Vertical Take Off and Landing (VTOL) Tilt Wing
AAE has designed and built a composite, modular 2,000 lb Tilt Wing Vertical Take Off and Landing (Pilot Optional) Unmanned Air vehicle.
VSTOL / Extreme Short Field Take Off and landing (XSTOL) with Fixed Wing Performance:
- Empty Weight - 600 lbs: VTOL Gross Weight - 1,600 lbs: STOL Gross Weight – 2,200 lbs
- XSTOL Gross Weight: 1,800 lbs (minimum) 20ft takeoff runs (off deck of ship)
- XSTOL Gross Weight: 2,000 lbs with a 20 ft takeoff run and a 25 knots wind –over-the-deck.
- XSTOL Gross Weight : 2,200 lbs (minimum ) 50 ft. takeoff run (off deck of ship)
- VTOL Payload Capacity: 1,000 lbs: STOL Payload Capacity: 1,600 lbs
- Detachable Payload Size: 6 ft wide and 14 ft long, variable stability as it moves 4 ft
- Cruise speed 160 knts Loiter speed: 60 knts ; Approach Speed :40 knts
- Stall Speed: 28 knots (Conventional Stall) ;
- Endurance :18 hours; Operating radius : 1,800 miles
- Wing Span : 43 ft ; Wing Area : 174 sqft ;Wing loading : 8.6 lbs sqft ;Aspect Ratio : 10.88 ,
- L/D : 25:1,
- Has a drag value of 100 lbs at cruise and generates 2,500 lbs of lift.
- It is equipped with 4 six foot tractor counter rotating variable pitch propellers.
- Aircraft Length : 24 ft
Fully Blown Wing. The tilt wing provides a low cost VTOL with superior performance over tilt rotor and ducted fans. Continuously externally propeller blown wing, full span leading edge slats, split flaps and drooping ailerons, prevents stall in all flight regimes and delivers a smooth transition from hover to forward flight. Unique flight control technology addresses low speed controllability.
Aerodynamic Lift , where air moving over the top of the wing can be "bent down" towards the ground using flaps and a propeller stream sheet blowing over the curved surface of the top of the wing. The bending of the flow results in aerodynamic lift.
Powered Lift System. The 95 mph propeller airstream under the wing is a powered lift system, deflecting the airstream downward directed by the flap and aileron, while additional air travels through the slots in the flap and follows the outer edge due to the Coandă effect. At low speeds, the amount of air being delivered by this system can be a significant fraction of the overall airflow, generating as much lift as if the plane were traveling at much higher speeds.
Boundary Layer Enhancements , are caused by the increased turbulence levels away from the wall region thus transporting higher-energy outer flow into the wall region.
Virtual Shaping Effect is utilized to aerodynamically thicken the airfoil at high angles of attack, delaying the stall.