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2001 Assessment of the Office of Naval Research's Aircraft Technology Program (2001) / Chapter Skim
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8. Special Aviation Projects
Pages 40-46

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From page 40...
... vectoring extremely short takeoff and landing control, tailless operational research (VECTOR)
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From page 41...
... AADS Goal The goal of the AADS portion of VECTOR is to design, develop, install, and flight test, in a modified X-3 1 nose cone, an advanced air data system that replaces the current probe employed on most aircraft. By positioning the sensor away from the influence of the vehicle's local flow field, the system will provide accurate air data during all types of aircraft maneuvers, including those in stalled, highangle-of-attack flight, without degrading normal fighter operational capability.
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From page 42...
... This view affirms a prior conclusion of the Naval Studies Board that identified STOL as a key enabling technology meriting increased attention by the Navy. In its 1997 report, the NSB observed that an affordable STOL capability will require substantially improved flight stability and control at slow speeds and urged a follow-on to the X-31 EFM effort to explore multiaxis thrust vectoring and integrated flight and propulsion controls.
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From page 43...
... Recommendations The committee recommends that ONR convoke a comprehensive review of VECTOR by an independent panel of outside experts for the purpose of evaluating project goals and technology transition potential, assessing technical, operational and financial risk and determining the need for restructuring where appropriate. Further, the committee believes serious consideration should be given to incorporating a multiaxis thrust vectoring nozzle in the ESTOL X-3 1 in order to reduce technical and operational risk and generate flight data more representative of an operational aircraft design.
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From page 44...
... if step 1 is successful, testing the aircraft equipped with both VTDP and lifting wing to validate contractor claims of enhanced performance and reduced ownership costs. The products or deliverables resulting from the ATD will be a Navy YSH-60F equipped with Piasecki VTDP compound helicopter components, flight testing, and the resultant flight test data.
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From page 45...
... Under normal circumstances the committee believes there should be only moderate technical risk associated with the proposed Piasecki concept, because lifting wing concepts are not new to the rotorcraft world, a VTDP-like concept flew successfully in the 1960s, and the current VTDP has undergone wind tunnel testing. However, the YSH-60F test vehicle is to be modified not at Paisecki facilities but at the Naval Air Warfare Center, Patuxent River, Maryland, by non-Piasecki contract engineers and technicians.
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Key Terms

  • vtdp compound
  • thrust vectoring
  • special aviation
  • test vehicle
  • aviation projects

  • multiaxis thrust
  • lifting wing
  • flight test
  • cruise flight
  • aircraft technology

  • specific range
  • vector project
  • vectoring nozzle
  • air data
  • aircraft design

  • operational aircraft
  • marine corps
  • flight data
  • tunnel testing
  • ducted propeller

  • naval air
  • tailless operational
  • naval aviation
  • extremely short
  • tailless design

  • reduced tail
  • vectored thrust
  • wind tunnel
  • flight tests
  • flight testing


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