Being a fan of 75mmm cannon equipped plnaes and above, thought this one shd have a go!
https://en.wikipedia.org/wiki/Curtiss_XP-71Source:
https://tvd.im/aviation/618-curtiss-wright-xp-71.html[code]General characteristics
Crew: 2
Length: 61 ft 10 in (18.85 m)
Wingspan: 82 ft 3 in (25.07 m)
Height: 19 ft 0 in (5.79 m)
Wing area: 602 sq ft (55.9 m2)
Empty weight: 31,060 lb (14,089 kg)
Max takeoff weight: 46,950 lb (21,296 kg)
Powerplant: 2 × Pratt & Whitney R-4360-13 Wasp Major 28-cylinder air-cooled radial piston engines, 3,450 hp (2,570 kW) each
Performance
Maximum speed: 428 mph (689 km/h, 372 kn) at 25,000 ft (7,600 m)
Range: 3,000 mi (4,800 km, 2,600 nmi)
Service ceiling: 40,000 ft (12,000 m)
Time to altitude: 25,000 ft (7,600 m) in 12 minutes 30 seconds
Wing loading: 51.6 lb/sq ft (252 kg/m2)
Power/mass: 0.147 hp/lb (0.242 kW/kg)
Armament
Guns:
1× 75 mm (2.95 in) cannon
2× 37 mm (1.46 in) cannon
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http://aviationtrivia.blogspot.com/2011/12/massive-curtiss-xp-71-fighter.html