“Pound”31 pages
- p. 28 …In all, he estimated, the
entire lot would have weighed maybe five pounds. There was no…
- p. 231 …It was
like a 500 pound rack with a receiver, frequency meter, recorder,
etc., and we…
- p. 233 …About one pound.
A: correct. And the targets are nominally maybe a quarter
of a pound…
- p. 238 …They went
and got a whole bunch of soo pound bombs out of the Earl
Ammunition…
- p. 258 …Third balloon with two and a half pound stick of TNT and cap set
by pressure…
- p. 263 …releasing
something like maybe several hundred 500 pound bombs for this.
At the same time, Trakowski…
- p. 323 …I 4 inches wide, and weighing 13
pounds (Atch 4). The sonabuoy contained both the acoustical…
- p. 379 …have weighed maybe five pounds.
rancher living 30 mlles south. east bright wreckage made up on…
- p. 408 …six (6) scientists and twelve (12) thousand pounds of' equipnent from BElliAR,
NEV; JERSEY to KWAJALErn…
- p. 475 …Dry ice consumption at -GOOF is approxi-
mately 150 pounds for a 24-hour period.
It…
- p. 483 …is free lift in pounds
and G is gross lift in pounds.
Although this equation was…
- p. 536 …New Mexico
In this flight, a 65-pound load was lifted with a linear array of…
- p. 538 …and
tour larger lifting balloons, a 53-pound load was carried alott on this flight.
At…
- p. 542 …wall) to
lift • total load of S5 pounds as high aa posaible (Figure 7). 'lbe small…
- p. 588 …the
AM-1 transmitter (with about 10 pounds of batteries) was received for about
400 miles…
- p. 608 …Buoyer.cy per Pound Mol of GaS••••••••••••••••••••••••••••••••l6
V. Glossary of Term•••••••••••••••••••••••••••••••••••••••••••••21
VII. Summary of…
- p. 614 …foot balloon should be held tinder 30 pounds; 2) ratEBot
rise should be less than 900…
- p. 621 …of 50,000 feet, with a
30-pound payload, risea about 900 feet with each kilogr…
- p. 641 …Given: (l) The pound molar volume of any gas at standard
conditions=359 ft. 3
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- p. 642 …2370 fte3
273.2 126
This is the mean pound molar volume at 15 km for…
- p. 643 …foot diameter,
at an altitude where the pound molar volume is 1000 ft. 3 (This is…
- p. 715 …Suspended
from the balloon is a 100 foot one thousand pound test nylon line which carries…
- p. 736 …The solid-ballast system was complex; approxi-
mately 900 pounds of sand was used on each…
- p. 737 …It
has an ultimate tensile strength of 1,900 pounds per
square inch at 2SC, which…
- p. 780 …for attaching rigging lines supporting a
~5-pound load to bottom of balloon ~nd means for…
- p. 862 …Yii th a 20•foot General Mills balloon, using helium, a
payload of 40 pounds will…
- p. 868 …Thus, if a 40-pound load is to be lifted, it is
not safe to use…
- p. 889 …This is the volume of a pound mol of any gas at those condi-
tions.
By…
- p. 893 …Elliptical shot bags, weighing 100
pounds,are used to hold the base of the bubble to…
- p. 907 …using
15 pounds (7 kilograms) of batteries. Longer periods
of transmission may be achieved by intermittent…
- p. 984 …The detonation, or "shot" (right), of 500 pounds of TNT
was monitored at White Sands Proving…
10 16 16
From this survey and a study or aerostatics, ' ' it appeared that
a non-extensible balloon is highly desirable due to the vertical stabili~
exhibited when such a balloon is full of the lifting gas a A non-extensible
balloon with 'no diffusion or leakage through the walls, which could withstand
a high internal pressure, would automatically remain at the densi~ where
the buoyancy of the fUll balloon equaled the load. In practice, control
devices are needed to offset tqe leakage and diffusion of the lifting gas
and to correct for the motion or the balloon due to diurnal changes or
the balloon's temperature and to correct for vertical wind currents in the
atmosp~ere. It was decided to use a pleatio a• the balloon fabric, since
available plastios have suitable characteristics, and are also relatively
inexpensive as compared to coated fabrics.
The desirable properties to be considered in the selection of a
plastic balloon material area
a. Ease of fabrication
b. High tear resistance
o. Light weight
d. High tensile strength
e. Chemical stability
f. Law permeability
g. Low brittle temperature
h. High transparency to heat redie.tion
Table I is a qualitative-characteristics catalog of the film and
fabrics investigated. The date in the table are presented as approximations
because of the great variations of a given prbperty with choice of samples
and test methods. From this study, polyethylene, nylon, saran, and neoprene-
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