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rojecting the Cransducers suc cn dscns ehich, when closet,
aicsectisn circumference.
ee
ew ww ee
Se
eed Ses Sloop ei cce =
:ormd arcs of tre
Deo such Jcors were used directly: cppesite eaca
otser on a circusferesce ami each projected one set of transducers.
Toes the
Statica TX*205 rocket uses a estal of six calorimeters and reguirecd caly one
Freatoue circuit and one Ceiezecering subchannel.
A second sudchunadl sas used
ior bacaup, since it was availabie.
The instmment ports of the Station TK-252 rocket were kept cwered ani
the projecting doors of the Station 209 racket were kepe closed 5: tight spring-
steel beles.
The belcs were released at predeterained aleitudes by seans of
sguib-fired retaining boles.
2.2.3
Operational Probleas
Teo problems conceraizg these instmments were revealed in Tooopah test
firings involving one of each cype of carrier vehicle.
In che case of the.
€52,000-foot rocket, it was outed that che temperature of the theraal ratistioa
calorimeters rose approximacely 40 degrees Centigrade above ambient upon iznition of che second stage.
An examination of the geometry involved showed thac
upon assembly of che vehicle a portion of the second-stage igniter protrided
into the instruvented sidsection and was free to radiate heat into the base
of these calorineters.
The instrumented Teak flights showed that corrective
measures taken to elininate radiation beating helped only slighely.
be assumed thac this trouble arose from another cause.
Ie suse
Evidence of bot iszniter
gases leaking into che aidsection compartment of a rad-chea sazpler recovered
from the Teak shot has caused some speculacion thac this could have caused the
trouble in the instmmented aidscctions.
In the Tonopah teste of the 209,000-fouor rocket, it was found that, in
asse=bling the vehicle for firing, che instrument doors were used as access
ports to facilicace the sasing of mechanical couplings.
It has been established
that one or more lead wires were severed because of this situation, Sut tne dirficulty was eliminated dy placing the lead wire connectors inside a protective
alisisua box.