The Thunder Tiger Raptor 30 is a very nice flying 30 class helicopter. With its low price it is known as the most popular beginner helicopter and is used by advanced pilots also. The Raptor is a very responsive machine and very cheap to fix. I put my raptor into the ground from about 100 ft. The damages were around 60 dollars. This is amazing that you can fly a nitro powered R/C helicopter that is cheap to maintain and will fly very well. My Raptor has plenty of power from its engine. The engine that I am using is the O.S .32 and it provides enough power to do advanced aerobatics.