Only two built for the US Navy, 75725 and 75726
295 hp Lycoming R-680-10. One was tested with 350 hp Lycoming GSO-580.
Also tested by the USAAF as a T-31A, but lost out to the Beechcraft T-34.
The following two photos are of the first XNQ-1, 75725.
Aeroplane Photo Supply No. 4497
Aeroplane Photo Supply No. 4496