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Aero India 2021: RAC MiG modernizes human-machine interfaces


The Russian Aircraft Corporation (RAC) MiG (a subsidiary of Rostec’s United Aircraft Corporation) is improving the human-machine interface of Mikoyan-Gurevich MiG-35 and MiG-29M/M2 fighter jets, according to the press department of the corporation.

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Aero India 2021 RAC MiG modernizes human machine interfaces Russian Air Force MiG-29M2 twin-engine fighter aircraft (Picture source Vitaly Kuzmin)


Russian specialists adressed the fluctuations emerging at manual mode of an aircraft at high-G maneuvering regimes (so-called pilot induced oscillations or PIO). These fluctuations trigger instability in control systems and may lead to emergencies. The new device dedicated to rule out the potential problem has been tested and installed on multirole MiG-29M/M2 and MiG-35 fighter jets.

“The patented device increases safety and decreases the load on the pilot in the cockpit,” MiG Managing Director Andrey Gerasimchuk said.

The non-linear adjusting device is installed in sequence before the control actuator. It helps the combat aircraft to avoid the critical speed regime. It also rules out a delay of the input signal to the control actuator.

“PIOs emerge when the pilot cannot adapt to unexpected changes in the dynamic of the aircraft during a complicated mission. The device makes the flight safer,” MiG Deputy Chief Designer for control systems Yuri Obolensky said.

MiG earlier patented a complex system to limit flight envelope of a maneuverable aircraft below critical levels. It keeps the jet in acceptable angles of attack in any position of the control stick and prevents spin.acceleration. The second component keeps the maximum allowed acceleration during maneuvering in all planes. The upgraded system has been installed on MiG-35 and MiG-29/M2 aircraft.

“The safety and comfort of a pilot are a priority for our designers. The patented system improved MiG tactical and technical parameters. The aircraft now exceeds foreign analogues,” MiG Managing Director Andrey Gerasimchuk said.

MiG-23 and early versions of MiG-29 fighter jets used to have a mechanical restrictor of top regimes. The control stick was pushed automatically, as the aircraft reached the maximum angle of attack. It impeded the pilot from fully controlling the advance to the top regime. The upgraded system makes the pilot stay in the permissible acceleration limits in any flight regime.

“We have upgraded the critical regime restrictor for five years. It was necessary to keep the top maneuvering parameters and the technical features of a combat jet. Trials were held in numerous flight regimes. We are convinced that we have achieved the set goal,” MiG Deputy Chief Designer for control systems Yuri Obolensky said.

The patented system differs from analogues and considerably increases flight safety.

MiG earlier patented an intellectual system to protect maneuverable combat jets from critical acceleration. It increased flight safety and allows the pilots to engage in air combat without distracting to look at the control panel.


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