File:Uldbmain.jpg

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Summary

Description
English: Super Pressure Balloon Demonstration Requirements
   * 1-ton instrument to 100 kft
   * 100-day flight goal
   * Little or no day/night altitude variation.
"Super pressure" means there is a higher pressure inside the balloon than outside. The super pressure balloons flown by the NASA program are essentially very large pressure vessels. At float altitudes the balloons have a very slight differential pressure compared to the ambiaent atmosphere. This positive pressure is on the order of around .0363 psi under the highest pressure loading. Most of the time it is much lower.
Date
Source NASA Wallops Flight Facility Code 820 Super Pressure, url=http://sites.wff.nasa.gov/code820/uldb.html
Author NASA Official: David L. Pierce, Curator: Brandon Wright
Permission
(Reusing this file)

Images from NASA usually are free of copyright.

Super-Pressure: Ultra Long Duration Balloon (ULDB) "Pumpkin".

Licensing

Public domain
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Date/TimeThumbnailDimensionsUserComment
current23:58, 2 December 2009Thumbnail for version as of 23:58, 2 December 2009250 × 426 (31 KB)Marshallsumter{{Information |Description={{en|1=Super Pressure Balloon Demonstration Requirements * 1-ton instrument to 100 kft * 100-day flight goal * Little or no day/night altitude variation. "Super pressure" means there is a higher pressure inside the

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