Accession Number:

AD0485279

Title:

AN INVESTIGATION OF VARIOUS TYPES OF DECELERATORS AT MACH NUMBER 2.8

Descriptive Note:

Technical rept.

Corporate Author:

ARO INC ARNOLD AFS TN

Personal Author(s):

• MacLanahan, Jr, D. A.

Report Date:

1966-07-01

Pagination or Media Count:

32.0

Abstract:

A test was conducted in the 16-ft supersonic wind tunnel to obtain deployment and steady-state drag, inflation, and stability characteristics of a metal ballute, a cloth ballute, a cloth ballute with a burble fence, a parasonic parachute, and a hyperflo parachute. All decelerators were tested at a Mach number of 2.8 at a dynamic pressure of 120 psfa. The data obtained show that a method of pre-inflation utilizing a methyl alcoholwater solution reduced the time required for the drag load to reach the steady-state value. This reduction of time permitted the metal ballute to attain full inflation.

Descriptors:

• *DROGUE PARACHUTES
• ALCOHOLS
• BALLOONS
• DEPLOYMENT
• DRAG
• EXPERIMENTAL DATA
• INFLATABLE STRUCTURES
• MODEL TESTS
• PARACHUTES
• PERFORMANCE(ENGINEERING)
• REDUCTION
• STABILITY
• SUPERSONIC CHARACTERISTICS
• SUPERSONIC FLOW
• TIME
• WATER
• WIND TUNNEL MODELS

Subject Categories:

• Aerodynamics
• Lighter-than-air Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE