Progress 09/14/60 to 02/05/14
Outputs
Target Audience:
Nothing Reported
Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided? Removing all "State" projects from NEAES system...actual activity is ongoing. How have the results been disseminated to communities of interest? Removing all "State" projects from NEAES system...actual activity is ongoing. What do you plan to do during the next reporting period to accomplish the goals? Removing all "State" projects from NEAES system...actual activity is ongoing.
Impacts
What was accomplished under these goals?
Removing all "State" projects from NEAES system...actual activity is ongoing.
Publications
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Progress 10/01/12 to 09/30/13
Outputs
Target Audience: Nebraska tractor test reports are used by tractor manufacturers, dealers, and farmers to compare various tractors for their appropriateness for intended applications. The reports contain performance information pertaining to drawbar force, travel speed, PTO torque and speed, hydraulic flow and pressure and the associated derived power measurements. Additionally, fuel use rate at the reported measurement points are reported allowing buyers to select the proper tractor with the best fuel efficiency for their intended use. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided? Approximately 35 student workers are employed at the NTTL working 5-12 hours per week. Exposure to testing and design practices conveys practical knowledge which makes these students extremely employable upon graduation. How have the results been disseminated to communities of interest?
Nothing Reported
What do you plan to do during the next reporting period to accomplish the goals?
Nothing Reported
Impacts
What was accomplished under these goals?
Nebraska tractor test reports are used by tractor manufacturers, dealers, and farmers to compare various tractors for their appropriateness for intended applications. The reports contain performance information pertaining to drawbar force, travel speed, PTO torque and speed, hydraulic flow and pressure and the associated derived power measurements. Additionally, fuel use rate at the reported measurement points are reported allowing buyers to select the proper tractor with the best fuel efficiency for their intended use. During the reporting period, testing for 32 tractors was completed. Results were desiminated in the form of Nebraska Tractor Test Reports. These reports were produced by the Nebraska Tractor Test Laboratory and reviewed by the Nebrakska Tractor Test Board. All of these reports are available free of charge on the Nebraska Tractor Test Lab website.
Publications
- Type:
Other
Status:
Published
Year Published:
2013
Citation:
Nebraska Tractor Tests 2033-2065
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Progress 10/01/11 to 09/30/12
Outputs
OUTPUTS: During the reporting period, testing for 34 tractors was completed. Results were desiminated in the form of Nebraska Tractor Test Reports. These reports were produced by the Nebraska Tractor Test Laboratory and reviewed by the Nebrakska Tractor Test Board. All of these reports are available free of charge on the Nebraska Tractor Test Lab website. PARTICIPANTS: Roger Hoy - Professor - Principle Investigator Brent Sampson - Test Engineer Austin Lammers - Test Engineer Justin Geyer - Test Engineer Rodney Rohrer - Test Engineer TARGET AUDIENCES: Tractor Manufacturers, Tractor Dealers, Implement Manufacturers, Implement Dealers, Tractor Users, Certain Governmental agencies PROJECT MODIFICATIONS: Not relevant to this project.
Impacts
Nebraska tractor test reports are used by tractor manufacturers, dealers, and farmers to compare various tractors for their appropriateness for intended applications. The reports contain performance information pertaining to drawbar force, travel speed, PTO torque and speed, hydraulic flow and pressure and the associated derived power measurements. Additionally, fuel use rate at the reported measurement points are reported allowing buyers to select the proper tractor with the best fuel efficiency for their intended use.
Publications
- 2011/10 TO 2012/09 Nebraska and OECD Tractor Test Data for 2012 containing test data through December 2011.
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Progress 10/01/10 to 09/30/11
Outputs
OUTPUTS: During the reporting period, testing for 38 tractors was completed. Results were desiminated in the form of Nebraska Tractor Test Reports. These reports were produced by the Nebraska Tractor Test Laboratory and reviewed by the Nebrakska Tractor Test Board. All of these reports are available free of charge on the Nebraska Tractor Test Lab website. PARTICIPANTS: Roger Hoy - Professor - Principle Investigator Dave Morgan - Assistant Director Brent Sampson - Test Engineer Austin Lammers - Test Engineer Justin Geyer - Test Engineer TARGET AUDIENCES: Tractor Manufacturers, Tractor Dealers, Implement Manufacturers, Implement Dealers, Tractor Users, Certain Governmental agencies PROJECT MODIFICATIONS: Not relevant to this project.
Impacts
Nebraska tractor test reports are used by tractor manufacturers, dealers, and farmers to compare various tractors for their appropriateness for intended applications. The reports contain performance information pertaining to drawbar force, travel speed, PTO torque and speed, hydraulic flow and pressure and the associated derived power measurements. Additionally, fuel use rate at the reported measurement points are reported allowing buyers to select the proper tractor with the best fuel efficiency for their intended use.
Publications
- Nebraska and OECD Tractor Test Data for 2011 containing test data through December 2010.
