Accession Number:

AD0265480

Title:

CHARTS DEPICTING KINEMATIC AND HEATING PARAMETERS FOR A BALLISTIC REENTRY AT SPEEDS OF 26,000 TO 45,000 FEET PER SECOND

Descriptive Note:

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON D C

Personal Author(s):

• LOVELACE,URIEL M.

Report Date:

1961-10-01

Pagination or Media Count:

1.0

Abstract:

Re-entry trajectories, including computations of convective and radiative stagnation-point heat transfer, were calculated by using equations for a point-mass reentry vehicle entering the atmosphere of a rotating, oblate earth. Velocity was varied from 26,000 to 45,000 fps reentry angle, from the skip limit to -20 degrees ballistic drag parameter, from 50 to 200. Initial altitude was 400,000 ft. Explicit results are presented in charts which were computed for an initial latitude of 38 degrees N and an azimuth of 90 degrees from north. A method is presented whereby these results may be made valid for a range of initial latitude and azimuth angles. Author

Descriptors:

• *AERODYNAMIC HEATING
• *HYPERSONIC CHARACTERISTICS
• *REENTRY VEHICLES
• ATMOSPHERE ENTRY
• AZIMUTH
• DIGITAL COMPUTERS
• HEAT TRANSFER
• NOMOGRAPHS
• COMPUTER PROGRAMMING
• RANGE(DISTANCE)
• TERMINAL BALLISTICS
• VELOCITY

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE