Accession Number : AD0292307

Title :   RADIATION RESISTANT FLIGHT CONTROL SYSTEMS

Corporate Author : NORTHROP AIRCRAFT INC HAWTHORNE CALIF

Personal Author(s) : ROTH,L.

Report Date : 20 DEC 1962

Pagination or Media Count : 1

Abstract : Results of wat r-tunnel tests on the base-vented hydrofoil model show that the lift and moment coefficients and the lift coefficient derivative are all esse ti lly independent of ventilation number and are approximately equal to coefficient of uncamb red airfoils having th sam aspect ratio. HE DR G COEFFICIENT AGREED ONLY PARTIALLY WIT TWO-DIMENSIONAL CAVITY DRAG THEORY. The aximum lift-to-drag ratio w s 6.5 when fully vented and 2.4 wh n fully wetted. Due to the reduced blockage of the Free S URFACE Water Tu nel at the C ALIFORNIA Institute of Technology, t e minimum ventilation number (K) was 0.02 and the minimum air-flow rate coefficient (Q'cr provi i g full ventilatio was 0.026 ( RATE INCR ASING AND ). ! RAT CR ASING). (Author)

Descriptors :   *CONTROL SYSTEMS, *DAMAGE, *RADIATION EFFECTS, *RADIATION EFFECTS, ELECTRONS, ORGANIC MATERIALS, PHOTONS, PROTONS, SEMICONDUCTORS, SOLID STATE PHYSICS, VAN ALLEN RADIATION BELT, X RAYS

Distribution Statement : APPROVED FOR PUBLIC RELEASE