Correction: the stabilator (all-flying tailplane) dates back to at least pre-WWII. The de Havilland DH.77 fighter with stabilators was offered to the RAF in 1929.
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A stabilator is a ten letter word for an aircraft's climb control device. A Beechcraft P35 Bonanza has such device which is a mix of a vertical stabilizer and an elevator.
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In most aircraft it's undertaken by the yoke being pushed
forward for nose down and pulled back for nose up