Gas powered model helicopters are some of the most loved and flown models planes today. Both novices and experts love them to fly. But, these gas powered model helicopters are different from other helicopters and planes in many ways. In the first place, these helicopters are costlier than all the other model planes and helicopters. Then, you need some expertise and skill to assemble them, since they are involved with more bolts, bearings, metal and plastic, unlike the PVA and balsa wood used in other planes.