Welcome, I guess there isn't a free Flight forum, is there?! There's a Control line one, maybe a F.F. one some day??? Anyway, you need fuel (obviously) The Cox engines like a little more nitro than the bigger engines, but they'll run O.K. on 10-15% reg. fuel. Actually, there's a forum just for 1/2A engines and such, but since we're here already, back to your question...A good 1.5 volt starting battery, a glow head clip, a 6x3 prop would prob. be good for FF. Do they have the integral fuel tank on the back? If not, then a 1/2 oz. to 1 oz. max tank (don't fill it, or the thing will run too long, and you'll be walkin' a long ways!) If they have spring starters, that'll help a lot. Screw the eng. to a plank, cyl. upright, attach plank to something solid w/ screws, like your porch or sumpthin', open the needle valve about 3 - 3 1/2 turns, and give 'er a try. If you have the spring starter right behind the prop, just wind it clockwise 1 turn after engaging it w/ prop. and let it go. Watch your fingers, one of the nastiest "bites" I've ever gotten from a prop was from one of those little buggers! I'm sure I'm forgetting something, but somebody else will chime in before too long...