Thunder Mustang

Project launched by Dan Denney, the designer of the Kitfox. The company has long since closed its doors.

Powerplant Falconer V-12,  640hp Merlin V-1650-7, 1490hp
Displacement 601 cubic inches 1649 cubic inches
Propeller MT 94" 4-blade constant speed Hamilton Standard 134" 4-blade
Length 24.2 ft. 32.2 ft.
Frontal Area 8.1 sq. ft. 13.4 sq.ft.
Wing Span 23.8 ft. 37.0 ft.
Wing Area 104 sq. ft. 237.75 sq.ft.
Wing Loading 28.84 lbs/sq.ft. 49.2 lbs/sq.ft.
Power Loading 4.69 lbs/hp 7.78 lbs/hp
Gross Weight 3200 lbs 11600 lbs
Empty Weight 2200 lbs 7635 lbs
Useful Load 1000 lbs 3965 lbs
Payload w/full Fuel 400 lbs 2885 lbs
Basic Fuel Capacity 102 gallons (in wings) 180 gallons (in wings)
Baggage Capacity 50 lbs N/A
Design Limit Load Factor +9g @ 2600 lbs +7.3 g @ 3200 lbs +8g @ 8000 lbs +5.5 g @11600 lbs
-6g @ 2600 lbs -4.9 g @ 3200 lbs. -4g @ 8000 lbs -2.8 g @11600 lbs

Performance

Rate of Climb @ gross 5200 ft/min 2800 ft/min
Maximum Level Speed @ Sea Level 326 kts (375 mph) 326 kts (375 mph)
 
380 kts (437mph @ 25000ft.)
Cruise Speed @ 75% Power 300kts (340 mph) 250 kts (300 mph)
22-25 gph 50-75 gph
Range 1300 naut. mi. 700 naut. mi.
Service Ceiling 25,000 ft. 46,000 ft.


Limiting and Recommended Airspeeds

Vx (best angle of climb) 87 kts 87 kts
Vy (best rate of climb) 156 kts 148 kts
Va (design manoeuvring) 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) 77kts 92 kts
Vso (stall, in landing config.) 68 kts 88 kts
Best Glide 153 kts 152 kts