Question: Which engineer born on May 16, 1899 helped develop the first truly successful V/STOL design of aircraft?
Sentence (from "Roy Chaplin"): Roland Henry Chaplin, OBE, FRAeS, (16 May 1899 – 13 December 1988), known as "Roy", was an aeronautical engineer who worked with Sydney Camm at Hawker Aircraft Limited from 1927 to 1962.
Relevant evidence: Yes