Just an idea to add a pretty interesting aircraft that was almost put into service.
The Fisher P-75 Eagle was an American fighter aircraft designed by the Fisher Body Division of General Motors. Development started in September 1942 in response to United States Army Air Forces requirement for a fighter possessing an extremely high rate of climb, using the most powerful liquid-cooled engine then available, the Allison V-3420.
In mid-1943, the need for long-range escort fighters became more urgent than fast climbing interceptors and the Army Air Forces had decided to limit the number of combat aircraft types in production and not enter into large-scale production of new types that might not be available before the war ended. As the twin-engine Lockheed P-38 Lightning and North American P-51 Mustang demonstrated excellent long-range capabilities, the production run of the P-75A Eagle was subsequently terminated on 6 October 1944.
Specifications (XP-75)
General characteristics
Crew: 1
Length: 40 ft 5 in (12.32 m)
Wingspan: 49 ft 4 in (15.04 m)
Height: 15 ft 6 in (4.72 m)
Wingloading: (Empty) 30.653 lb/sqft
Wing area: 347 sq ft (32.2 m2)
Airfoil: root: NACA 2215; tip: NACA 2209
Empty weight: 11,495 lb (5,214 kg)
Gross weight: 19,420 lb (8,809 kg)
Max takeoff weight: 18,210 lb (8,260 kg)
Powerplant: 1 × Allison V-3420-23 24 cylinder coupled V-12 liquid-cooled piston engine, 2,885 hp (2,151 kW)
Propellers: 6-bladed contra-rotating propeller
Just to let yall know, this planes engine is insane, they literally took 2 Allison V-1710's (engine found in the P38, P40, P63 etc) and welded them together, making a 24 cylinder coupled V12, with a displacement of 56 liters, this monster of an engine is huge, making the engine found in the P47 (Pratt and Whitney R-2800, 46 liters) look small.
Hopefully you guys enjoyed this very underated aircraft, thanks for reading