The Murphy SR3500 Moose is a STOL aircraft capable of operating from wheels, floats or skis. Featuring all metal construction, the pre-formed and pre-punched parts suit the first time builder.
The empty weight of the SR 3500 was increased 2% over the SR 2500 Super Rebel to prepare it structurally for more powerful engines, speed increase, and a 17% payload increase. Most of the changes are to the outside of the structure, including doublers added to the wing and horizontal stabiliser roots. A stronger set of rudder and elevator horns and the undercarriage has been strengthened. The structure was stactically loaded to 8400 lb on each wing (5.3G) and the torsional load tests were equivalent to a 220 mph dive with a 4 G pull-up with full aileron deflection.
Turbine Moose
When powered by a 360 hp Russian radial, a gearbox allows the engine to run at 2950 rpm while the propeller turns at 1940 rpm. Typically producing 390 hp, the prop diameter is 98 in. Murphy Moose Engine: Lycoming O-540, 250 hp Power Loading: 14.0 lb./hp Gross weight: 3500 lb Empty weight: 1650 - 1800 lb G-loading (normal): +5.7 -3.8 Power range: 250 - 360 hp Wing span: 36' Length: 23' Fuselage width: 44" Wing chord: 60" Tail span: 130" Tail chord: 33.5" Airfoil: 4415 (Modified) Flap area: 22.5 sq. ft Flap reflex: 5 Flap droop: 40 Aileron area: 25.5 sq. ft Aileron reflex: 5 Aileron up deflection: 20 Aileron down deflection: 12 Useful Load: 1750-1850 lb Wing Area: 182 sq.ft Wing Loading: 19.2 lb./sqft Rate of Climb: 950 ft/min Take Off Run: 800 ft Landing Roll: 600 ft Stall (no flap) Power off: 64 mph Stall (full flap) Power off: 58 mph Cruise (70% Power): 143 mph Vne: 189 mph Top Speed: 155 mph Fuel Burn: 14.1 USG/hr Fuel Capacity: 60 USG Endurance: 4.3 hr Range: 610 statute miles Murphy Moose Engine: M-14P, 360 hp TBO: 1500 hr Gross weight: 3500 lb Empty weight: 1650 - 1800 lb G-loading (normal): +5.7 -3.8 Power range: 250 - 360 hp Wing span: 36' Length: 23' Fuselage width: 44" Wing chord: 60" Tail span: 130" Tail chord: 33.5" Airfoil: 4415 (Modified) Flap area: 22.5 sq. ft Flap reflex: 5 Flap droop: 40 Aileron area: 25.5 sq. ft Aileron reflex: 5 Aileron up deflection: 20 Aileron down deflection: 12 Power Loading: 9.7 lb./hp Useful Load: 1800-1600 lb Wing Area: 182 sq.ft Wing Loading: 19.2 lb./sqft Rate of Climb: 1500 ft/min Take Off Run: 600 ft Landing Roll: 600 ft Stall (no flap) Power off: 64 mph Stall (full flap) Power off: 58 mph Cruise (70% Power): 150 mph Vne: 189 mph Top Speed: 175 mph Fuel Burn: 15 USG/hr Fuel Capacity: 80 USG Endurance: 5.3 hr Range: 795 statute miles Turbine Moose Engine: Pratt & Whitney PT6A-20 Wingspan: 37 ft 6 in Wing loading: 22.2 lb/sq.ft Fuel cap: 160 USG Max Gross Wt: 4000 lb Empty wt: 2795 lb Useful load: 1205 lb Seats: 4 Cabin width: 46 in Baggage cap: 250 lb Max ROC: 2000+ fpm Stall clean: 65 mph / 56 kt IAS Stall ldg config: 62 mph / 54 kt IAS Cruise: 180 mph / 157 kt @ 8000 ft @ 60% pwr Fuel burn at cruise: 34 USG/hr