The XP-10 (S/N 28-387), like the XP-8, used an unusual design feature to attempt to overcome the drag penalty imposed by a large radiator scoop. The XP-10 radiator was a flush-mounted brass sheet attached to the upper wing. Engine cooling water flowed through channels in the sheet. The design, which never entered production, was plagued by mechanical and technical problems. The flush-mounted radiator was deemed to vulnerable to enemy gunfire and was never used on a production pursuit aircraft.

TYPE
XP-10 Number built/Converted
1 Remarks
Radiator in upper wing
SPECIFICATIONS
Length: 24 ft. 6 in.
Span: 33 ft. 0 in.
Height: 10 ft. 10 in.
Engine: Curtiss V-1570-15 "Conqueror" of 600 hp.
Maximum speed: 173 mph
Maximum weight: 3,700 lbs


Curtiss V-1570 "Conqueror" Engine
The Curtiss Aeroplane and Engine Co. began producing its famous Conqueror engine in 1926. Although similar in general principles of design to the earlier Curtiss D-12 engine, the Conqueror was larger and more powerful. Originally rated at 600 hp., the engine's performance in several later versions was improved to 675 hp. In the late 1920s and early 1930s, the V-1570 Conqueror was selected to power the Curtiss P-6 series "Hawk" aircraft as well as various other Air Corps types including the A-8, B-2, B-7, O-25, and P-16. After 1935, the Conqueror was superseded by more advanced liquid-cooled engines.

SPECIFICATIONS:
Model: V-1570-59
Type: 12 cylinder, liquid-cooled, Vee
Displacement: 1,570 cu. in.
Maximum Horsepower: 675
Max. RPM: 2,450
Cost: $7,500