they need to know in flying their model. Some military bases allow such high tech aircraft to fly within limited airspace such as Kaneohe Marine base in Hawaii, and Whidbey Island NAS in Washington State. An average turbine aircraft will cost between US$150–US$10,000 with more than US$20,000 all-up becoming more common. Many manufactures sell airframes such as Yellow Aircraft and Skymaster. Turbines are produced from The Netherlands (AMT) to Mexico (Artes Jets). The average microturbine will cost between US$2500 and US$5000 depending on engine output. Smaller turbines put out about 12 lbf (53 N) of thrust, while larger microturbines can put out as much as 45 lbf (200 N) of thrust. Radio-control jets require an onboard FADEC (full authority digital engine control) controller; this controls the turbine, as on a full-size aircraft. RC jets also require electrical power. Most have a lithium polymer (LiPo) battery pack at 8–12 volts that controls the FADEC. There is also a LiPo for the onboard servos that control ailerons, elevator, rudder, flaps and landing gear. Of much less complexity are the types of RC jet aircraft that actually use an electric motor-driven ducted fan instead to power the aircraft. So called "EDF" models can be of much smaller size, and only need the same electronic speed controller and rechargeable battery technology as propeller-driven RC electric powered aircraft use. Radio-controlled jet aircraft are produced in the colors of various airlines. Among the most popular airline liveries used by modelers are those of American, Singapore, Pan Am, Etihad and Delta Airlines. Sports planes Sports planes are planes capable of performing aerobatic maneuvers involving aircraft attitudes that are not used in normal flight. Typical aerobatic maneuvers include inside loop, outside loop, Immelmann turn, inverted flight, stall turn, slow roll and Cuban 8. 3D planes 3D flight is a type of flying in which model aircraft have a thrust-to-weight ratio of more than 1:1 (typically 1.5:1 or more), large control surfaces with extreme throws, low weight compared to other models of same size and relatively low wing loadings. Simply put, 3D flight is the art of flying a plane below its stall speed (the speed at which the wings of the plane can no longer generate enough lift to keep the plane in the air). These elements allow for spectacular aerobatics such as hovering, 'harriers', torque rolling, blenders, rolling circles, flat spins, and more; maneuvers that are performed