Accession Number : ADA132271

Title :   An Experimental Investigation into the Forebody and Engine Inlet Airflow Characteristics of a Photographic Reconnaissance Window Pallet on the RF/A-18 Aircraft.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Poole,Joseph William

PDF Url : ADA132271

Report Date : Jun 1983

Pagination or Media Count : 88

Abstract : A 1/7 scale model of a Navy F/A-18 forebody was built and tested in the Naval Postgraduate School Aeronautics Department Windtunnel to determine and measure the airflow total pressure distribution at the two engine inlet faces. The lower nose of this scaled model was then modified to incorporate a photographic reconnaissance window pallet, capable of holding two camera sensors within the existing gun bay. The model was retested using the same pressure measurement parameters and compared with the base aircraft test run to determine the airflow changes entering the engine inlets caused by this nose modification. Tufting was used on the model in each case to facilitate flow visualization observations and photography. The results of this investigation show that the pallet design tested caused no change in the airflow entering the engine intake ducts at low aircraft airspeeds.

Descriptors :   *Air flow, *Jet engine inlets, *Air intakes, Pressure distribution, Modification, Photographic windows, Pallets, Replacement, Naval aircraft, Aircraft models, Pressure measurement, Missions, Photographic reconnaissance, Wind tunnel tests, Flow visualization, Theses

Subject Categories : Aerodynamics
      Aircraft
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE