Repair
	wood shop
	machine shop
	emergency hull breach
	sail 
		sewing machine
		grommet tool
		
	welder
	steel cutter
		angle grinder
		sabre saw
		plasma/arc-air welder

Electricity
	batteries
	inverters
	chargers
		solar panels
		wind generator
		steam generator
		current generator
		anchor generator
		bicycle generator
		ICE generator
		wave generator

Motive Power
	outboard trolling motors
	inboard main drive motor(s)
	dinghy motor/engine
	sail