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Progress 10/01/09 to 09/30/10
Outputs
OUTPUTS: During the reporting period, testing for 15 tractors were completed. Results were desiminated in the form of Nebraska Tractor Test Reports. These reports were produced by the Nebraska Tractor Test Laboratory and reviewed by the Nebrakska Tractor Test Board. All of these reports are available free of charge on the Nebraska Tractor Test Lab website. PARTICIPANTS: Roger Hoy - Professor - Principle Investigator Dave Morgan - Assistant Director Brent Sampson - Test Engineer Austin Lammers - Test Engineer TARGET AUDIENCES: TARGET AUDIENCES: Tractor Manufacturers, Tractor Dealers, Implement Manufacturers, Implement Dealers, Tractor Users, Certain Governmental agencies PROJECT MODIFICATIONS: Not relevant to this project.
Impacts
Nebraska tractor test reports are used by tractor manufacturers, dealers, and farmers to compare various tractors for their appropriateness for intended applications. The reports contain performance information pertaining to drawbar force, travel speed, PTO torque and speed, hydraulic flow and pressure and the associated derived power measurements. Additionally, fuel use rate at the reported measurement points are reported allowing buyers to select the proper tractor with the best fuel efficiency for their intended use.
Publications
- No publications reported this period
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Progress 10/01/08 to 09/30/09
Outputs
OUTPUTS: During the reporting period, testing for 22 tractors were completed. Results were desiminated in the form of Nebraska Tractor Test Reports. These reports were produced by the Nebraska Tractor Test Laboratory and reviewed by the Nebrakska Tractor Test Board. All of these reports are available free of charge on the Nebraska Tractor Test Lab website. PARTICIPANTS: Roger Hoy - Professor - Principle Investigator Dave Morgan - Assistant Director Brent Sampson - Test Engineer Austin Lammers - Test Engineer TARGET AUDIENCES: Tractor Manufacturers, Tractor Dealers, Implement Manufacturers, Implement Dealers, Tractor Users, Certain Governmental agencies PROJECT MODIFICATIONS: Not relevant to this project.
Impacts
Nebraska tractor test reports are used by tractor manufacturers, dealers, and farmers to compare various tractors for their appropriateness for intended applications. The reports contain performance information pertaining to drawbar force, travel speed, PTO torque and speed, hydraulic flow and pressure and the associated derived power measurements. Additionally, fuel use rate at the reported measurement points are reported allowing buyers to select the proper tractor with the best fuel efficiency for their intended use.
Publications
- No publications reported this period
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Progress 10/01/07 to 09/30/08
Outputs
OUTPUTS: During the reporting period, testing for 26 tractors were completed. Results were desiminated in the form of Nebraska Tractor Test Reports. These reports were produced by the Nebraska Tractor Test Laboratory and reviewed by the Nebrakska Tractor Test Board. All of these reports are available free of charge on the Nebraska Tractor Test Lab website. PARTICIPANTS: Roger Hoy - Professor - Principle Investigator Dave Morgan - Assistant Director Brent Sampson - Test Engineer TARGET AUDIENCES: Tractor Manufacturers, Tractor Dealers, Implement Manufacturers, Implement Dealers, Tractor Users, Certain Governmental agencies PROJECT MODIFICATIONS: Not relevant to this project.
Impacts
Nebraska tractor test reports are used by tractor manufacturers, dealers, and farmers to compare various tractors for their appropriateness for intended applications. The reports contain performance information pertaining to drawbar force, travel speed, PTO torque and speed, hydraulic flow and pressure and the associated derived power measurements. Additionally, fuel use rate at the reported measurement points are reported allowing buyers to select the proper tractor with the best fuel efficiency for their intended use.
Publications
- No publications reported this period
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Progress 10/01/06 to 09/30/07
Outputs
OUTPUTS: During the reporting period, testing for 25 tractors were completed. Results were desiminated in the form of Nebraska Tractor Test Reports. These reports are produced by the Nebraska Tractor Test Laboratory and reviewed by the Nebraska Tractor Test Board. All of these reports are available free of charge on the Tractor Test Lab website.
PARTICIPANTS: Roger Hoy - Professor - Principle Investigator Dave Morgan - Assistant Director Brent Sampson - Test Engineer
TARGET AUDIENCES: Tractor Manufacturers, Tractor Dealers, Implement Manufacturers, Implement Dealers, Tractor Users, Certain Governmental agencies
Impacts
Nebraska tractor test reports are used by tractor manufacturers, dealers, and farmers to compare various tractors for their appropriateness for intended applications. The reports contain performance information pertaining to drawbar force, travel speed, PTO torque and speed, hydraulic flow and pressure and the associated derived power measurements. Additionally, fuel use rate at the reported measurement points are reported allowing buyers to select the proper tractor with the best fuel efficiency for their intended use.
