The equipment developed by Aeropribor-Voskhod JSC is intended to ensure navigation and landing of an aircraft using signals from ground radio systems.
The MMSR will allow replacing imported equipment of a helicopter (airplane) with similar functional characteristics.
The system is designed to provide instrumental landing approach for an aircraft using signals from ground-based radio navigation systems: ILS, VOR, MKR and ADF.
Thanks to the use of modern domestic high-performance processors for digital signal processing, it was possible to significantly reduce the overall dimensions of the developed system.
“Avionics developed by the concern's enterprises are now used on most domestic aircraft. The demand and widespread use of our electronic equipment is due to the efficiency and reliability of developments, their continuous improvement. A striking example is a small-sized modular radio navigation system, which by its characteristics is not inferior to leading foreign analogues. Moreover, the development was created on the basis of the concept of integrated modular avionics of the second generation, which in the future will allow combining various aerometric and navigation systems, thereby expanding the functional capabilities of avionics, - said Nikolay Kolesov, General Director of KRET.
The product is planned to be installed on advanced helicopters and small aircraft. Pilot tests should be completed in 2022.
Altitude and speed parameters for helicopters
KRET has developed the SVS-L (russian: СВС-Л) a promising air signal system for helicopters.
The uniqueness of the development is provided by air flow sensors installed on the rotating blade of the helicopter main rotor. The new aerometric method provides highly accurate and omnidirectional measurement of helicopter speed.
Participants of MAKS-2021 were the first to get acquainted with the work of SVS-L. For a clear demonstration of the advantages of the development of the Ulyanovsk Instrument Design Bureau, a demonstration stand with a model of a helicopter and a simulator of a changing air flow was installed.
The air signal system collects information about all altitude and speed parameters of the flight, transmits information to the crew of the aircraft, and also provides the necessary information to the complex of onboard equipment of the helicopter.
Traditional designs, which are used for aircraft, do not take into account the specifics of the aerodynamics and dynamics of a helicopter flight - the carrier system of a rotary-wing aircraft causes a significant disturbance of the aerodynamic velocity field near the fuselage, thus, the sensors measure distorted parameters, which leads to significant errors.
“The new development maximally takes into account the specifics of the aerodynamics and dynamics of the helicopter flight, including the unmanned one, and, thanks to this, provides the most accurate measurement of all altitude and speed parameters. In terms of accuracy, SVS-L surpasses traditional air signal systems by more than two times. For example, the measurement error of the indicated speed of the helicopter is no more than 0.75%, the absolute barometric altitude is no more than 0.17%, - said Nikolay Kolesov, General Director of KRET. -
Availability of reliable information about the measured parameters makes it possible to make the most of the flight and technical capabilities of helicopters, to improve the quality of control and flight safety in all modes, including limit modes, to ensure the possibility of landing on restricted and mobile sites in poor visibility conditions,
See also |
КRET Russian Helicopters 
Helicopters Avionics AW189 Completed GBAS Approaches
