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The commissioners strongly recommended safety improvements, starting with easy access to emergency hatches. Balloons of the late 1930s were equipped with large parachutes capable of safely carrying the detached gondolas; another proposal, integrating airtight gondolas into detachable gliders, was tested and discarded.[1] VR60 Komsomol (1939) had another safety feature: in case of abnormally rapid descent its balloon was designed to flatten into a gigantic parachute canopy.[2]