Question: Who was the desiner for the further developments of Aquila which became 14-cylinder two-row radial aircraft engine?
Sentence (from "Pratt &amp; Whitney R-1830 Twin Wasp"): A total of 173,618 R-1830 engines were built, and from their use in two of the most-produced aircraft ever built, the four-engined B-24 heavy bomber and twin-engined DC-3 transport, more Twin Wasps may have been built than any other aviation piston engine in history.
Relevant evidence: No