Rage RC Tempest 600 X4 Electric Powered RTF Airplane with PASS (Pilot Assist Stability Software) SystemThe Tempest 600 X4 takes all the features from the original Tempest and adds a separate aileron servo for 4 channel control that makes it a more capable flyer. So now, it's not only a relaxing, fun flying airplane that can help beginners learn to fly, it's also a capable 4 channel airplane that experienced pilots will appreciate. The Tempest 600 X4 is manufactured from durable EPP foam for extra durability and the pusher style power system offers an