Publications
- No publications reported this period
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Progress 10/01/05 to 09/30/06
Outputs
For this summary period performance tests were completed for 15 tractors using the OECD Code 2 procedure on the following tractors: Challenger tractor models MT635B, MT645B, MT655B, MT665B, MT755B, MT835B, MT845B, MT855B, and MT875B; and McCormick tractor models MTX 120, MTX 135, MTX 150, MTX 165, MTX 185, XTX 185, XTX 200, and XTX 215. A limited OECD Code 2 procedure was used in testing 15 additional tractors: John Deere tractor models 4320, 4520, 4720, 5103, 5203, 5303, 5225, 5325, 5425, 5525, 8430 IVT and 8430 PowerShift; and Massey Ferguson tractor models 451, 471 and 481.
Impacts
The performance results are presented in summary form and are available to the public via hardcopy or from the Nebraska Tractor Test Laboratory web site. This provides unbiased tractor performance data that can be used for comparisons of tractor performance among tractor models and manufacturers.
Publications
- Nebraska and OECD Tractor Test Data for 2006 containing test data through December 2005.
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Progress 10/01/04 to 09/30/05
Outputs
For this summary period, performance tests were completed for 19 tractors using OECD Code 2 or a limited OECD test as follows: AGCO LT75, LT90, RT135, RT150, GT55A, GT75A; Challenger 765B, 865B; John Deere 4320, 4520, 4720, 9620, 9620T; Massey Ferguson 491, 492; McCormick MTX120, MTX135, MTX150. One additional tractor was withdrawn after the test was completed.
Impacts
The performance results are presented in summary form and are available to the public via hardcopy or from the Nebraska Tractor Test Laboratory web site. This provides unbiased tractor performance data that can be used for comparisons of tractor performance among tractor models and manufacturers.
Publications
- Nebraska and OECD Tractor Test Data for 2005 containing test data to December 2004.
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Progress 10/01/03 to 09/30/04
Outputs
For this summary period, tests were completed for 17 tractors using OECD Code 2 or a limited OECD test as follows: Jon Deere 5105, 5205, 7720, 7820, 7920; New Holland TC55DA, TC48DA, TG285, TG225, TG230, TG210; Case IH DX55, DX48, MX 285, MX255, MX230, MX210.
Impacts
The performance results are presented in summary form and are available to the public via hardcopy or from the Nebraska Tractor Test Laboratory web site. This provides unbiased tractor performance data that can be used for comparisons of tractor performance among tractor models and manufacturers.
Publications
- Nebraska and OECD Tractor Test Data for 2004 containing test data to December 2003.
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Progress 10/01/02 to 09/30/03
Outputs
For this summary period, 16 tractors were tested using OECD Code 2 or a limited OECD test as follows: CaseIH MX285; Challenger MT735, MT745, MT755, MT765, MT835, MT845, MT855, MT865; John Deere 7220, 7420, 7520, 8120, 8220; New Holland TJ255, TJ285.
Impacts
The performance results are presented in summary form and are available to the public via hardcopy or from the Nebraska Tractor Test Laboratory web site. This provides unbiased tractor performance data that can be used for comparisons of tractor performance among tractor models and manufacturers.
Publications
- Nebraska and OECD Tractor Test Data for 2003 containing test data to December 2002.
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Progress 10/01/01 to 09/30/02
Outputs
For this summary period, 15 tractors were tested using OECD Code 2 or a limited OECD test as follows: Case IH STX 275: John Deere 6403, 6603, 7810, 8320, 8320T, 8420, 8520, 8520T, 9120, 9220, 9320, 9320T, 9520, 9520T.
Impacts
The performance results are presented in summary form and are available to the public via hardcopy or from the Nebraska Tractor Test Laboratory web site. This provides unbiased tractor performance data that can be used for comparisons of tractor pereformance among tractor models and manufacturers.
Publications
- Nebraska and OECD Tractor Test Data for 2002 containing test data to December 2001.
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Progress 10/01/00 to 09/30/01
Outputs
For this reporting period, 20 tractors were tested using OECD Code 2 or a limited OECD test as follows: AGCO Allis 9755, 9765, 9775; Case IH STX 375, 440, 440 Quadtrac; Massey Ferguson 8245, 8260, 2210, 2220; John Deere 7510, 7610, 7710, 9200, 9300T, 9400T; White 8510, 8610, 8710, 8810.
Impacts
The performance results are presented in summary form and are available to the public via hardcopy or from the Nebraska Tractor Test Laboratory web site. This provides unbiased tractor performance data that can be used for comparisons.
Publications
- Nebraska and OECD Tractor Test Data for 2001 containing test data to December 2000.
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Progress 10/01/99 to 09/30/00
Outputs
For this reporting period, 15 tractors were tested using OECD Code 2 or a limited OECD test as follows: AGCO Allis 8745, 8765, 8775, 8785; White 6410, 6810; John Deere 5105, 5205, 8110, 8210, 8210T, 8310, 8310T, 8410, 8410T.
Impacts
The performance results are presented in summary form and are available to the public. This provides unbiased tractor performance data that can be used for comparisons.
