01/31/2010. Remarks by Johan Visschedijk: "The final five aircraft (s/n 25-420 to 25-424) built against the initial P-1 contract were fitted with the 510 hp Curtiss V-1400 (D-12) engine and delivered early in 1926 as P-2s. The first of these (s/n 25-420), initially flown in December 1925, was experimentally fitted with a side-mounted turbo-supercharger which increased the P-2' s absolute ceiling from 22,980 ft (7,005 m) to 32,790 ft (9,995 m), it was redesignated XP-2.

Three P-2s were subsequently converted to P-1A standard for squadron service. A fourth was fitted with the Curtiss V-1570 Conqueror engine of 600 hp as the XP-6 to participate in the 1927 National Air Races, in which it placed second, achieving 189 mph (304 kmh).

The probe seemingly fitted to the propeller is in fact a long boom (part of test equipment) fitted to the bracing strut of the left wing, not to the propeller."

Span: 22 ft 10 in (6.96 m)
Length: 22 ft 10 in (6.96 m)
Height: 8 ft 7 in (2.62 m)
Wing area: 250 sq.ft (23.23 sq.m)
Weight empty: 2,081 lb (944 kg)
Loaded weight: 2,869 lb (1,301 kg)
Max speed: 172 mph (276 kmh) at sea level
Climb: 2,170 ft (661 m)/min

Read the type remarks on page 11581.