The Roswell Report: Fact vs. Fiction in the New Mexico Desert

Open Appendix 15' dia.-.008" thick polyethylene Balloon. H.A. Smith Inc. Reinforced blow-out patch to be opened by Time-clock. Bridle of 9 nylon lines, each 150# test, 13' long, served to a thimble and attached to reinforced patches at alternate seams. Payload in picture frame mount, and payload transmitter FIG. 42 74.5 mc. Radiosonde with 20' end fed antenna. Heavy duty batteries in black boxes, polyethylene wrapped. Plastic ballast Reservoir with 3,000 gr ballast. Pressure operated ballast valve (Dribbler) actuated by 30th contact of radiosonde baroswitch. NYU BALLOON PROJECT FLIGHT 10 Date 7-5-47 ED-48-42