Publications
- Nebraska and OECD Tractor Test Data for 2000 containing test data to December 1999.
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Progress 10/01/98 to 09/30/99
Outputs
For this reporting period, nine tractors were tested using OECD Code 2 as follows: Case IH MX 270, MX 240, MX 220, MX 200, MX 180; White 8310, 8410; Allis 9735, 9745. Two tractors were tested using a limited test: White 6710, 6510.
Impacts
The performance results are presented in summary form and are available to the public. This provides unbiased tractor performance data that can be used for comparisons.
Publications
- Nebraska and OECD Tractor Test Data for 1999 containing test data to December 1998.
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Progress 10/01/97 to 09/30/98
Outputs
For the calender year 1998; Twelve tractors were tested using OECD Code 2 as follows: John Deere 8100T, 8200T, 8300T, 8400T. Caterpillar 65E, 75E, 85E, 95E. AGCO 9245, 9735. White 8410, 8310. Four tractors were tested using a limited test: John Deere 5210, 5310, 5410, 5510 Two tractors were reconfirmed using only a PTO test: New Holland 3930, 4630. OECD approval was obtained for six ROPS tests and 13 tractors carried over from calender year 1997.
Impacts
(N/A)
Publications
- No publications reported this period
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Progress 10/01/95 to 09/30/96
Outputs
Nineteen OECD Code II tests will be conducted during the current year. Reports (approximately 30 pages each) were issued for each tractor. In addition three protective structure tests (Code IV) and two sound tests (Code V) were conducted and reports published. Fifteen foreign OECD test reports (tractors tested at foreign facilities and marketed here) were reviewed and reports issued. Three special SAE sound tests were performed on foreign-made tractors and seven OECD verification tests were performed on tractors with new emissionized engines. Three bare engines were tested for the Army National Guard and one for the Nebraska Department of Roads.
Impacts
(N/A)
Publications
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Progress 01/01/95 to 12/30/95
Outputs
Nineteen OECD tractor performance tests were conducted and reports (30 pages) were issued for each one. Four OECD protective structure tests were conducted and reports (20 pages) were issued. Two hydraulic lift capacity tests and two OECD sound level tests were conducted and reports (15 pages) issued. Seven test reports were reviewed and Nebraska summaries (4 pages each) were issued for tractors tested at foreign OECD facilities. In addition, ten test reports were issued on tractors tested at non-U.S. facilities. Six engine tests were performed for the Nebraska Dept. of Roads and the Nebraska Army National Guard. Data reports were issued for each one. Supplementary test reports were issued on 110 tractors for three different manufacturers. These supplementaries cover models not included in the original test, but derived from the tested model. Two OECD Certificates of Minor Modification were issued. One proprietary tractor test was performed for a manufacturer through
financial support from the World Bank. This was a tractor for developing countries.
Impacts
(N/A)
Publications
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Progress 01/01/94 to 12/30/94
Outputs
Process: 13 OECD tractor performance tests were conducted and reports (30 pages)were issued for each one. Two OECD protective structure tests were conducted and reports (20 pages) were issued. One OECD sound level test was conducted and a report (15 pages) issued. In addition, 14 test reports were issued on tractors tested at non-U.S. facilities. Five engine tests were performed for the Nebraska Department of Roads and their tests were performed for the Nebraska Army National Guard. Supplementary test reports were issued on 150 tractors for three different manufacturers. These supplementaries cover models not included in the original test, but derived from the tested model.
Impacts
(N/A)
Publications
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Progress 01/01/93 to 12/30/93
Outputs
10 OECD tractor performance tests were conducted. At the time of writing not alltests have been finished. There were no additional tests.
Impacts
(N/A)
Publications
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Progress 01/01/92 to 12/30/92
Outputs
Eight OECD tractor performance tests were conducted nd reports (30 pages each) were issued. Additional Tests: 1. Protective Structuring Test (there were 2 failures, thus there were three tests) 2. Extra sound level tests on remodeled cabs. In addition to the reports on each of the tests mentioned above, there were 30 summary reports issued on tractors which were tested by foreign stations according to the OECD test code.
Impacts
(N/A)
Publications
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Progress 01/01/91 to 12/30/91
Outputs
A. Tractor Testing: During 1991, a total of 14 tractor tests were performed. Thedivision was as follows: CASE-IH - 4 Tractors - U.S. Manufacture - OECD Test; Ford New Holland - 7 Tractors - 4 UK Manufacture, 3 Belgian Manufacture - OECD Test; Caterpillar - 2 Tractors - U.S. Manufacture - OECD Test; Belarus - 1 Tractor - U.S.S.R. Manufacture - SAE Test. B. Other: Two proposals are in preparation for tractive performance evaluation and design consultation of Air Force towing vehicles. Scheduled for Fall of 1992 and 1993. Organized OECD Test Engineers Conference in Lincoln -- 20 countries were represented. Prepared discussion program and was elected Chair of Conference. Organized technical demonstrations for group.
