Viper SD4
AIR FORCE TRAINER

Parameters

Viper SD4 AFT

All-metal two-seater aircraft with an MTOW of 600 kg, designed for the basic training of military pilots. Thanks to its excellent equipment, excellent flight characteristics and low operating costs, the Viper SD4 AFT is a great choice for training air force pilots.

Efficient braking system

Braked main wheels, front steered wheel, brake system on the control stick.

Launch rescue system

A ballistic rescue system for the entire aircraft mounted on the centerboard. The system activator is in the pilot’s seat below the instrument panel.

HOTAS (Hands On Throtle And Stick)

Availability of the necessary controls close to the throttle and the control lever. Flight control camera in the cockpit.

Useful aircraft lighting

Two LED landing lights are built into the front of the hull. On the end curves of the wings, it consists of exterior position lamps with LED technology in green and red with integrated flashing lights of a bright white color and one flashing light on the tail surface.

Coloring as Albatrosses

The gray-orange color clearly indicates that the training aircraft is easily identifiable from the ground. The overall design is directed toward the air force segment.

A directional rudder

effectively increases directional stability during take-off

A redesigned idea of a military special

Applied changes to the cockpit and equipment for basic training of air force pilots, together with the addition of a combination of digital and analogue instruments to the cockpit for the training of emergency procedures as well as for basic training of instrumentation procedures, including precision approach.

  • Efficient braking system

    Braked main wheels, front steered wheel, brake system on the control stick.

  • Launch rescue system

    A ballistic rescue system for the entire aircraft mounted on the centerboard. The system activator is in the pilot’s seat below the instrument panel.

  • HOTAS (Hands On Throtle And Stick)

    Availability of the necessary controls close to the throttle and the control lever. Flight control camera in the cockpit.

  • Useful aircraft lighting

    Two LED landing lights are built into the front of the hull. On the end curves of the wings, it consists of exterior position lamps with LED technology in green and red with integrated flashing lights of a bright white color and one flashing light on the tail surface.

  • Coloring as Albatrosses

    The gray-orange color clearly indicates that the training aircraft is easily identifiable from the ground. The overall design is directed toward the air force segment.

  • A directional rudder

    effectively increases directional stability during take-off

  • A redesigned idea of a military special

    Applied changes to the cockpit and equipment for basic training of air force pilots, together with the addition of a combination of digital and analogue instruments to the cockpit for the training of emergency procedures as well as for basic training of instrumentation procedures, including precision approach.

Air Force concept

Perfect design, visual and configuration of military training aircraft

Efficiency and convenience

State-of-the-art avionics technologies at minimal operating costs

Glass Cockpit

Avionic equipment

The Air Force Trainer instrument panel is designed to be compatible with the basic requirements of primary air force training. Digital instruments 2 x EFIS (1 switchable), 1 x EMS complements the set of analogue instruments (compass, speedometer, altimeter, variometer, turn and ball meter, tachometer), analogue on-board clock with stopwatch. The training configuration is completed by: CDI – course deviation indicator/descending axis position indicator and chassis exercise control + LED indicator position (Viper SD4 has a fixed chassis). Communication equipment consists of radio 8.33 MHz VOR/ILS (NAVCOM), CDI+GS indicator, GPS, ELT, two-axis autopilot (HDG, ALT, NAV, HOLDING).

Certified compass
GPS
“Retract the chassis” alert indicator
Digital avionics EFIS-D10A, Analog instruments, Elevator and aileron trim indicator
Digital avionics EFIS D-10A ▪ EMS D-10A
nižšie úsekové spínače
Transponder
Autopilot ▪ ELT
Radio NAV/COM
Throttle ▪ Elektric flaps ▪ Canopy lock and low fuel LED indicator
The throttle
Control of airbox, cylinder air, cabin heating ▪ 12 V socket ▪ USB socket
  • Certified compass
  • GPS
  • “Retract the chassis” alert indicator
  • Digital avionics EFIS-D10A, Analog instruments, Elevator and aileron trim indicator
  • Digital avionics EFIS D-10A ▪ EMS D-10A
    nižšie úsekové spínače
  • Transponder
  • Autopilot ▪ ELT
  • Radio NAV/COM
  • Throttle ▪ Elektric flaps ▪ Canopy lock and low fuel LED indicator
  • The throttle
  • Control of airbox, cylinder air, cabin heating ▪ 12 V socket ▪ USB socket
Configuration

Small Large Training Special

The configuration and equipment of the Air Force Trainer aircraft is structurally, but also instrumentally focused on the quality training of flight procedures for air force pilots. The conceptual core lies in the focus on emergency procedures, ILS and VOR precision approach and landing. Exercise of instrument flying and flying according to autopilot, which meets the quality level of modern instruments in serially produced transport or military aircraft.

Engine

Rotax 912 ULS

4-stroke 100 HP
engine

Engine equipment

airbox, fuel flow indicator, additional electric pump
Propeller

Neuform CR-3-65

adjustable on the ground
safety

Safety

BRS recovery system, ELT emergency locator transmitters
Digital avionics

Digital avionics

2x EFIS-D-10A (flying data), EMS D-10 (engine data)
Avionics

Analog avionics

ASI, ALT, VSI, TACH, Turn indicator, Compass, Watch
Avionics

Comunication

Radio VOR/ILS(NAV/COM), Transponder S mode, GPS AvMap
Flight control

Flight control

two-axis autopilot, electric flaps, electric trim (H+V)
Cabin

Cabin

flight control camera, stick brakes, adjustable pedals
Interior

Interior

cabin heating, ventilation system, 12 V and USB socket
Exterior

Exterior

side steps, aerodynamic wheel covers
svetlá

svetlá

pozičné svetlá, zábleskový maják
Avionic equipment

Special equipment

course deviation indicator, training chassis control
Special equipment

Special equipment

position LED indicator, „Landing gear” alert indicator
Air Force principle

HOTAS

control of systems on or near the steering
Air Force principle

Training special

Design philosophy focused on Air Force training
UL/LSA
Engine 4-stroke Rotax 912
ULS 100 HP
Tank volume
100 L
Consumption (NAT 99+) / 1 hour
16,4 L
Wing span
8,4 m
Length
6,4 m
Height
2,2 m
Take-off distance
180 m
Landing distance
160 m
Range
705 km
Cruising speed
200 km/h
Max. speed
240 km/h
Stall speed
75 km/h
Climb rate
5 m/s
Durability
6 hours
Max. take off weight incl. BRS
600 kg

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