“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
- 15 -
- 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…
(a)
Then:
(9)
or for small temperature differences:
(10) : - _L (.AI.)1-B T
the nega,tive sign indicating a loss of lift.
From this equation we may approximate the amount of ballast re-
quired to compensate for the loss of superheat of the lifting .gas.
It is apparent, then, that the amount of superheat gained or lost
by a balloon 1 s ga• is of extreme importance to the control of the
,,_ight.
For this reason a transparent film has a definite advantage over a
reflecting fabric. For example, alumin~coated fabric balloons
floating at 40,000 feet have exhibited lifting gas superheat in
the neighborhood of 40°C.* Polyethylene balloons, on the other
hand, Show superheat of approximately lOOC under the same conditions.
Assuming a total weight of 30 kilograms in the balloon system, with
helium as the lifting gas ~ B ~ t ), the following compensation
at sunset, or when superheat is lost, will be necessary:
Aluminized fabric:
Polyethylene'
AI:. -L -
-- 4.7 OJo
*This will explein the repid descent of flight with fabric balloons and
will show the need for high ·rates of ballast flow at sunset with poly-
ethylene balloon flig,hts (see Part III., "Summary of Flights," of this
report).
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