535 research outputs found
Landing arrangement for aerospace vehicle Patent
Aerospace vehicle with variable planform for hypersonic and subsonic fligh
Control system for rocket vehicles Patent
System for aerodynamic control of rocket vehicles by secondary injection of fluid into nozzle exhaust strea
Landing arrangement for aerial vehicle Patent
Aerodynamic configuration for aircraft capable of high speed flight and low drag for low speed takeoff or landing upon presently existing airfield
Jet aircraft configuration Patent
Upper surface, external flow, jet-augmented flap configuration for high wing jet aircraft for noise reductio
Wind-Tunnel Investigation of Control-Surface Characteristics XV : Various Contour Modifications of a 0.30-Airfoil-Chord Plain Flap on an NACA 66(215)-014 Airfoil
The effects of fuselage size on the low-speed longitudinal aerodynamic characteristics of a thin 60 degree delta wing with and without a double slotted flap
A Correlation of Two-dimensional Data on Lift Coefficient Available with Blowing-, Suction-, Slotted-, and Plain-flap High -lift Devices
Wind-Tunnel Investigation of an NACA 23012 Airfoil with a 0.30-Airfoil-Chord Double Slotted Flap
Aerodynamic Characteristics of Three Deep-Stepped Planing-Tail Flying-Boat Hulls
An investigation was made in the Langley 300 MPH 7- by 10-foot tunnel to determine the aerodynamic characteristics of three deep-stepped planing-tail flying-boat hulls differing only in the amount of step fairing. The hulls were derived by increasing the unfaired step depth of a planing-tail hull of a previous aerodynamic investigation to a depth about 92 percent of the hull beam. Tests were also made on a transverse-stepped hull with an extended afterbody for the purpose of comparison and in order to extend and verify the results of a previous investigation. The investigation indicated that the extended afterbody hull had a minimum drag coefficient about the same as a conventional hull, 0.0066, and an angle-of-attack range for minimum drag coefficient of 0.0057 which was 14 percent less than the transverse stepped hull with extended afterbody; the hulls with step fairing had up to 44 percent less minimum drag coefficient than the transverse-stepped hull, or slightly more drag than a streamlined body having approximately the same length and volume. Longitudinal and lateral instability varied little with step fairing and was about the same as a conventional hull
- …