75 T ranspor tation Learn general maint enance and tr oubleshoo ting pr ocedures f or the machine Become f a miliar with maps and com pass readings sur viv al t echniq ues and gr oundt oair rescue signals see Air craf t Hand Signals in Chapt er 6 Do no t undul y damage the en vir onment or harass wildlif e Carr y re pair kits Carr y sur viv al kits o n e xt ended trips If using a Sn oCat ensure that there is an escape hatch in the r oof Essential Equipment Essential eq uipm ent suffcient f or each per son and machine t o be carried on e xt ended trips includes the f ollo wing Extra fuel in saf e container s T w ocy cle gas deicer Map com pass and GPS unit Com munication radio t elephone or sat ellit e phone plus an InReach or SPOT satellite messenger Sno wshoes Knif e Ice a wls Candles Extra clo thing T ool kit and spare par ts Block and tackle or comealong W at er pr oof matches