Performance (w/ 600 hp engine)

Parameter

Value

Stall (at gross wt)

74 mph

Cruise (at 75% power)

289 mph @ 28.5 gal/hr

Top speed (level flight)

334 mph @ 38 gal/hr

Vne

flight tested to more than 350 mph indicated

Rate of climb

4320 ft/min at sea level

Max flap speed

150 mph

Max gear speed

130 mph

Range at cruise (68 gal std fuel, no reserve)

689 mi

Range at cruise (138 gal w/ aux tanks, no reserve)

1400 mi

Range at cruise (188 gal w/ aux & drop tanks, no reserve)

1900 mi

Service ceiling

29,400 ft

 

                            Specifications

Parameter

S51-D

P51-D

% scale

Wingspan

26'9"

37'

72.3

Washout

1.5 degrees

zero

 

Length

22'4"

32'

69.7

Height

9'4"

 

 

Empty weight

2400 lbs

 

 

Gross weight

3500 lbs

9000 lbs

38.9

Engine

V-8 (600 hp)

Merlin V-12 (1500 hp)

40

Wing area

123 ft^2

236 ft^2

52.1

Wing loading

28.4 lbs/ft^2 @ 3500 lbs

38 lbs/ft^2 @ 9000 lbs

74.7

Power loading

5.8 lbs/hp @ 3500 lbs

6 lbs/hp @ 9000 lbs

96.7

Fuel capacity (std)

68 gal

 

 

Fuel capacity (aux)

70 gal

 

 

Fuel capacity (drop)

50 gal

 

 

Seats

2 (tandem)

 

 

Controls

duel, no instruments in rear

 

 

Landing gear

retractable (electro-hydraulic)

 

 

Flaps

electric screwjack (0-40 degrees)

 

 

Tailwheel

locking (+- 6 degrees travel)

 

 

Propeller

Hartzell 4 blade constant speed, 92" dia

 

 

 

Engine Specifications (1)

Item

Description

Rotation

reverse (CCW viewed from the front as it would sit in a car)

Block

Iron or aluminum big bock Chevy, 9.8 or 10.2" deck

Bore

4.25-4.5""

Stroke

4.0-4.5"

Displacement

454-573 in^3

Compression ratio

8.5:1-10:1

PSRU

spur gear 2.13:1 w/ urethane biscuit damper

Flywheel

30-40 lbs, 152 tooth

Redline

4750 rpm (2230 rpm prop)

Cruise

approximately 3800 rpm (1780 rpm prop)

Max Power

400-600 hp @ 29" mp & 4750 rpm

Heads

Brodix BB1 OEFI (oval port)

Harmonic damper

8" Fluidamper

Rockers

shaft type (Jessel or K&D) roller

Lifters

soild or hydraulic roller

Camshaft

Crane solid or hydraulic roller

Fuel system

mechanical port injection (Airflow Performance FM-300 or FM-400, low profile manifold)

Fuel

100 LL or 92 octane pump gas

Accessories

belt driven or direct drive from crank and/or cam

Ignition

dual electronic or 1 electronic + 1 Vertex magneto

Oil system

dry sump

Fuel pump

rotary vane engine driven w/ electric backup

Prop governer

Hartzell F-6-72X

Cooling

water-glycol, 79-100 gal/min at 4750 rpm

Supercharger

normally asperated or normalized w/ Vortec V4-XX

Note (1) Engines were not sold with the S51 kits so the specifications vary among builders. Most fall into the ranges cited above. See the engine builders manual for details. The highest time S51 has about 200 hrs on it.

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