TY  - JOUR
PY  - 1981//
TI  - Critical direct descent and ascent slopes for an agricultural tractor with forage harvester and trailer
JO  - International journal of vehicle design
A1  - Hunter, AGM
SP  - 289
EP  - 298
VL  - 2
IS  - 3
N2  - On sloping land, especially grassland, many accidents are caused by agricultural tractors and the equipment they are towing sliding downhill, even when the tractor brakes are applied. The maximum slope on which a tractor with equipment can be driven without sliding is known as the critical slope. The critical slope for a tractor towing a forage harvester and trailer is shown to be considerably less than that for a tractor alone, and the reasons for this arising from the design of forage harvesting equipment are given. Safety depends on having a high value for critical slope, and the factors affecting this are discussed. Using a four-wheel drive tractor and having brakes on the forage harvester and trailer is shown to produce a large increase in critical slope.<p />
LA  - en
SN  - 0143-3369
UR  - http://dx.doi.org/
ID  - ref1
ER  -