The invention discloses a deformable
airplane with a front-rear double
propeller and a front-rear double wing. A front wing (1) and a rear wing (1) form the front-rear double wing. The structure is compact, stiffness and strength are good, enough lift force is provided by a large wing face, two rudders (3) and four horizontal rudders (4) provide good
controllability, and the
airplane is suitable for low-speed large-load cruising. The front-back double wing can deform, the front wing (1) can rotate, the rear wing (2) can be folded, the
wingspan of the whole plane is adjustable to adapt to cruising at different speeds, and running on the ground, traction, transport and storage are also facilitated. The head and the
tail of the
airplane are each provided with a
propeller (5), and the propellers are combined into a pair of reversing propellers to generate push force and
pull force in the same direction. A power shaft is in the center and coincides with the propellers to offset torque, the weight of the whole airplane is moderate, the rolling
inertia is small, rolling maneuverability is facilitated, and no wing face
airflow interference exists. An airplane body upper shell and four wing upper shell structures are obtained through the photovoltaic
assembly skin and
honeycomb composite material lamination technology, the two wings and wing bodies are fused to provide large lighting area, the
photovoltaic effect is facilitated, a secondary battery is charged in time, power is supplied to a
system, long flight endurance is facilitated, and the airplane is
environmentally friendly and safe.