SCAGV

Software Controlled Anti-G Valve

Needs

The anti-G valves protect the pilot from the effects of high G-loads, e.g. possible G-LOC. Depending on the current G-load, the valves control the pressure in the anti-G suit and provide overpressure to the mask for forced breathing.

  • All high performance aircraft capable of creating high-G must be equipped with an anti-G protection system. Without such a system, the pilots are not able to sustain high G-loads from modern fighter aircraft.
  • The aircraft industry provides such anti-G systems in form of hardware-controlled valves. These react on aircraft-induced G-loads and have a fixed pressure versus Gz load characteristic.
  • The AMST software controlled anti-G system represents an alternative to such standard aircraft anti-G systems for use in human centrifuges or other earth-based simulators.

Needs

Benefits

The Software-Controlled Anti-G Valve enables simulator manufacturers to equip their simulators with an anti-G protection system. Through its highly flexible design, the system can be adjusted to the characteristics of aircraft type.

  • It can be used as a standard AGV or AGV including Positive Pressure Breathing (PPB)
  • Has proven safety features to prevent overpressure to the pilot and his equipment
  • Gives the user the advantage of different pressure curve settings for different suits or research
  • Is available for simulator manufacturers whilst original anti-G valves are ITAR-regulated aircraft equipment and hardly available for use in simulators
  • Requires no ITAR approval because as only standard industrial components are used

Benefits

Features

The SCAGV is a highly flexbile and cost-efficient solution

Breathing Air Supply System

Breathing Air Supply System

A silent screw compressor and a set of filters and dryers provides breathing air quality according to international standards.
Seat Portion/PEC

Seat Portion/PEC

Different seat portions are available for aircraft such as Eurofighter Typhoon, F-35 Lightning, Hawk T2 and others on request.
Pressure Supply Panel

Pressure Supply Panel

Each supply line consists of a pressure reduction valve, a shut-off valve and a pressure sensor. The pressure supply panel is used for safety shut-off in case of unintended overpressure or underpressure in the compressed air supply.
Pressure Regulator Block

Pressure Regulator Block

The AMST SCAGV provides 3 pressure lines:
  • Trousers
  • Mask
  • Spare (can be used for future helmet venting)
Graphical User Interface – GUI

Graphical User Interface – GUI

In the GUI the operator can preselect the cut-in point, the pressure vs Gz curve, and the ratio between trousers, mask and spare.
Control System

Control System

A Programmable Logic Controller (PLC) is installed for real-time control of the pressure regulators, for several checks such as operating reliability and for the redundant safety system.
Safety System

Safety System

The safety critical aspect of the system is solved by electric hardware like pressure switches and relays. Each pressure line has a factory adjusted and sealed pressure switch. The pressure switch cuts off the power supply of the system in case of a pressure overshoot or a fault in a regulator. The pressure can also be cut off manually with an anti-G stop button.
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References

The Software controlled AGV is installed in the following simulators

SCAGV – References

SCAGV – References

AMST has successfully installed their SCAGV in the Centrifuges for India, Singapore, Germany, Poland and UK; In addition in the EF-Simulator for Airbus Defence, for AGSM trainer, 4 units for Saudi Arabia for the PPB trainer and one test system at AMST.
AGSM Trainer – Austria 2013

AGSM Trainer – Austria 2013

In 2013, AMST installed the device at their facility for demonstration and further development.
HTC – Poland 2011

HTC – Poland 2011

The software controlled Anti-G Valve supplies the anti-G system (trousers, vest and mask) for the MIG 29 and F-16 aircraft.
HTC – Singapore 2010

HTC – Singapore 2010

The software controlled Anti-G Valve supplies the anti-G system (trousers, vest and mask) for the F-15 and F-16 aircraft.
HTC – India 2008

HTC – India 2008

The software controlled Anti-G Valve supplies the anti-G system (trousers, vest and mask) for the MIG 29, HAWK and Mirage aircraft.
HTC – Germany 2006

HTC – Germany 2006

The software controlled Anti-G Valve supplies the anti-G system (trousers, vest and mask) for the Typhoon and Tornado aircraft.
AGSM Trainer – Germany 2003

AGSM Trainer – Germany 2003

The aim of the software controlled Anti-G Valve is to simulate reduced pressures for learning the proper timing of the anti-G straining manoeuvres for student pilots.
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