Impacts
(N/A)
Publications
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Progress 01/01/90 to 12/30/90
Outputs
Five (5) tractors were tested during 1990 and five (5) SAE Reports were issued. A contract with USAID for a visit by Dr. Leviticus to Egypt resulted in a joint proposal to the National Agricultural Research Project of Egypt. Total expected value is $350,000. Two (2) OECD Brake Tests were performed and reports issued. A contract with USAID paid for a consultancy of Dr. Leviticus to the Government of India. A proposal is being prepared for: a. Technology Transfer; b. Engine Development.
Impacts
(N/A)
Publications
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Progress 01/01/89 to 12/30/89
Outputs
The following tractor tests were performed. 1 OECD-Code IV Protective Structure Test, 16 OECD-Code II Tractor Performance Tests, 3 SAE J708 Tractor Performance Tests, 4 OECD-Code V Sound Level Tests.
Impacts
(N/A)
Publications
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Progress 01/01/88 to 12/30/88
Outputs
1. During 1988 the tractor testing program involved 10 tractors according to the following test codes: 5 tractors (U.S. make) SAE J708. 4 tractors (U.S. make) OECD Code I. 1 tractor (U.S. make) OECD Code II. 2. A Protective structure test was performed on manufacturers premises and a multiple OECD report was issued. 3. A Code V OECD sound level report was issued for the 4 tractors which were tested under OECD Code I. 4. Supplementary tests were performed on the soil track for one of the manufacturers. These were proprietary tests.
Impacts
(N/A)
Publications
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Progress 01/01/87 to 12/30/87
Outputs
Due to the passage of the revised tractor test law (LB 768), the testing load was reduced from an average 40 tractors per year to 18 in 1986 and 0 in 1987. For 1988, 6 tractors are scheduled and no other commitments have been made. Average test load is predicted to be reduced by 90%. The remaining activities of the laboratory have been incorporated into the Center for Agricultural Equipment (CAE) which was officially made part of the University system by the Board of Regents in September, 1987. These remaining activities have to do with evaluating OECD test reports and preparing them for printout in a form usable by the farmers. The other Center activities have been in the form of engineering and testing contracts with local and out-of-state manufacturers and agencies. Most of the time was spent in establishing contracts with industries. An advisory panel of industry people was established to guide the Center's policies and directions.
Impacts
(N/A)
Publications
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Progress 01/01/86 to 12/30/86
Outputs
18 Tractors were tested during 1986. Reports on each unit have been printed or are in process. Fourteen of these tractors were of 100% foreign manufacture; 2 had foreign engines. 2 had foreign axle and transmission. Two Chinese students finished their MSc theses. Extra work was obtained from the U.S. Air Force. This will probably lead to further work. Proprietary tests were performed again for Caterpillar as a continuation of last year. A small contract for consultation was obtained from EPA. It concerns the influence of the elimination of lead from gasoline - as planned by EPA.
Impacts
(N/A)
Publications
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Progress 01/01/85 to 12/30/85
Outputs
37 tractors were tested during 1985. Reports on each unit have been printed or are in process. 30 tractors of foreign manufacture. The hydraulic test procedure is by now well standardized although problems with some companies do occur mainly due to technical difficulties. The final report is now a 4-page report. The Chinese students have started their research on traction (Miss Chen) and hydraulic lift testing (Mr. Li). They should finish at the end of 1986. Proprietary tests were performed for Caterpillar during the summer of this year.
Impacts
(N/A)
Publications
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Progress 01/01/84 to 12/30/84
Outputs
45 tractors were tested during 1984. Reports on each have been printed or are being prepared for printing at this time. The Hydraulic Lift capacity test has become part of the standard test procedure. The first units were tested in the fall of 1984. Geoffrey Shropshire and Alvin Brhel are responsible for the test. A second IBM computer was purchased in order to enable telecommunications with industry and to facilitate data manipulation. Two Chinese students arrived from Jilin University of Technology. They will be performing research in subjects of interest to the laboratory. Proprietary tests were performed on engine oil additives and on Agricultural Tractor Tire wear.
Impacts
(N/A)
Publications
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Progress 01/01/83 to 12/30/83
Outputs
Mr. John Carlile retired as Chief Technician. Geoffrey Shropshire (B.Sc) in a new employee. One of his chief responsibilities will be development of computing capabilities and interfacing with printing of the reports. 43 tractors were tested. Reports on each were printed and distributed. Assistance in training was given and workshops were held by the investigator in Australia and the Peoples Republic of China. The hydraulics lift test pad was built and equipment purchased for use in Spring, 1984. An IBM computer was purchased.
