Accession Number : AD0272857

Title :   STUDY OF SOFT RECOVERY FROM TWO-STAGE VEHICLES

Corporate Author : SPACE RECOVERY SYSTEMS INC EL SEGUNDO CALIF

Personal Author(s) : SCHURR,G.G.

Report Date : JAN 1962

Pagination or Media Count : 1

Abstract : Possible recovery methods for vertically reentering payloads released from two-stage boosters are investigated and discussed. Reentry trajectories including deceleration and heating rates were calculated for a series of reentry velocities and ballistic parameters. The influence of drag variation during reentry on peak deceleration and heating rates is investigated. A recovery method using a variable area drag brake (flexibrake), a parachute system and aerial snatch by helicopter was selected as the most suitable system for recovery of a payload released from a booster consisting of an XM-33 rocket as first stage and an ABLX 244 rocket as second stage. The flexibrake will limit the maximum deceleration to 15 G and the maximum deceleration onset rates to 300 G/sec. Attitude stabilization of the payload during the entire flight is maintained by a hydrogen peroxide attitude control system. Preliminary weights and volumes for the payload and recovery vehicle were estimated. (Author)

Descriptors :   *RECOVERY, *SPACE CAPSULES, AERODYNAMIC CONFIGURATIONS, AERODYNAMIC HEATING, ATMOSPHERE ENTRY, DECELERATION, DRAG, FEASIBILITY STUDIES, HEAT TRANSFER, HYPERSONIC CHARACTERISTICS, INSTRUMENTATION, MATHEMATICAL ANALYSIS, PARACHUTE DESCENTS, PARACHUTES, REENTRY VEHICLES, SOUNDING ROCKETS

Distribution Statement : APPROVED FOR PUBLIC RELEASE