Patent ID: 11970275
Assignee: ISRAEL AEROSPACE INDUSTRIES LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 18:
19. A kit for converting a conventional take off and landing (CTOL) air vehicle configuration to a short take off and landing (STOL) air vehicle configuration or to a super short take off and landing (SSTOL) air vehicle configuration, the CTOL air vehicle configuration comprising a main aerodynamic lift generating wing arrangement comprising a port wing and a starboard wing, empennage and main propulsion system, the main propulsion system configured for enabling powered aerodynamic flight of the air vehicle within a flight envelope including at least conventional landing and take off, the kit comprising:
a plurality of secondary electrical propulsion modules, each said secondary propulsion unit module configured for being selectively and removably coupled to the CTOL air vehicle configurations to provide a variety of different STOL air vehicle, and wherein when coupled to the CTOL air vehicle configuration the plurality of secondary electrical propulsion modules provide a DEP system, wherein the DEP system is different from the main propulsion system, the DEP system configured, when coupled to the CTOL air vehicle configuration, for selectively providing at least augmented lift to the main aerodynamic lift generating wing arrangement in at least landing to thereby increase a maximum lift coefficient of the air vehicle from a nominal maximum lift coefficient to a modified maximum lift coefficient, and wherein the kit is configured for ensuring that, when thus coupled, each secondary electrical propulsion unit is externally mounted in a single fixed position with respect to a respective one of said port wing and said starboard wing.