The Hamilcar was the largest wooden aircraft ever built in Britain and like all the British assault gliders it was mostly commercial grade plywood not marine or aircraft grade. the majority of what little metal it did have was stainless steel.
Here are some pages from the Air Publication and a couple of interesting pictures. The slightly bent! Hamilcar wsa the result of a overly fast landing at RAF Tarrent Rushton, The Tetrach tank, who's turret can be seen was the cargo (and manned at the time of the crash
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