of the aircraft. This will allow rotary wing takeoff performance with fixed wing cruise speeds. [Figure 15-3] The landing gear provides the mobility while on the ground and may be either conventional or tricycle. Conventional gear consists of two main wheels  and one under the tail. The tricycle configuration also uses two mains  with the third wheel under the nose. Early auto- gyros  and several models of gyroplanes  use conven- tional gear  while most of the later gyroplanes incorporate tricycle landing gear. As with fixed wing aircraft  the gyroplane landing gear provides the ground mobility not found in most helicopters. Wings may or may not comprise a component of the gyroplane. When used  they provide increased per- formance  increased storage capacity  and increased stability. Gyroplanes are under development with wings that are capable of almost completely unload- ing the rotor system and carrying the entire weight Figure 15-3. The CarterCopter uses wings to enhance performance. WINGS LANDING GEAR 15-3