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Title: Low altitude high speed cargo parachute system development: A status report

Abstract

A Low Altitude High Speed Cargo (LAHSC) parachute is being developed for deployment at velocities up to 250 knots at 300 ft altitude. The LAHSC parachute will decelerate and turnover a load to a 40 to 60 ft/sec vertical velocity at first vertical at approximately 30 ft AGL. The acceleration limit is 5 g's. Main chute cargo extraction will be necessary. A single parachute will be utilized for a 7500 lb load, and clusters will be used for larger loads. The 64-gore, 70-ft-dia parachute has a ring-slot/solid construction with a flare at the skirt to aid the inflation. This paper describes the parachute, the design process and testing to date. Model parachutes have been tested in wind tunnels and in free flight. A single full-scale parachute has been tested at low speeds with conventional load extraction, and with a vertical trajectory at deployment. 5 refs., 18 figs., 3 tabs.

Authors:
; ;  [1]; ;  [2]
  1. Sandia National Labs., Albuquerque, NM (USA)
  2. Army Natick Research, Development and Engineering Center, MA (USA)
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (USA)
Sponsoring Org.:
USDOD; Department of Defense, Washington, DC (USA)
OSTI Identifier:
5967772
Report Number(s):
SAND-90-2179C; CONF-9104171-8; AIAA-91-0880
ON: TI91009981
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Conference
Resource Relation:
Conference: 11. AIAA aerodynamic decelerator systems technology conference, San Diego, CA (USA), 9-11 Apr 1991
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; PARACHUTES; DESIGN; PERFORMANCE TESTING; ACCELERATION; AIR TRANSPORT; AIRCRAFT; ALTITUDE; CARGO; FUNCTIONAL MODELS; MILITARY EQUIPMENT; VELOCITY; WEIGHT; WIND TUNNELS; EQUIPMENT; TESTING; TRANSPORT; TUNNELS; UNDERGROUND FACILITIES; 450000* - Military Technology, Weaponry, & National Defense

Citation Formats

Sundberg, W D, Alsbrooks, T H, Ronquillo, K L, Sadeck, J E, and Lee, C K. Low altitude high speed cargo parachute system development: A status report. United States: N. p., 1991. Web.
Sundberg, W D, Alsbrooks, T H, Ronquillo, K L, Sadeck, J E, & Lee, C K. Low altitude high speed cargo parachute system development: A status report. United States.
Sundberg, W D, Alsbrooks, T H, Ronquillo, K L, Sadeck, J E, and Lee, C K. 1991. "Low altitude high speed cargo parachute system development: A status report". United States.
@article{osti_5967772,
title = {Low altitude high speed cargo parachute system development: A status report},
author = {Sundberg, W D and Alsbrooks, T H and Ronquillo, K L and Sadeck, J E and Lee, C K},
abstractNote = {A Low Altitude High Speed Cargo (LAHSC) parachute is being developed for deployment at velocities up to 250 knots at 300 ft altitude. The LAHSC parachute will decelerate and turnover a load to a 40 to 60 ft/sec vertical velocity at first vertical at approximately 30 ft AGL. The acceleration limit is 5 g's. Main chute cargo extraction will be necessary. A single parachute will be utilized for a 7500 lb load, and clusters will be used for larger loads. The 64-gore, 70-ft-dia parachute has a ring-slot/solid construction with a flare at the skirt to aid the inflation. This paper describes the parachute, the design process and testing to date. Model parachutes have been tested in wind tunnels and in free flight. A single full-scale parachute has been tested at low speeds with conventional load extraction, and with a vertical trajectory at deployment. 5 refs., 18 figs., 3 tabs.},
doi = {},
url = {https://www.osti.gov/biblio/5967772}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}

Conference:
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