Specs

Specifications

Norseman dimensions, weights and specifications

Dimensions & Weights

	Mk l	Mk ll	Mk lll	Mk lV	UC64/Mk Vl	Mk V
Wing Span	51 ft. 6 in.	51 ft. 6 in.	51 ft. 6 in.	51 ft. 6 in.	51 ft. 6 in.	51 ft. 6 in.
Wing Chord	7 ft. 3 in.	7 ft. 3 in.	7 ft. 3 in.	7 ft. 3 in.	7 ft. 3 in.	7 ft. 3 in.
Length Wheels	32 ft.	32 ft.	31 ft. 6 in.	31 ft. 6 in.	32 ft. 4 in.	32 ft. 4 in.
Empty Weight Wheels	3380 lbs.*	3450 lbs.*	3458 lbs.*	3675 lbs.*	4860 lbs.*	4200 lbs.*
Gross Weight Wheels	6050 lbs.	6235 lbs.	6235 lbs.	6450 lbs.	7400 lbs.	7400 lbs.
Empty Weight Floats	3850 lbs.*	3850 lbs.*	3956 lbs.*	4173 lbs.*	5100 lbs.*	4620 lbs.*
Gross Weight Floats	6050 lbs.	6235 lbs.	6235 lbs.	6450 lbs.	7400 lbs.	7540 lbs.

*Weights are for Freighter Version, without passenger seats, without radio, with wing tanks only.

Performance

Engine

Wright

R975-E3

Whirlwind

Wright

R975-E3

Whirlwind

P & W

R1340-SC-1

Wasp

P & W

R1340-S3H1

Wasp

P & W

R1340-S3H1

Wasp

P & W

R1340-AN1

Wasp

Take off HP

450

550

600

Maximum Speed

Wheels	160 mph	160 mph	165 mph	160 mph	162 mph	165 mph
Skis	148 mph	148 mph	N/A	155 mph	156 mph	160 mph
Floats	146 mph	146 mph	150 mph	145 mph	148 mph	160 mph

Cruise Speed

Wheels	140 mph	140 mph	145 mph	150 mph	144 mph	141 mph
Skis	132 mph	126 mph	N/A	135 mph	142 mph	138 mph
Floats	125 mph	125 mph	130 mph	135 mph	130 mph	134 mph

Stall Speed - Full Flap

Wheels	53 mph	55 mph	N/A	55 mph	68 mph	68 mph
Skis	53 mph	55 mph	N/A	55 mph	68 mph	68 mph
Floats	53 mph	55 mph	N/A	55 mph	69 mph	69 mph

Construction

Wings

Strut-braced, fabric covered, two-spar wood construction with NACA 2412 airfoil spruce ribs, internally braced with steel tubes and drag wires. Leading and trailing edges aluminum covered. Ailerons and flaps, both Handley Page slotted type, of welded steel tube construction with fabric covering. Except for Mk V, ailerons interconnected with flaps to droop to 15.5 degrees with flaps, retaining full differential movement. Flaps alone drop to 40 degrees.

Fuselage

Welded steel tube truss structure faired with steel tube frames and spruce stringers. Forward fuselage and under section to back of cabin aluminum covered.

Empennage

Fin, rudder and elevators of fabric covered welded steel tube construction. Fixed, ground adjustable trim tab on rudder and controllable trim tabs on elevator. Stabilizer of fabric covered spruce construction with steel tube and drag wire internal bracing. Braced to fin and fuselage with double streamlined wires.

Landing Gear

Main Wheels

31inch diameter tires on cantilever oleo-pneumatic shock absorber legs, with hydraulic brakes.

Tail Wheel

13.5 inch diameter tire on oil dampened, spring action, cantilever strut.

Floats

Edo, type YA, 6235 lb buoyancy, on Mk I & Mk II. Edo type Yd, 6470 lbs buoyancy, on Mk III, Mk IV and Mk VI (& early UC-64). Edo type 55-7170A, on UC-64 and Mk V.

Accommodation

Pilot and copilot or passenger, side by side in cockpit. Throw-over control column, or dual Y-type wheel control column (Mk VI only). Provision for up to 8 passengers on bench seats in heated cabin. Provisions for 4 litters in UC-64 and Mk V aircraft.