All-terrain vehicles (ATV's) can be used successfully to accomplish certain tacks in woodlot operations. These tasks include chemical spraying, hauling seedlings and wood products, transporting small equipment and providing transportation for the driver. ATV's are versatile, mobile, easy to transport and can travel on very soft ground. They require a special driving technique. The safety of ATV's is discussed in relation to the driver`s technique and to the ATV's handling limits which can be exceeds in certain operating conditions.
This report is intended to be a follow-up to FERIC TN-58 "using circular saw felling heads to reduce butt splitting damage". In TR-56, shift-level production data have been collected and analysed for the Harricana and Koehring circular saw, the Denis SJ-24 twin saw, the Boreal DD-20 double-deck saw and the Lokomo cone saw felling heads. The five felling heads are compared side-by-side on various criteria such as carrier and hydraulic requirements their operational and mechanical aspects, butt splitting damage, smoothness of cut, stump height and kerf width.