You are going to want to help your kids make this fun craft/activity. Check out how easy it is to do it below. Egg Carton Plane & Helicopter Craft You just need egg cartons, scissors, paints, ...

Bell Helicopters' SPRINT design. Although SPRINT is designed to lift a 5,000 lb payload, the design could be scaled up to carry heavier cargo or personnel. (Bell Helicopters) The US Defense Advanced ...