Impacts
(N/A)
Publications
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Progress 01/01/82 to 12/30/82
Outputs
M.L. Mumgaard retired as Assistant Chief. His place was taken by David Morgan. 45 tractors were tested - one tractor had to be retested (still in progress) because of engine spec. changes. New sound equipment was installed. 4 sets of summary tables were developed which will be continued in future years. They will show running averages of various tractor characteristics. Three large units were tested at Lincoln Airport. Special equipment had to be purchased for this. A new fuel consumption measuring unit was built to measure fuel consumption on the track. New dynamometer (750 HP) was used with success. An extra low range load cell was bought so that the dyno could be used accurately within the 100 - 200 HP range. This proved very useful when the Westinghouse dyno jammed due to shifting lab foundations. Three Chinese scientists have been working here over the past year. Test Car transmission has been overhauled ($6000) a new spare transmission is being
prepared.
Impacts
(N/A)
Publications
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Progress 01/01/81 to 12/30/81
Outputs
The new Dyno was installed but not yet operated. Tests were performed with a borrowed fuel consumption measuring system for use on the track. As a result of the tests, a special system was purchased and will be put in operation sometime during 1982. This will accommodate engine sizes up to 1200 HP. Basic overhauls were performed on the Westinghouse Dynamometer. New electronic equipment to enable testing of new modern variable speed fans on tractors. Both the dynamoneter torque and the rpm's have to be integrated for this purpose. Hydraulic testing has continued. A publication on the data should come out this year. No official decision has been made pertaining to the inclusion of the data in the test report. New sound equipment was purchased but did not arrive until 1982. 43 tests were performed, 5 were withdrawn, 2 were rerun. The largest tractor ever was tested at the Airport.
Impacts
(N/A)
Publications
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Progress 01/01/80 to 12/30/80
Outputs
The move to the new facility in the Ag. Engineering Annex was completed and equipment installed. A new computer system was put in operation. A new dynamometr arrived but will be utilized only in 1981. The 400 HP dyno from Westinghouse is in urgent need of repair (est. cost $15,000). A total of 43 tractor tests were made despite the start-up problems. Staff was enlarged by one engineer. A number of special sound tests and one evaluation test (proprietary) were performed.
Impacts
(N/A)
Publications
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Progress 01/01/79 to 12/30/79
Outputs
A large part of our effort went into preparations for the move to a new facility. This includes purchase and development of equipment. This season should see the first use of a new drawbar measurement system developed together with Electrometrics of Lincoln. The Hydraulic lift capacity test procedure will probably be finalized in the next two months and testing should become official this year. A graduate student from South America should be starting on a research to verify some of the prediction equations developed by Brixius and Zoz for on concrete operation.
Impacts
(N/A)
Publications
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Progress 01/01/78 to 12/30/78
Outputs
Thirty tractors were tested while 6 special sound tests were carried out. Hydraulic lift capacity testing was continued. Publication of results may start in Spring, 1979. New fuel measuring instrumentation was developed, installed and tested. Development of adequate drawbar measuring equipment continued. Ties with foreign countries were strengthened through meetings (ISO, visitors) and correspondence.
Impacts
(N/A)
Publications
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Progress 01/01/77 to 12/30/77
Outputs
37 tractors were tested of which 2 were withdrawn. Continuation was made with hydraulic lift capacity research. Instrumentation development was continued specifically in the drawbar measurement and the laboratory fuel measurement devices area. Continued and improved contact was established with overseas companies, research institutes and test stations. Stronger relations were established with the ISO members which will ultimately result in a world wide unified code for testing and evaluation.
Impacts
(N/A)
Publications
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Progress 01/01/76 to 12/30/76
Outputs
A total of 30 tractors were tested officially. One vehicle was withdrawn by itsmanufacturer. A total of 32 vehicles were tested to hydraulic lift capacity under a project which was initiated in the beginning of this year. The ultimateaim is to establish a test procedure for hydraulics and a matching system for Tractor & Implement. Industry response has favorable. A general update effort of instrumentation has been started and electronic equipment has been purchased and is under consideration for future use in lab. Strong ties have been established with test agencies in Europe for development of better and more uniform test procedures. The lab has given a major input to the International Standardization. This effort will continue and has so far resulted in a better recognition and understanding of our endeavour's worldwide. Sound Level Testing has been continued and members are involved in a Federally Supported Farm Sound Level Research.
Impacts
(N/A)
Publications
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Progress 01/01/75 to 12/30/75
Outputs
Twenty eight tractors were scheduled but a total of 30 was tested during the period January 1, 1975 - January 1, 1976. Nine of these were from overseas (Great Britan, Italy, Japan, USSR). It would appear that the higher horsepower trend observed in 1974 is continuing, although the 1976 schedule has mainly smaller models. The average PTO and Drawbar Horsepowers remained essentially the same although the range increased from about 20 to 225 on the PTO. Again several 4-wheel drive (amongst them 2 from Italy) were tested. A start is beingmade to design a test method for hydraulic lift systems incorporating the existing national ASAE and International (ISO) standards. These tests will be conducted for a period of about one year. Tests have been conducted on a prototype test treadmill. The device is still in rudimentary stages and is aimed at producing data for future design of a full scale system. The system will enable testing of tractors when adverse weather
conditions prohibit the useof the outside track. Instrumentation updating has been commenced. New counters, intergrators, measuring and weighing devices have been and are being ordered. A new, high HP, dynamometer is under consideration for use on future high HP needs for the larger tractors.
