Aviation

Airbus – E-Fan “Plus:” Launching a new era in electric flight

London, 28^th November 2017 – Airbus, Rolls-Royce, and Siemens have formed a partnership which aims at developing a near-term flight demonstrator which will be a significant step forward in hybrid-electric propulsion for commercial aircraft.

The three companies together announced the groundbreaking collaboration, bringing together some of the world’s foremost experts in electrical and propulsion technologies, at the Royal Aeronautical Society in London.

The E-Fan X hybrid-electric technology demonstrator is anticipated to fly in 2020 following a comprehensive ground test campaign, provisionally on a BAe 146 flying testbed, with one of the aircraft’s four gas turbine engines replaced by a two megawatt electric motor. Provisions will be made to replace a second gas turbine with an electric motor once system maturity has been proven.

“The E-Fan X is an important next step in our goal of making electric flight a reality in the foreseeable future. The lessons we learned from a long history of electric flight demonstrators, starting with the Cri-Cri, including the e-Genius, E-Star, and culminating most recently with the E-Fan 1.2, as well as the fruits of the E-Aircraft Systems House collaboration with Siemens, will pave the way to a hybrid single-aisle commercial aircraft that is safe, efficient, and cost-effective,” said Paul Eremenko, Airbus’ Chief Technology Officer. “We see hybrid-electric propulsion as a compelling technology for the future of aviation.”

The E-Fan X demonstrator will explore the challenges of high-power propulsion systems, such as thermal effects, electric thrust management, altitude and dynamic effects on electric systems and electromagnetic compatibility issues. The objective is to push and mature the technology, performance, safety and reliability enabling quick progress on the hybrid electric technology. The programme also aims at establishing the requirements for future certification of electrically powered aircraft while training a new generation of designers and engineers to bring hybrid-electric commercial aircraft one step closer to reality.

As part of the E-Fan X programme, Airbus, Rolls-Royce, and Siemens will each contribute with their extensive experience and know-how in their respective fields of expertise:

– Airbus will be responsible for overall integration as well as the control architecture of the hybrid-electric propulsion system and batteries, and its integration with flight controls.

– Rolls-Royce will be responsible for the turbo-shaft engine, two megawatt generator, and power electronics. Along with Airbus, Rolls-Royce will also work on the fan adaptation to the existing nacelle and the Siemens electric motor.

– Siemens will deliver the two megawatt electric motors and their power electronic control unit, as well as the inverter, DC/DC converter, and power distribution system. This comes on top of the E-Aircraft Systems House collaboration between Airbus and Siemens, launched in 2016, which aims at development and maturation of various electric propulsion system components and their terrestrial demonstraion across various power classes.

Aviation

Aeroflot Buys Used Planes for Spare Parts Amid Sanctions

In the face of ongoing Western sanctions that have severely impacted Russia’s aviation industry, Aeroflot, the country’s largest airline, has devised a strategic plan to bolster its fleet’s spare parts inventory.

The airline is set to acquire five Boeing 737-800BCF freighters from Atran Airlines, a move that will allow it to dismantle the aircraft for critical components. The planes, which will be transferred to Aeroflot’s low-cost subsidiary Pobeda, will not be converted into passenger jets but instead will be stripped for valuable parts to support existing operations.

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Aeroflot’s plan to purchase these Boeing 737-800BCF freighters comes as part of a broader strategy to mitigate the effects of Western sanctions, which have crippled the Russian aviation sector. With the sanctions restricting access to essential aircraft parts and spare components, Aeroflot is exploring alternative ways to maintain and repair its fleet.

Instead of converting the freighters from cargo to passenger planes, a process deemed “unreasonably expensive” under current sanctions, the airline intends to focus on extracting high-value components such as engines, landing gear, avionics, and other essential systems.

The deal will be structured in a way that allows Aeroflot to indirectly purchase the freighters through an insurance settlement with the aircraft’s lessor, AerCap.

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The Russian government’s insurance company will reimburse the aircraft’s value, and the planes will then be leased back to local operators. This method circumvents some of the restrictions imposed by international sanctions while ensuring that the airline gains access to the necessary components to support its fleet.

By dismantling the aircraft for spare parts, Aeroflot aims to secure critical resources for the ongoing maintenance of its existing fleet. Components from the Boeing 737-800BCF freighters, such as engines and avionics, are expected to be reused in other aircraft within Aeroflot’s network, ensuring that the airline can keep its operations running smoothly