Abstract
In this paper, a small airplane is redesigned by using a distributed electrical propulsion (DEP) system. The design procedure is focused on the reduction of fuel consumption in cruise regime with constrained parameters of take-off/landing. In this case, a one half wing area compared to an original airplane is used. Take-off distance and minimum airspeed for landing is achieved by distributed propellers mounted on the leading edge of the wing. These propellers induce velocity on the wing and thereby increase local dynamic pressure, thus the required lift force can be reached with smaller wing area. Moreover, the distributed propellers are assumed as folded in cruise regime to minimize drag when the main combustion engine provides sufficient power.
Highlights
Distributed electric propulsion (DEP) are often used to design new kind of airplane in the last decade [1],[2]
Horizontal and vertical tails and propulsion system are used, only wing is modified. It is a kind of hybrid power system [4], where distributed propellers are electrically powered and original combustion engine, located in the front of fuselage, provides the required amount of power for cruise regime
The power of DEP system in the takeoff/landing regime is provided from a battery, while those are charged in cruise regime or at ground
Summary
Distributed electric propulsion (DEP) are often used to design new kind of airplane in the last decade [1],[2]. It enables to create high efficiency airplane in cruise regime and provides extremely short take-off and landing distance [3]. Horizontal and vertical tails and propulsion system are used, only wing is modified It is a kind of hybrid power system [4], where distributed propellers are electrically powered and original combustion engine, located in the front of fuselage, provides the required amount of power for cruise regime. Thanks to DEP we can reach required total lift force for smaller wing area due to velocity vv induced by propellers:
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