On February 13, 1917, he flew an N-9 over the Gulf of Mexico off Pensacola, Florida, and began attempts to loop it. He succeeded on his fourth try, becoming one of the first persons ever to loop a seaplane (the first pilot to loop a seaplane was Polish aviator Jan Nagórski on 17 September 1916 in Grigorovich M-9 flying boat).
On February 13, 1917, he flew an N-9 over the Gulf of Mexico off Pensacola, Florida, and started practicing a loop with it. He succeeded after four attempts, becoming one of the first people to successfully perform this maneuver in a seaplane (the first pilot to achieve this was Polish aviator Jan Nagórski on 17 September 1916 in Grigorovich M-9 flying boat).