Accession Number:

AD0672735

Title:

MATHEMATICAL MODEL AND COMPUTER PROGRAM FOR THE ASCENT AND DESCENT OF HIGH-ALTITUDE TETHERED BALLOONS. SCHEDULE SUB-LINE ITEM 1AD

Descriptive Note:

Task rept. no. 4

Corporate Author:

GOODYEAR AEROSPACE CORP AKRON OH

Personal Author(s):

• Doyle, Jr., George R.
• Vorachek, Jerome J.

Report Date:

1968-02-01

Pagination or Media Count:

120.0

Abstract:

The results of the preliminary study indicate that it is feasible to launch and retrieve high-altitude balloons under certain conditions. It was shown that a 30 million cu ft balloon can be launched in a Summer I-75 percent wind profile at 2000 ftmin, and retrieved in the same wind at -200 ftmin with 20 percent of the helium valved off. Although launch and retrieval are possible in the Winter I wind profile, it is more restricted. The 79 million cu ft balloon in the Winter I 25 percent wind show results similar to the 30 million cu ft balloon in the Summer I 75 percent wind. The results of the feasibility study can be used as preliminary design criteria for components of the tethered balloon-systems-balloon, tether and winch.

Descriptors:

• *BALLOONS
• COMPUTER PROGRAMS
• DEPLOYMENT
• EQUATIONS OF MOTION
• FEASIBILITY STUDIES
• HIGH ALTITUDE
• LAUNCHING
• MATHEMATICAL MODELS
• MECHANICAL CABLES
• MOORING
• STANDARDS
• WIND

Subject Categories:

• Lighter-than-air Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE