Quiet Short-Haul Research Aircraft – A Summary of Flight Research Since 1981

Riddle, D. W.; Stevens, Victor C.; Eppel, Joseph C.

doi:10.4271/872315

“…AoA are known from NASA's Quiet Short-Haul Research Aircraft (QSRA) [19] or the Japanese prototype "ASKA", which were investigated in the eighties and early nineties [20]. As an example, the ASKA had a flight path angle control system giving the pilot the opportunity to select a flight path angle by an additional lever.…”

Section: Flight Performancementioning

confidence: 99%

Flight Mechanical Challenges of STOL Aircraft Using Active High Lift

Diekmann¹

2019

Journal of Aircraft

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This paper focuses on the flight mechanical characteristics of an active high-lift supported transport type aircraft. The presented configuration combines a boundary-layer controlled flaps system with the benefits of propeller slipstream deflection. The underlying aerodynamic models and assumptions are provided. The extraordinary flight performances especially at low airspeed will be pointed out, as well as potential weaknesses. Special attention is paid to the unusually strong aerodynamic couplings in the lateral motion. Therefore, flight dynamics characteristics will be presented and their challenges discussed. The key influences are pointed out and an outlook will be given, how to exploit this knowledge for safe and satisfactory aircraft operation and handling.

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“…The potential of the aircraft to change the AoA or the pitch attitude due to a variation of the blowing performance at a selected flight path angle is extraordinary. Similar capabilities to uncouple flight path and pitch attitude respectively AoA are known from NASA's Quiet Short-Haul Research Aircraft (QSRA) [19] or the Japanese prototype "ASKA", which were investigated in the eighties and early nineties [20]. As an example, the ASKA had a flight path angle control system giving the pilot the opportunity to select a flight path angle by an additional lever.…”

Section: Flight Performancementioning

confidence: 99%

Flight Mechanical Challenges of STOL Aircraft Using Active High-Lift

Horst

¹

,

Sommerwerk

²

,

Neuert

³

et al. 2017

35th AIAA Applied Aerodynamics Conference

3

0

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This paper focuses on the flight mechanical characteristics of an active high-lift supported transport type aircraft. The presented configuration combines a boundary-layer controlled flaps system with the benefits of propeller slipstream deflection. The underlying aerodynamic models and assumptions are provided. The extraordinary flight performances especially at low airspeed will be pointed out, as well as potential weaknesses. Special attention is paid to the unusually strong aerodynamic couplings in the lateral motion. Therefore, flight dynamics characteristics will be presented and their challenges discussed. The key influences are pointed out and an outlook will be given, how to exploit this knowledge for safe and satisfactory aircraft operation and handling.

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“…The scenarios covered in the evaluation included takeoff, hover (for VTOL), climb, and landing. A fixed-wing STOL scenario was also analyzed, which was mainly based on the QSRA flight test data [30,31,9]. SSTOL pilot preferences and safety issues were then inferred from the STOL data.…”

Section: User Preferences and Safety Considerationsmentioning

confidence: 99%

1998/1999 AIAA Foundation Graduate Team Aircraft Design Competition: Super STOL Carrier On-board Delivery Aircraft

LeGresley

¹

,

Bathke

²

,

Carrion

³

et al. 2000

SAE Technical Paper Series

1

0

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The Cardinal is a Super Short Takeoff and Landing (SSTOL) aircraft, which is designed to fulfill the desire for center-city to center-city travel by utilizing river "barges" for short takeoffs and landings to avoid construction of new runways or heliports. In addition, the Cardinal will fulfill the needs of the U.S. Navy for a Carrier On-board Delivery (COD) aircraft to replace the C -2 Greyhound. Design requirements for the Cardinal included a takeoff ground roll of 300 ft, a landing ground roll of 400 ft, cruise at 350 knots with a range of up to 1500 nm with reserves, payload of 24 passengers and baggage for a commercial version or a military version with a 10,000 lb payload, capable of carrying two GE F110 engines for the F-14D, and a spot factor requirement of 60 feet by 29 feet.

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Quiet Short-Haul Research Aircraft – A Summary of Flight Research Since 1981

Cited by 6 publications

References 18 publications

Flight Mechanical Challenges of STOL Aircraft Using Active High Lift

Flight Mechanical Challenges of STOL Aircraft Using Active High Lift

Flight Mechanical Challenges of STOL Aircraft Using Active High-Lift

1998/1999 AIAA Foundation Graduate Team Aircraft Design Competition: Super STOL Carrier On-board Delivery Aircraft

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