Observation crafts without pilots (drones) are extremely good value as regards cost versus provision of a service and they are nightly being used more and more for their small radar signature, their low cost, ease of operation and also so as not to endanger a pilot's life. Our propulsion drone benefits from a double-arrowed wing to optimize its aerodynamic qualities at high speed. Ail of these optronic captors (infrared, ultraviolet and various wavelengths, etc., active and passive) are in the central, bulbous section of the fuselage.

Designed to travel at lower speeds than the drone jet, its propulsion system is adapted to maximize the propellent output and to allow a wide flight range. The front-to-back stability is largely assured by the size and the number of stabilizer surfaces, the stability of the flight being one of the principle qualities of the autonomous or radio-controlled drone. The engine with its narrow diameter and small frontal section, situated up from the fuselage gives an excellent propellent output. In fact, the aerodynamic flow is only very slightly disturbed below the propeller.