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Best Thirty Tests



Best Thirty tractor photo
1921 - 1925
Agricultural Crawler tractor
Tractor Tests
NTTL 77: 2-speed crawler
NTTL 99: 2-speed crawler
NTTL 104: 3-speed crawler
Nebraska Tractor Test 77
2-speed crawler
May 9 - 20, 1921
Link: Nebraska Tractor Test 77 file
Belt power (max)30.43 hp
22.7 kW
Drawbar performance
Max power24.53 hp
18.3 kW
Max pull4343 lbs
1969 kg
Nebraska Tractor Test 99
2-speed crawler
September 11 - 24, 1923
Link: Nebraska Tractor Test 99 file
Belt power (max)32.55 hp
24.3 kW
Drawbar performance
Max power25.96 hp
19.4 kW
Max pull4930 lbs
2236 kg
Nebraska Tractor Test 104
3-speed crawler
September 15 - 22, 1924
Link: Nebraska Tractor Test 104 file
Belt power (max)37.83 hp
28.2 kW
Drawbar performance
Max power33.21 hp
24.8 kW
Max pull7563 lbs
3430 kg
Page information
Contact: Peter Easterlund
Updated on August 23, 2022
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