it is dark, and it is red to denote danger to passengers un-familiar with its use. After the panel is stitched over the aper-ture, the stick in the loose flap at the upper end is lightly tiedto the corresponding stick in the envelope, so as to hold it uiposition, but allow it to be pulled away when… … Figure 5arranging balloon prepar.atory to inflating sure he is going to land in the right place, then just before thecar touches the ground he pulls the ripping cord and rips thepanel out. This allows the gas to escape from the envelope withsuch rapidity that it is entirely empty in thirty seconds.…
Aeronautics
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