Impacts
(N/A)
Publications
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Progress 01/01/74 to 12/30/74
Outputs
Over twenty tractors were originally scheduled for the 1974 test season. However, because of shortages of component parts, several tests were cancelled and five were postponed until next year. Fifteen tractors were tested in 1974, one gasoline and fourteen Diesel models. The current trend in higher horsepowertractors is reflected in the large average horsepower for all models tested. The average drawbar horsepower was 126 and the average PTO horsepower was 130. Included in the drawbar average is the largest tractor ever tested at the Laboratory, developing over 270 horsepower, and also a tractor developing over 227 horsepower. Both these tractors were not equipped with PTO outlets and therefore PTO tests were not conducted. This year a third of the tractors tested were four-wheel drive models, a larger percentage than ever before, whichis an indication of their growing popularity. One tractor was withdrawn from test this year. The manufacturer was attempting to
develop more horsepower thanthe engine was designed to produce. It failed during the two hour maximum PTO test, which is where most engine failures occur. This year a brief test was conducted comparing radial ply and conventional bias ply tractor tires on various surfaces. The radial ply tires showed a slight advantage in traction, economy, and maximum pulling ability. However, it is questionable whether the slight difference in performance justifies the higher cost of the radial ply tires.
Impacts
(N/A)
Publications
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Progress 01/01/73 to 12/30/73
Outputs
In accordance with the Nebraska Tractor Law thirty-seven new tractor models weresubmitted for test. All the official tests were completed despite two serious engine failures. All repair was noted on the test reports. Twelve foreign built tractors were included in the 1973 test season. Two Deutz from Germany, six David Brown tractors from England, one Kubota from Japan, two John Deere models from West Germany and one Belarus from the Soviet Union. The Soviet built tractor had several unusual features such as: built in air compressor, airtank, centrifugal type oil cleaner, large front wheels, coil springs for the front wheels, hydrualic power lift that could be disconnected and a top opening in the tractor cab. Domestic Mfg. have not made any great progress in fuel economy but this will no doubt change. The German Deutz (Air-cool) gave the best economy of any tractor tested this year. Over half the tractors (19) tested this year were equipped with cabs. This
emphasizes the safety and comfort for the operator. This progress has helped reduce the sound level for the operator as well as making the vehicle much more safe. The Allis-Cahlmers Co. reached a low of less than 80 dBA thus setting a record for tractors tested here during 1973. During the 1973 test season three protective devices (cabs & roll guards) were tested. This activity may increase. A total of over 876 visitors came to the Lab during 1973. These represented 23 different farm groups. The largest such group was sponsored by the National Grange convention held in Lincoln. 179 attended this visit at the Tractor Test Lab during the convention.
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Progress 01/01/72 to 12/30/72
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In fulfilling the requirements of the Nebraska Tractor Law, twenty-nine tractorswere submitted for test in 1972. Twenty-eight of these were completed as one was withdrawn before completion. The horsepower ranged from 22 to 175, averaging 96 horsepower. Two of the tractor engines were ruined by overfueling in an attempt by company representatives to obtain more power. In an effort to cooperate in pollution control four of the tractors used lead-free gasoline. All others used Diesel fuel. Half of the tractors were tested with cabs and built-in roll over protection. Sound levels recorded in the cabs reached an alltime low - at least 10 dBA lower than corresponding tractors three years ago. Several tractors equipped with cabs recorded 82 dBA. Foreign tractors were numerous this year; One Japanese, One Italian, Two Romanian, and four German. These tractors compete in price with domestic tractors and fill some of the horsepower ranges omitted by American
manufacturers. The German tractors are all of the Air-cooled engine types which have been very successful in Europe. Six tractors were equipped with dual wheels which provide more weight with less compaction. Three of the tractors tested this year were of the four-wheel type.These are gaining in popularity among users of power equipment.
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Progress 01/01/71 to 12/30/71
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In fulfilling the requirements of the Nebraska Law twenty-seven tractors were tested in 1971. Horsepower sizes ranged from 19 to 180 averaging over one hundred hp. Only one tractor used gasoline as a fuel -- all the others used Diesel fuel. European tractors were well represented in 1971. Two came from Japan and two came from Germany. The two German tractors (Deutz) were the firstin recent years to use air-cooled Diesel engines in their tractors which have been tested. These tractors showed above average fuel economy. The second yearof official sound testing has encouraged considerable improvement in noise control. Nineteen of the tractors tested this year were equiped with improved cabs that further reduced the noise for the operator. The other tractors testedhad roll-guards as an added safety feature. Nearly all the cabs used on the above tractors were of the crush resistant type. All these features have improved the safety, comfort and convenience for the
operator. This year a 50% load run at reduced engine speed was added to the official test. This run has received good acceptance among tractor users and will become one of our more significant test runs as it fits many of the normal tractor operations.
