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Wittman W.8 Tailwind / W-9L Tailwind / W.10 Tailwind

W.8 Tailwind

The Tailwind (prototype N37SW) W-8C, a two-seat high wing monoplane, built and first flew in 1953. So successful was this aircraft that plans were made available to amateur builders.

The Tailwind is a side by side, two seat, high wing, strut-braced, cabin monoplane. The wing consists of two separate panels, each incorporating wooden spars and ribs, internal wire bracing and plywood covering. An NACA 4309 aerofoil section is used. The ailerons and flaps are of steel tube construction, and are fabric covered. The fuselage is a chrome molybdenum steel tube structure, and is fabric covered. A cabin door is incorporated in each side. The empennage, like the fuselage, is built up of welded steel tube, and is fabric covered. The main undercarriage incorporates round spring steel main legs, and 500 x 5” wheels. The wheel track is 5’ 5”. A 20 Imp. gallon fuel tank is installed in the fuselage behind the firewall.

The W-8L Tailwind, powered by a Lycoming engine, was built in 1954. Revisions have been made to allow the use of the 150-hp Lycoming, 145-hp Continental and the Olds/Buick 215-cu.in. V-8s. The Oldsmobile Tailwind was built in 1974.

Wittman W-10 Tailwind built by Jim Clement

Wittman W-9 N4JB

The W-9L Tailwind, with a tricycle landing gear, was built in 1958. Based on the W-8, the prototype N374 was powered by a 160hp Lycoming O-320-B1A.

In 2009 available as kit or plans from Aircraft Spruce & Specialty Co. Plan Price $180.00.
AJEP Developments in the UK offered kits to construct modified version of Whittman Tailwind homebuilt aircraft.

AJEP Tailwind G-BCBR September 1975 at Luton

Aircraft Spruce acquired the rights to the Tailwind in January 1996 and is became the exclusive distributor for plans and materials kits, the W-10 replacing the W-8.

Witt-Tailw

Gallery

Engine: Continental, 100 hp
Gross Wt. 1300 lb
Empty Wt. 700 lb
Fuel capacity 25 USG
Wingspan 22’6’
Length 19’3”
Span: 22’ 6”
Length: 19’ 3”
Wing Area: 90 sq. ft
Empty Weight: 318 kg / 700 lb
Loaded Weight: 590 kg / 1300 lb
Wing Loading: 14.5 lb/sq. ft
VNE: 161 kt / 185 mph / 298 kmh
Max. Speed: 130 kt / 150 mph / 241 kmh
Cruise Speed: 130 mph
Stall Speed: 60 mph
Climb: 900 fpm / 5 m/s
Range: 500 miles
Takeoff run 800 ft
Landing roll 600 ft
Seats: 2

Engine: Lycoming O-290-D2, 135 hp
Wing span: 21 ft. 11 in
Airfoil: NACA 4309
Length: 19 ft 3 in
Height: 5 ft 3 in
Wing area: 82 sq.ft
Wing loading: 17 lb/sq.ft
Seats: 2
Empty weight: 800 lbs
Useful load: 600 lbs
Gross weight: 1,400 lbs
Power loading: 11 lb/hp
Fuel capacity: 26 USG
Baggage capacity: 60 lbs
Rate of climb: 1,200 fpm
VNE: 161 kt / 185 mph / 298 kmh
Max speed: 170 mph
Cruise speed (75% power): 160 mph
Range (at max cruise, no res): 500 sm
Stall speed (flaps down): 65 mph

Engine: Lycoming O-235, 115 hp
Wingspan: 22 ft 6 in
Length: 19 ft 3 in
Height: 5 ft 6 in
Wing area: 90 sq.ft
MAUW: 1400 lb
Empty weight: 318 kg / 700 lb
Fuel capacity; 25 USG
Baggage capacity: 65 lb
VNE: 161 kt / 185 mph / 298 kmh
Max speed: 160 mph
Cruise: 130 kt / 150 mph / 241 kmh
Stall: 70 mph
ROC SL: 1000 fpm
Take off run: 800 ft / 244 m
Landing roll: 600 ft
Ceiling: 17,000 ft
Range: 600 sm

W-9L Tailwind

Engine: Lycoming O-320-B1A, 160hp

Wingspan: 20'0"

Length: 19'3"

Useful load: 650 lb

Max speed: 198 mph

Cruise speed: 180 mph

Stall: 55 mph

Range: 600-700 sm

Undercarriage: tricycle

Seats: 2

W.10 Tailwind
Engine: Cont. 85, 90, 100 or 145 HP Lyc. 108-160 HP
Length: 19' 6"
Wing Span: 24'
Wing Area: 90 Sq. Ft.
Cruising Speed (Vc): 150 to 190 MPH

W10 Tailwind
Top speed: 200 mph
Cruise: 180 mph
Range: 600 sm
Rate of climb: 1200 fpm
Takeoff dist: 750 ft
Landing dist: 650 ft
Service ceiling: 20,000 ft
Engine: continental O-300, 145 hp
Fuel capacity: 35 USG
Empty weight: 876 lb
Gross weight: 1425 lb
Height: 5.5 ft
Length: 19.6 ft
Wing span: 24 ft
Wing area: 92 sq.ft
Seats: 2
Landing gear: tailwheel

W-10 Tailwind

Engine: 150hp Lycoming O-320 or 145hp Continental O-300 or 130-135hp Oldsmobile F85 or Buick V-8

Max speed: 210 mph

Cruise speed: 180 mph

Stall: 40-43 mph

Range: 466 sm

Seats: 2

Undercarriage: Tricycle

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