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Tomak SD-4 Viper


Viper is an all-metal microlight plane designed for sport, recreational flying and glider towing. The control of the aircraft is helped by LCD flight, navigation and communication systems. Viper SD-4 was developed and is made by aviation and mechanical engineering specialists at Tomark s.r.o., based in Slovakia. Modern technologies and CAD systems are used in its manufacture. Individual parts are cut by laser or machined on CNC machines for maximum precision. 2009 Price: 66000 EURO


This aircraft has:
DUC SWIRL Propeller
Ballistic recovery system 600kg
Dynon Flightdeck D180
GPS AVmap Geopilot plus
Garmin SL-40 radio
Garmin GTX 327 Transponder




Engine 4-stroke Rotax 912 ULS, 100 HP
Wing span 8.4 m
Length 6.4 m
Height 2.2 m
Empty Weight: 285 kg / 628 lbs
Maximum take-off weight 472,5 kg
Cruising speed: 108 kt / 124 mph / 200 kmh
Never exceed speed: 130 kt / 149 mph / 240 kmh
Stall speed: 35 kt / 40 mph / 65 kmh
Climb rate: 1200 ft/min / 6 m/s
Ceiling 5,000 m
Take-off distance 150 m / 180 m
Landing distance 140 m / 160 m
Take-off distance (50ft obstacle): 820 ft / 250 m
Landing distance (50ft obstacle): 920 ft / 280 m
Fuel tank volume 70 lt
Range 750 km



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