The Thunder Mustang is a modern replica of the P-51 Mustang

P-51 Mustang

The North American Aviation P-51 Mustang was an American long-range, single-seat fighter and fighter-bomber used during World War II, the Korean War and in several other conflicts...

 and has joined the ranks of the high performance P-51 kits alongside the all-aluminum Stewart S-51D and the full-scale, turbine powered Cameron and Sons P-51.

The Thunder Mustang is currently in renewed production stages. Production ceased in the fall of 1999. The Thunder Builders Group LLC owned the assets required to manufacture the airplane in September 2010, when they sold the assets to Dean Holt of Mount Vernon, Washington.
Dean is currently in the process of manufacturing all the necessary components for complete kit offerings which will be available in late fall 2011.

There were a total of 37 complete or partial kits produced including the prototype. Of these 37, 27 were delivered as complete kits including the Falconer engine. Two have Walter turbines installed and presently flying.

Four Thunder Mustangs have competed at the Reno Air Races. John Parker has recorded lap speeds of more than 355 mph on the racecourse using the normally aspirated Falconer engine. George Giboney posted lap speeds of 397 mph with his supercharged version of the Falconer engine during the 2010 races with level flight top speed of more than 415 mph.

Specifications	Thunder Mustang	North American P-51D Mustang
Powerplant	Falconer V-12, 640 hp	Merlin V-1650-7, 1490 hp
Displacement	601 cu in	1649 cu in
Propeller	MT 94" 4-blade constant speed	Hamilton Standard 134" 4-blade
Length	24.2 ft (7.4 m)	32.2 ft (9.8 m)
Frontal Area	8.1 sq ft (0.752514624 m²)	13.4 sq ft (1.2 m²)
Wing Span	23.8 ft (7.3 m)	37 ft (11.3 m)
Wing Area	104 sq ft (9.7 m²)	237.75 sq ft (22.1 m²)
Wing Loading	28.84 lb Pound (mass) The pound or pound-mass is a unit of mass used in the Imperial, United States customary and other systems of measurement... /sq ft	49.2 lb/sq ft
Power Loading	4.69 lb/hp	7.78 lb/hp
Gross Weight	3200 lb (1,451.5 kg)	11600 lb (5,261.7 kg)
Empty Weight	2200 lb (997.9 kg)	7635 lb (3,463.2 kg)
Useful Load	1000 lb (453.6 kg)	3965 lb (1,798.5 kg)
Payload w/full Fuel	400 lb (181.4 kg)	2885 lb (1,308.6 kg)
Basic Fuel Capacity	102 gallon Gallon The gallon is a measure of volume. Historically it has had many different definitions, but there are three definitions in current use: the imperial gallon which is used in the United Kingdom and semi-officially within Canada, the United States liquid gallon and the lesser used United States dry... s (in wings)	180 gallons (in wings)
Baggage Capacity	50 lb (22.7 kg)	N/A
Performance
Rate of Climb @ gross	5200 ft/min	2800 ft/min
Maximum Level Speed @ Sea Level	326 kts (375 mph)	326 kn (375 mph) 380 kts (437 mph @ 25000 ft)
Cruise Speed @ 75% Power	300 kts (340 mph)	250 kts (300 mph)
Fuel Consumption	22-25 gal Gallon The gallon is a measure of volume. Historically it has had many different definitions, but there are three definitions in current use: the imperial gallon which is used in the United Kingdom and semi-officially within Canada, the United States liquid gallon and the lesser used United States dry... /h	50-75 gal/h
Range	1300 NM Nautical mile The nautical mile is a unit of length that is about one minute of arc of latitude along any meridian, but is approximately one minute of arc of longitude only at the equator...	700 NM
Service Ceiling	25000 ft (7,620 m)	46000 ft (14,020.8 m)
Limiting and Recommended Airspeeds
Vx (best angle of climb)	87 kts	87 kts
Vy (best rate of climb)	156 kts	148 kts
Va (design maneuvering)	222 kts	226 kts
Vfe (max flaps extended)	165 kts	143 kts
Vle (max landing gear extended)	148 kts	148 kts
Vne (never exceed)	439 kts	439 kts
Vsl (stall, clean)	77 kts	92 kts
Vso (stall, in landing config.)	68 kts	88 kts
Best Glide	153 kts	152 kts