The Aero Spacelines B-377PG Pregnant Guppy was flown to Dryden for tests and evaluation by pilots Joe Vensel and Stan Butchart in October 1962.
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The Aero Spacelines B-377PG Pregnant Guppy was flown to Dryden for tests and evaluation by pilots Joe Vensel and Stan Butchart in October 1962.October 1962NASA Photo / NASA photo› Guppy Project Description