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Progress 01/01/70 to 12/30/70
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Twenty-nine tractors were tested (ave. 82 hp) in 1970. Only nine of these used gasoline as a fuel; all the others used Diesel fuel. Propane (EPG) was not usedin any 1970 tests. The first official sound measurement of each tractor was started this year. This stimulated marked improvement in noise reduction of tractors--as much as 50% in some cases. Insulation, better mufflers, longer exhaust stacks, and better cab design have contributed to the reduction of noise. Six tractors were equipped with cabs. This year trial runs were made tomeasure fuel consumption at 50% of load at a reduced engine speed and using a higher gear ratio. This indicated not only better fuel economy but also a further reduction in noise. This procedure will become an official part of the 1971 test procedure. In an effort to reduce time in running maximum drawbar runs in each test only eight different speeds were used in 1970. This will be reduced to six in 1971. In 1970 the
Massey-Ferguson brought the first V-8 engine in their new MF 1150 Diesel tractor. J. I. Case brought the first crush resistant cab on the case 1170 Diesel tractor. Formerly roll guards were used in connection with safety cabs. This year five tractors were equipped with rollguards. The use of crush resistant cabs and roll guards indicate that much emphasis is directed towards more safety in tractor design. This project will be revised and continued.
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Progress 01/01/69 to 12/30/69
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Thirty-two tractors were submitted for test in 1960; however, only thirty-one tests were officially completed and reported. One foreign tractor developed considerable engine trouble during the maximum PTO run and the tractor was subsequently withdrawn from test. Four foreign built tractors were tested this year. The Cast tractor came from Italy, two David Brown tractors from England and a French tractor is being sold by the Allis-Chalmers Company. All these tractors are being sold throughout the United States. Diesel fuel as a source of power for tractors has been gaining in popularity during the past years; however, in 1969 half the tractors used gasoline that were tested and the balance used diesel fuel. Not a single tractor was tested using propane (LPG) which is rather unusual. Despite a gradual deterioration in fuel economy duringrecent years the Case 1470 Diesel tractor was able to produce a specific fuel consumption of 0.389 pounds of fuel per horsepower
hour during the Maximum PTO run. Only one other tractor has surpassed this performance in the fifty years of tractor testing. The Ford 8000 and 9000 Diesel tractors were the first row crop tractors to be tested with cabs in place. This Manufacturer has made a real effort to reduce the noise level in the cab thus making the cab more comfortable for the operator. Both tractors were equipped with roll guards.
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Progress 01/01/68 to 12/30/68
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Thirty-two tractors were submitted for test in 1968; however, only twenty-nine were officially completed and reported. Following the conclusion of tests of three tractors it was discovered, by routine inspection, that the power plants had been altered and were not stock engines. The official tests were therefore cancelled and it will be necessary to retest these three tractors next spring after the modifications have been corrected to stock conditions as required by law. Horsepower continues to rise each year and apparently that trend will continue for some time. The first six tractors tested this year developed over one hundred horsepower each. Two others, tested later, also exceeded one hundred horsepower. The average horsepower of all tractors tested in 1968 was over seventy-eight. Two tractors (Ursus) were brought here for test from Poland. Two David Brown tractors came from England this year. The latter are being sold throughout U.S.A. at the present
time. This marks the completion of the 1000th tractor test after almost fifty years of this activity. It is rathersignificant that the first Ford tractor tested, in 1920, produced 2.5 horsepowerhours per gallon of fuel. Test #1000, also a Ford tractor, produced 13.47 horsepower hours per gallon. This represents over six times more work per gallon of fuel. Diesel fuel is still the predominant type of fuel for tractors.Twenty diesel tractors were tested this year, 10 used gasoline and 2 burned LPG.
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Progress 01/01/67 to 12/30/67
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Twelve official Tractor Tests were completed in 1967. The small number of testswas due to recent legislative action and also because of the demand for current models. Twelve new models scheduled for 1967 were postponed until 1968. Nebr. Tractor Test Results indicate that the average horsepower, of farm tractors, is increasing at the rate of about 2.3 hp each year. This fact must be considered when buying a new tractor. This year one tractor developed slightly over 100 horsepower, three over 75, and five over 50, and three less than 50 horsepower. Eight of the twelve tractors tested used diesel fuel and the other four used gasoline. A new concept in tractor power transmission was realized this year with the testing of two "Hydrostatic Drive" tractors. The infinitely variable speed control of these tractors provided ease and versatility in operation but not without loss in efficiency. During the 10 hour run, fuel consumption was 25% higher than the corresponding
conventional tractro. One tractor, the Zetor5511, was sent to the Nebraska Testing Laboratory fro Czechoslovakia. Two othertractor, which are sold in Nebraska, but built mainly in England, were also tested.
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