A spacious cockpit, modern and ergonomic interior and complemented by state-of-the-art avionics… we invite you to take a look at the newest offering of a 2-seater / side by side, light sport aircraft – the Viper SD4.
The Viper SD4 is manufactured in Europe by TOMARKAERO, and carries the EASA certification (European Union Aviation Safety Agency). The aircraft is a robust all-metal construction, with top flight characteristics, ballistic recovery and low fuel burn. It is ideal for recreational travel, training and glider towing.
WHY VIPER SD4?
- DESIGN: An all-metal design of the plane – low overall costs of operation and comprehensive maintenance
- CONSTRUCTION: A strong and robust metal construction increases the safety level and ensures a longevity of the plane
- COMFORT: A spacious cockpit with excellent visibility ensures a comfortable and pleasant flight
- FLIGHT: The flight characteristics will be appreciated by not only experienced pilots, but also by flight instructors and students alike
- TECHNOLOGY: The latest avionic technologies – wide utility options, excellent quality and a first-class design
- MANUFACTURING: Excellent and precise manufacturing on CNC machines, using quality materials and workmanship with particular emphasis on accuracy, security and great customer value
- FUEL: A low fuel consumption, minimise operation costs
- CUSTOMISATION: The finish and equipment of each aircraft is tailor made according to the customer’s individual requirements and wishes
Viper SD4 is a single-engine, two-seater, low-wing all-metal aircraft with the side-by-side configuration.
The aircraft’s fuselage is made as an all-metal semi-monocoque and frame structure, comprising stringers and an aluminium alloy skin. The engine compartment is separated from the crew compartment by a steel firewall.
It is all-metal, of a rectangular planform and a single-spar design, with an auxiliary spar. The wing is equipped with ailerons, slotted flaps, controlled electrically into four positions, and 100 litres/ 26,4 US gal fuel tanks. The wing tips are equipped with composite winglets to reduce drag.
The horizontal stabilising surface is made of a continual stabiliser with the right and left parts of the elevator interconnected by the control transmission. The elevator is equipped with an electronic trimming tab. The vertical stabilising surface of a trapeze shape consists of a vertical stabiliser and a rudder.
It is designed with the seats configured side by side. The cockpit is covered by a clear or tinted canopy, ensuring a very good visibility. The canopy opens up and backwards for easy access. The locking of the canopy is controlled by two independent levers on the inner sides of the canopy, allowing it to locked with a key. The cockpit is equipped with three air vents, located on the sides of the fuselage and it is ventilated by the ram air, led above and to the sides of the instrument panel, with the possibility to control the through-flow. The crew will appreciate the heating of the cockpit, particularly in winter.
It is tricycle gear configuration. The main landing gear comprises composite springs, the main landing gear is equipped with hydraulic disk brakes. The brakes are controlled centrally by a lever located on the central panel, between the pilots’ seats. The front landing gear wheel is steerable, with all of the wheels streamlined by aerodynamic spats.
Dual controls for both Pilot and Co Pilot. The elevator and the ailerons are controlled via push-pull rods and the rudder is controlled via Bowden cables.
Viper SD4 is supplied with three-point harness.
The fuel system comprises two lockable integrated tanks in the wings, equipped with accurate fuel gauge floats and a drain valve, fuel selector valve, a fuel filter, and an electric priming pump.
The aircraft is powered by the 100hp Rotax 912 ULS/iS – a four-stroke, horizontally opposed four-cylinder engine with liquid-cooled cylinder heads and air-cooled cylinders. The engine is equipped with a reduction gear and two carburettors.
Both a fix-pitch and variable-pitch propellers can be equipped. The supplied propeller is adjusted for maximum performance within the allowed RPM range.
Viper SD4 can be equipped with an optional tow hook for towing gliders with a take-off weight of up to 750 kg.
WING SPAN: 8.4 m / 27 ft 4 in
LENGTH: 6.4 m / 21 ft
HEIGHT: 2.2 m / 7 ft 3 in
ENGINE 4-STROKE ROTAX 912: ULS 100 HP
MAXIMUM TAKE-OFF WEIGHT: 600 kg / 1 320 lbs
CRUISING SPEED: 200 km/h / 108 kts
STALL SPEED: 75 km/h / 40 kts
CLIMB RATE: 5 m/s / 984 ft/min
TAKE-OFF DISTANCE: 180 m / 590 ft
LANDING DISTANCE: 160 m / 524 ft
RANGE: 1,200 km / 648 nm
DURABILITY: 6 hrs (1,200 km / 648 nm)
FUEL TANK VOLUME: 100 l / 26.4 US gal
AVERAGE CONSUMPTION FUEL: 16.4 l / 4.3 US gal per hour