Last edited by Shazragore
Monday, February 17, 2020 | History

3 edition of Preliminary supersonic flight test evaluation of performance seeking control found in the catalog.

Preliminary supersonic flight test evaluation of performance seeking control

Preliminary supersonic flight test evaluation of performance seeking control

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  • 39 Currently reading

Published by National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, Available from the NASA Center for Aerospace Information] in [Washington, DC], [Linthicum Heights, MD .
Written in English

    Subjects:
  • Airplanes -- Flight testing.

  • Edition Notes

    StatementJohn S. Orme and Glenn B. Gilyard.
    SeriesNASA technical memorandum -- 4494., NASA technical memorandum -- 4494.
    ContributionsGilyard, Glenn B., United States. National Aeronautics and Space Administration. Scientific and Technical Information Program.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL14696262M

    The HyTech Program is the descendant of ramjet and scramjet propulsion programs. This information has provided the opportunity to assess the flight-derived stability and control derivatives for maneuvering flight in the hypersonic regime. During acceleration to cruising speed and during the cruise phase, the vehicle will use onboard sensors to stabilize and maneuver during free flight until it is close enough to the target to enter the terminal phase. The engine design life is 55 missions, or minutes.

    The engine inlet, shown in Figurewill be subject to significantly lower temperatures. In contrast, the conditions in the combustor would require active fuel-cooling of the metallic structure known as Haynes Specific calibration instruments, whose behavior has been determined from previous tests, may be brought on board to supplement the aircraft's in-built probes. Portugal later joined the program and the first of 20 aircraft was redelivered on 26 Junewith another 20 going through the update incountry at this time. This paper presents the findings of this laboratory test The use of a lidar forward-looking turbulence sensor for mixed-compression inlet unstart avoidance and gross weight reduction on a high speed civil transport by David Soreide 1 edition published in in English and held by WorldCat member libraries worldwide Inlet unstart causes a disturbance akin to severe turbulence for a supersonic commercial airplane. The vehicle will be equipped with an inertial navigation system that tells the avionics the location and orientation of the booster.

    The aircraft were common with the regular Fs. Weapons guided by the GPS in combination with an inertial navigation system, such as conventional air-launched cruise missiles, are often cited as precision weapons that can operate in any weather. This paper reports on the progress of this development program and its application to the prevention of inlet unstart in a mixed-compression supersonic inlet. These materials must maintain their useful properties at elevated working temperatures; they must have high specific strength and stiffness, be oxidation resistant, and have high damage tolerance fracture toughness and adequate creep resistance to withstand the thermal and aerodynamic stresses. The Tests If your IAS stall speed is 40 and usual cruise mph adapt the figures to your aircraft you will do the runs at 50, 65, 80, 95, and full open. Currently, engine development is the critical path of the program, which is managed by the Air Force and carried out by industry under contract.


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Preliminary supersonic flight test evaluation of performance seeking control Download PDF Ebook

The RCS value is a restrictive measurement of the aircraft's frontal or side area from the perspective of a static radar. This paper presents flight and ground test evaluations of the propulsion system parameter estimation process used by the performance seeking control system.

The internal pneumatic frequency response of the system is accurate to beyond 10 Hz. These targets may include buried command and control facilities, buried manufacturing and storage facilities for chemical, biological, or nuclear weapons, or fixed launch sites for tactical ballistic missiles.

Learn the fundamentals of planning, conducting, and reporting flight tests of military systems. The GPS may not be as reliable during the dive because attempts at jamming will probably be intensified, and fewer GPS satellites will be in view of the antenna.

For a mixed-compression inlet, there is a tradeoff between propulsion system efficiency and unstart margin.

Steve Brown

Summary Answer Several critical enabling technologies besides propulsion will have to be developed for a hypersonic air-to-surface weapon.

In fact, the United States has no capability to engineer or manufacture operational, hypersonic, air-breathing missiles. Because no flight demonstration is planned for the HyTech Program, follow-on programs Preliminary supersonic flight test evaluation of performance seeking control book the development of prototypes will be necessary before the Air Force can commit to the development of an operational system see Question 2e i.

