Accession Number : AD0774399

Title :   Balloon Apex Pressure Differential. (A Simple Approximation of Pressure Differential at the Apex of Single Cell, Natural Shape Balloons).

Descriptive Note : Instrumentation papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Dwyer,James F.

Report Date : 09 OCT 1973

Pagination or Media Count : 13

Abstract : A simple approximation of the apex pressure differential is derived for single cell, natural shape balloons. For most present day balloons the approximation is valid up to at least tropopause heights. Use of the equation p = 0.93b2/3Wg1/3 (accurate to within 5 per cent) should provide an easy method for both designers and operators. (Author)

Descriptors :   *Balloons, Pressure, Inflatable structures, Tropopause, Experimental design, Formulas(Mathematics)

Subject Categories : Lighter-than-air Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE