Accession Number : AD0374656

Title :   WIND-TUNNEL INVESTIGATION OF THE EFFECTS OF MULTIPLE EXTERNAL STORES ON THE LONGITUDINAL AERODYNAMIC CHARACTERISTICS OF THE DOUGLAS A4D AIRPLANE,

Corporate Author : DAVID TAYLOR MODEL BASIN WASHINGTON D C AERODYNAMICS LAB

Personal Author(s) : Eaton,Peter T.

Report Date : SEP 1961

Pagination or Media Count : 94

Abstract : A wind-tunnel investigation was performed to determine the effect of a number of external stores on the drag and longitudinal stability of a 0.10-scale model of the Douglas A4D airplane. Longitudinal aerodynamic characteristics for the basic A4D-2 and A4D-5 airplane configurations and the effect of various combinations of external stores on these characteristics were determined. The mass-flow ratio, internal drag, and chamber pressure drag for the internally ducted A4D-2 configuration were also determined. These tests were conducted over a Mach number range of 0.50 to 1.00, and an angle-of-attack range of -4 to 12 degrees at a sideslip angle of zero. The results of these tests are presented without analysis.

Descriptors :   (*ATTACK BOMBERS, EXTERNAL STORES), (*WIND TUNNEL MODELS, EXTERNAL STORES), AERODYNAMIC CONFIGURATIONS (U) BOMB RACKS, FUEL TANKS, AIR TO SURFACE MISSILES, AIRCRAFT AMMUNITION, ROCKETS, DRAG, PRESSURE, ANGLE OF ATTACK, STAGNATION POINT, MOMENTS, SKIDDING, TRANSONIC CHARACTERISTICS, JET BOMBERS

Subject Categories : Aerodynamics
      Guided Missile Dynam, Config & Cntrl Surfaces

Distribution Statement : APPROVED FOR PUBLIC RELEASE