![]() | Gyrodyne GCA-2A "Helidyne" 1949 | ![]() |
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The GCA-2 helicopter was modified to become the GCA-2A Helidyne, with twin 100hp Continental auxiliary engines mounted externally on strutted outriggers to give additional forward speed. It flew in this form on 30 November 1949. R.Simpson "Airlife's Helicopter and Rotorcraft", 1998
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