15' Dia. - 008" thick polyethylene Balloon. H.A. Smith Inc. with reinforced blow out patches to vent gas when fired by B/S.
Baro-Switch set to deflate large Balloon should train descend to 10,000'.
6 each - General Mills Balloons, 200 cuft .001" polyethylene.
Payload in picture-frame mounting.
FIG. 44
2 ea. - Underinflated metro Balloons for Stadia measurements, 240' from center of small balloon to center of 15' balloon.
74.5 mc Radiosonde with 20' end fed Antenna. Black battery box wrapped in polyethylene.
Plastic ballast Reservoir contains 3000gm ballast Dribbler to have been activated by 45th contact on radiosonde.
NYU BALLOON PROJECT
FLIGHT 11A
Date 7-7-47 ED-48-41