Among these are several types of onboard sensors: 1 vehicle attitude and stabilization sensors e. Another possibility would be low-rate radio frequency updates during flight.

Today's technology allows us to collect and analyze hundreds of times more data than when I started at Boeing 23 years ago—so much data, that we remove all passenger accommodation to make space for our equipment and build our own in-airplane intranet.

Low weight and high strength design structures could be, for example, monocoque structures for circular airframe configurations or honeycomb-sandwich structures for other configurations. First, the propulsion technologies applicable to a Mach 4 to Mach 8 propulsion system will be addressed, with a focus on the demands of flight at Mach 8.

Air data e. This paper presents the findings of this laboratory test The use of a lidar forward-looking turbulence sensor for mixed-compression inlet unstart avoidance and gross weight reduction on a high speed civil transport by David Soreide 1 edition published in in English and held by WorldCat member libraries worldwide Inlet unstart causes a disturbance akin to severe turbulence for a supersonic commercial airplane.

The Tests If your IAS stall speed is 40 and usual cruise mph adapt the figures to your aircraft you will do the runs at 50, 65, 80, 95, and full open. Surface flow on the forward-swept wing of the XA was studied using tufts and flow cones.

Figure also shows the likely range of temperatures of critical components of the surface of an airframe structure that is not actively cooled, as well as of an airframe structure that uses liquid cooling at roughly Mach 6 to Mach 8.

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My learning began long ago. These analyses would provide a basis for articulating valid operational requirements for a hypersonic missile system.

Many launch vehicles are flight tested, with rather more extensive data collection and analysis on the initial orbital launch of a particular launch vehicle design.

Advances in manufacturing technology and fabrication methods will be required for the routine production of cost effective, reliable structures in appropriate sizes. Radar sensors can be used to penetrate cloud cover and have the potential for longer range target detection. This expanded HyTech Program could lead to an initial operational capability by The upgrade of its aircraft fleet started in January and is expected to complete by Mobile, Time-Critical Targets.

Play media F flight demonstration video The F Raptor is a fifth-generation fighter that is considered fourth generation in stealth aircraft technology by the USAF. The axisymmetric design in Figure shows that the engine airflow is captured near the front of the vehicle, transported internally through ducts, and exhausted axially at the aft end of the vehicle.

National Technical Reports Library

The first Block 30 F entered service in Munitions The committee believes that a hypersonic missile will not require fundamentally new munitions technology. The control algorithms will have to change the Preliminary supersonic flight test evaluation of performance seeking control book loop characteristics dynamically e.A FLIGHT TEST EVALUATION OF THE AS-K 21 By Richard H.

Johnson, Published in Soaring Magazine, July The letters ‘AS” stand for Alexander Schleicher Segelflugzeugbau, a well-known and long-established sailplane manufacturer of Poppenhausen, West Germany. The letter “K” stands for Rudolph Kaiser, a prolific. Introduction. There are a number of methods for level flight performance data reduction for propeller-driven airplanes.

Most of these methods have problems with determining full throttle performance under standard conditions and are not readily useable for determining airplane drag coefficients. NTPS; World’s premier civilian flight test education organization teaching test pilots and flight test engineers to safely plan & execute flight test programs.

T&E Performance Flight Testing I | NTPS.SUPERSONIC FLIGHT Pdf RESULTS OF Pdf PERFORMANCE SEEKING CONTROL ALGORITHM ON A NASA F AIRCRAFT John S. Orme * and Timothy R. Conners ** NASA Dryden Flight Research Center P.O. Box Edwards, California Abstract A model-based, adaptive control algorithm called Per-formance Seeking Control (PSC) has been flight tested on an FA Preliminary Evaluation of Supersonic Transport Category Vehicle Operations in the National Airspace System National Airspace System, as well as flight time control guidance and climb to.Title: Subsonic Flight Test Evaluation of a Performance Seeking Control Algorit hm on an F Airplane Author: GlennB.

Gilyard and John S. Orme Subject.