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Valentin Taifun
TWI Taifun
 
twi-taifun
 
The Taifun two-seater motor glider was designed by Thomas Fischer and Dipl-lng Jorg B. Stieber for Valentin GmbH Gerateund Maschinenbau, makers of high-quality aircraft switches.
 
The Taifun is a cantilever low wing monoplane with a T-tail; the one-spar wings and ailerons are of glassfibre/foam sandwich construction, with all glassfibre flaps. The wings can be folded flat along the fuselage for easier hangar stowage, and Schempp-Hirth air brakes are fitted in their upper surfaces. The stressed skin fuselage is also a glassfibre/foam sandwich structure as are the fixed incidence tailplane and elevator. All versions have disc brakes on the main wheels, and the nosewheel of the 15E and 17E is steerable; the undercarriage of both these variants is fully enclosed when retracted. The pilots are seated side-by-side under the rear sliding canopy, with dual controls as standard. Engine is an 80hp Limbach L2000 EB 'flat four' driving a Hoffman HO-V62 three-position two bladed propeller.
 
Construction of the prototype had begun in July 1979. The prototype, a Taifun 17E registered D-KONO, made its first flight late in February 1981, as the Valentin Taifun, when more than 25 had been ordered.
 
Four versions of the Taifun were to be produced: the Taifun 15S is the basic model with 15m span wings and a fixed tailwheel undercarriage, the Taifun 17S has the same undercarriage as the 15S and 17m span wings, the Taifun 15E has 15m span wings and a retractable nosewheel undercarriage, and the Taifun 17E has the same undercarriage as the 15E but has 17m span wings.
 
Taifun 15E
Span: 49 ft 2.5 in
Length: 25 ft 6.5 in
Height: 7 ft 1 in
Wing area: 176.0 sqft
Aspect ratio: 13.8
Empty weight: 1,058 lb
Max take-off weight: 1,598 lb
Max speed: 165 mph (in smooth air)
Max cruising speed: 132 mph
Min sinking speed: 3.25 ft/sec at 54 mph
Best glide ratio: 28:1 at 75 mph
Max rate of climb: 531 ft/min at sea level
Range with max fuel: 652 miles
 
Taifun 15S
Span: 49 ft 2.5 in
Length: 25 ft 6.5 in
Height: 7ft 1 in
Wing area: 176.0 sqft
Aspect ratio: 13.8
 
Taifun 17E
Span: 55 ft 9.25 in
Length: 25 ft 6.5 in
Height: 7ft 1 in
Wing area: 189.4 sq ft
Aspect ratio: 16.4
 
Taifun 17S
Span: 55 ft 9.25 in
Length: 25 ft 6.5 in
Height: 7ft 1 in
Wing area: 189.4 sq ft
Aspect ratio: 16.4
 
TWI Taifun 17E II
Engine: 67 kW/ 90 bhp Limbach L 2400 EB1.b
Wing span: 17 m / 55.7 ft
Wing area: 17.6 sq.m / 189.4 sq.ft
Aspect ratio: 16.4
Airfoil: Wortmann FX-67-K-170/7
Empty Weight: 610 kg / 1345 lb
Payload: 240 kg / 529 lb
Gross Weight: 850 kg / 1874 lb
Wing Load: 48.3 kg/sq.m / 9.9 lb/sq.ft
L/DMax: 30 115 kph / 62 kt / 71 mph
MinSink: 0.95 m/s / 3.12 fps / 1.85 kt
Seats: 2
 
 
 
 
 
 


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