Flight 52: Released from Alamogordo, New 1~xico, 0958 MST, April 23, 1948
Recovered at Galseburg, Kansas
On this flight a .001" polyethylene balloon carried the first model of
the Lange Barograph and an tmproved Olland-cycle pressure modulator to give
tmproved radiosonde pressure data. 1.he signal from the radiosonde was lost
soon after the release, but the barograph was recovered and the altitude
record is shown in Figure 17. It will be seen that the balloon rose~ a
' .. --------- r- .....,
..:. Pon"'m j"'.,.._" k '~I I
tO~ ·or.t: ~~_;,.... . Data missing ~ -
./-JI" IN
11::
.; J Clock stepped l'e
t!-8 I . · I I 1c I Rote of 8olcu.t,.oWtOIQO,_J11
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I
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,_ (lCD
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t
::3
·~I H~ghHime .f.u:ve I
I fliGHT 52 I
( ! Released otAiamoqordoN.M. I
April23-a~ o35a M.S.T. ! IRecovered atGalestug,t<ons. :
2
- ) h ...n e'lferecl Cl ud~ (Barograph "iace Data) Ii
f
I------
- I f i
I I
i ! l
I
I: '. I +----r ! ·-:-- - - t· ;
---· . -··-,··.
l
I I _I :
I i I ___...., I I
Tme ( M.S.T.) ; Tune unknown 10
1000 100 liiOO 1300 1400 1100 ~ rruu
Figure 17
pressure such that the barograph pen passed oft the chart, and several hours
or flight were not recorded. The slowly rising ceiling seen here was the
firstlong-period confirmation of the expected behavior of a balloon con-
trolled by a constant ballast loss. The flow in this case was set for about
250 grams per hour, and the altitude change was about 400 feet per hour.
This rise of "ceiling" is somewhat larger than predicted and heightened
the interest in obtaining temperature measurements so that the buoyancy be-
havior could be more exactly- determined.
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