“The Sun”32 pages
- p. 43 …to the sun for only a few days. The
plasticizers and antioxidants in the neoprene would…
- p. 205 …ashes after exposure to the sun for only a few days. The balloon material and radar…
- p. 221 …to the sun.
Q: Is this the neoprene type or the •••
A: That's the neoprene…
- p. 230 …such as
the balloon material degraded, and maybe fused in the hot sun?
14
A: I…
- p. 282 …We worked in the old Sun newspaper building in downtown Baltimore.
Q: They had intelligence personnel…
- p. 465 …the values of superheat ob-
tained by the gas when the balloon is in the sun…
- p. 484 …Superheat and Its Effects
The effect of the heatin~ of lifting gas by the sun's…
- p. 489 …Since the effect of the sun in heating the lifting gas decreases
the effect of different…
- p. 524 …when the ex-
ternal temperature was measured, since no adequate protection from
the sun was available…
- p. 525 …Daytime flights had the added advantage or heating from the sun.
The temperature of the lifting…
- p. 541 …in the aneroid
val~e as intermittent clouds shut off' the sun, and (3) the overcompensation…
- p. 547 …stmset, and the
balloon took on superheat whioh was lost_when the sun went down. ntis…
- p. 558 …the transmitter was not insulated, and there was no heat to be gained
.from the sun…
- p. 570 …Since the sun had set between the third and
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- p. 579 during the sunset descent (caused when the superheated helium lost the sun's
heating ei'i…
- p. 591 …that seen earlier with the balloon gas being warmed by the sun to acquire
a superheat…
- p. 666 …the changing buoyancy of the balloon as cloud
masses intermittently shielded it from the sun's…
- p. 736 …the
subst;q.uent descent, superheating of the balloons by
the nsmg sun would cause the…
- p. 739 …Flight termination was usually due to deteriora-
tion of the balloon caused by the sun.
In…
- p. 740 …the ambient tem-
perature after the sun had risen.
The automatic ballast valve operates. when the…
- p. 801 …April 14 Sun. Down to lab this am with Joe looking for G9A files. Jim Peoples…
- p. 802 …Discussed with Crane possibilities of getting sound through the ground part
of the ocean sound channel…
- p. 803 …Over to Jim and Rowes tonight and to Euzzards Bay bowling,
l'ay 5 Sun. L…
- p. 806 …Stayed at Amarillo -
at Clinton Hotel
Jan 19 Sun Left Amarillo about 1130 CST
IC.ent…
- p. 808 …Correlated between the ~ower and Dona
sites for se·reral sources. 'o!orked total travel times…
- p. 810 …April 6 Sun. Checked clocks. Cleaned out hanger and emptied trash out at East White Sands…
- p. 811 …April 20 Sun. Worked on plans for bombing runs and V2 monitoring.
April 21 Mon. Alamogordo…
- p. 812 …All equipment loaded on plane this pm.
~ay J-4 Sat, Sun. Left Alamogordo about 9…
- p. 815 …29 June (Sun) NYU personnel and some of Watson Lab men working today with equipment in…
- p. 816 …July 1a Sun. to cabins in Ohio just out of Springfield.
July 1 Mon. To cabins…
- p. 852 …4C.~~~ies• .tJi~J.tl~e ..•
a 'telemeteririg ·device to indicate· the rate of ballast flow…
- p. 861 …a sun-
set.
(3) By adding altitude control equipment, it is possible
to maintain the balloon…
Fligllt 6~z Released from Alamogordo, New Mexico, 1116 MST, Kay 13, 1948
Descended at Alamogorde, New Mexico
On thie flight: a Seyi'ang X..boratories balloon, made of neoprene-coated
nylon, was flown with a valve in the appendix set to open after an internal
preesure of 0.02 psi was built up. On an earlier flight (59) such a bal-
loon wa.s flown with no valve but an appendix held closed w11h a rubber
banda it ruptured upon beooming.i'ull.
Both a constant ballast-flow orifice and an automatic ballast control
were used to keep this balloon buoyant. In addition to the ballaet, a
surplus of buoyancy might have been acquired when. super 'Pressure wai built
up inside the cell. Despite these controls, the ballom began to descend
after a short period ot tloating, and its descent was not checked (Figure 24).
RELEASED liT ALAMOICIIIOO,N.M
· MAY 11- ... -maMSt
-;--h,__+-1 REcow!IIEDIIr MAYNILL,N.M.
MAY ··---11141MSI:
TINr(MST.)
1100 lila 1110 IMI 11110 M .IUO 11411 1!00 1111 15!0 13411
Figure 24
An analysis of the acceleration which could be gained from a loss of super-
heat indicated that if the coated fabric had absorbed radiation and gained
60°C crver t,Jle outside air, the superheat thus obtained would be so great
that its subsequent rapid loss (as by ventilation) could not be compenu.ted
for even with the be:'llast flowing at full rate. To improve the analysie
of balloon flights, a measure of the temperature difference between lifting
gas and air temperature was suggested.
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