Firewall Forward kit

Engine Mount

The framework to attatch the engine to the airframe is a complex part, holding the engine even in a high g-load condition and isolating the airframe against vibration. We are offering 3D-CAD design service as well as production facilities to supply the engine mount as a checked product within our QC procedures. As the engine mount effects the parasitic drag considerations in the aircraft design, a very close cooperation between the design specialists on both sides is required and can be assured inside our EASA certified DO.

Please contact us to talk about your project and the solution you are looking for.

A03 Engine A03 Technical Data

A03 Certificates

Our certificates

New Zealand CAA
DOA EASA.21J.433 and TCDS E.150 - Updated 2022-07
The Russian Federation CAA
Produced in an EN9100 certified environment
Made in Germany
A03 Engine A03 Technical Data


Full authority digital engine control
FADEC by RED Aircraft

  • Developed and certified according to DO-254 DAL B. The software  
  • Voll redundanter Aufbau mit zwei identischen Lanes
  • IBIT und CBIT Überwachung mit automatischem Lanewechsel im Fehlerfall
  • Betriebsdaten- und Fehleraufzeichnung
  • CAN-Bus Interface zur Fehleranalyse und Auswertung der Betriebsdaten
  • Serielle Schnittstelle zum Cockpit
  • Optionale bidirektionale Schnittstelle
  • Intelligenter Watch Dog
  • The EECU operates two independant and seperately operational Lanes.
  • All sensors for the core controller functions are fully redundant.
  • In case of a sensor failure for non-essential controller systems, the values are replaced by data provided in the other segment.
  • Informelle Sensoren (nicht regelungsrelevant) sind einfach vorhanden, werden aber von beiden Lanes gelesen
  • Stromversorgung der FADEC ist für zwei unabhängige Systeme ausgelegt
Fleet Press Release Sustain

Ampaire eHybrid


Ampaire announces RED Aircraft GmbH as Reciprocating Engine Supplier for Hybrid-Electric Eco Caravan.

Both Companies Envision Collaboration on Additional Hybrid-Electric Programs

Oshkosh, WI (July 25, 2022) Ampaire today announced a key exclusive supplier for the hybrid-electric propulsion system it is developing for its Eco Caravan aircraft, an upgrade to the current Cessna Grand Caravan. Ampaire will use a RED Aircraft AO3 series compression ignition engine rated to 550 hp (405 kW) in an integrated parallel configuration. The RED engine provides the base power and the Ampaire electrical system provides the peak power.

Under the terms of an MOU between the companies, the two will work to commercialize electrified propulsion aircraft, with Ampaire developing complete hybrid-electric propulsion systems and certifying them for various applications up to 800 hp, while RED Aircraft will develop, certify, and supply Jet A/SAF compatible engine subsystems to Ampaire.

The new propulsion system for the Eco Caravan offers substantial benefits to users and will be the first in a series of electrified fixed-wing aircraft that reduce aviation’s carbon footprint.

  • Fuel consumption is reduced by 70 percent on shorter trips and 50 percent on longer ones with greater corresponding reductions in CO2 emissions due to the contribution of the electric motor and the optimized use of the RED engine.
  • The RED engine provides high thermodynamic efficiency that is 2X better than a comparable turboprop engine.
  • The RED engine is JET A/SAF compatible. With SAF usage, CO2 emissions have the potential for net zero.
  • Engine initial cost and ongoing maintenance are substantially lower than for a turboprop engine. Durability and reliability of the RED engine has been demonstrated in applications such as the Air Tractor AT 301, an agricultural aircraft, and the YAK-152 aerobatic trainer.
  • Eco Caravan operating cost is 25-40 percent lower depending on an operator’s route structure.

Ampaire conducted the first Eco Caravan hybrid powertrain ground runs in April 2022, with plans to fly the aircraft in the second half of the year. The company is working with the FAA to achieve supplemental type certificate (STC) approval by 2024.

The Eco Caravan will retain the payload capabilities of the Grand Caravan, carrying up to 11 passengers or 2,500 pounds of cargo. Range improves to 1,100 nautical miles.

“The modern, powerful and ultra-fuel-efficient RED engines have exactly the right characteristics for the Eco Caravan’s hybrid-electric propulsion system and for many other upgrades or all-new designs we may pursue,” said Ampaire CEO Kevin Noertker. “We are very pleased to take this first step in collaboration with a company that shares our goal to decarbonize aviation while reducing costs for aircraft operators and their passengers.”

“RED Aircraft sees enormous potential for hybrid-electric aircraft and believes the Eco Caravan is just the first step to bringing a new level of efficiency and vastly lower emissions to a large swath of aviation,” said Jürgen Schwarz, CEO. “We are thrilled to be pursuing these opportunities hand-in-hand with Ampaire.”

About Ampaire

Los Angeles-based Ampaire was formed in 2016 with a mission to become the world’s most-trusted developer of practical, compelling electric aircraft. The company is upgrading existing passenger aircraft to hybrid-electric power – the quickest, most efficient approach to making commercial electric air travel a reality with available technology. The company ultimately intends to offer upgraded and all-new hybrid-electric and fully electric aircraft. Ampaire technology is scalable to larger aircraft, including large regional aircraft.

Ampaire has scored a series of industry firsts since the 2019 maiden flight of its Electric EEL technology testbed aircraft. Its EEL market demonstration aircraft has flown nonstop from Los Angeles to San Francisco and the length of the UK. In April 2022, Ampaire began ground power runs of its Eco Caravan hybrid-electric upgrade of the Cessna Grand Caravan, slated for certification and service introduction in 2024. For more information about Ampaire

About RED Aircraft

RED Aircraft’s mission is to power today’s and tomorrow’s aircraft efficiently and cost-effectively. The company is achieving these goals by using highly efficient internal combustion engines, the use of alternative fuels and hybrid technologies such as electrification.

RED Aircraft is a brand of Raikhlin Aircraft Engine Developments GmbH based in Adenau, Germany. RED Aircraft develops highly sophisticated and innovative engine solutions for motorsports and aviation. The award winning RED A-03 series is a V12 compression-ignition engine, offering 550 hp/405 kW and is targeted to the GA, small commercial aircraft and UAV market intending to improve the eco balance in avoiding inefficient gas turbine designs.


Fleet Press Release

Fletcher FU-24

RED A03 in a Fletcher FU-24 during take-off.

RED A03 installed in the Fletcher FU-24

Recently a Fletcher FU-24 took its maiden flight in New Zealand, now using the modern common rail compression ignition RED A03-003 engine with 500 HP, replacing its original 400 HP 8 cylinder AVGAS engine.

Diesel Air New Zealand Ltd., in New Zealand, and RED Aircraft, in Germany, have been working hard to retrofit the classic PAC FU-24 Fletcher. An iconic single engine, low wing propeller STOL (Short Take Off and Landing) aircraft. It is widely used as an agriculture crop dusting aircraft as well as for dropping parachutists. This aircraft first flew in the middle of the 1950’s and has been in production in various variants till 1992.

Classic aircraft, like the FU-24 Fletcher, are facing more and more challenges to operate due to their older engines that are burning expensive, lead containing, AVGAS fuel and where maintenance becomes more difficult due to parts shortage. For this reason RED Aircraft is working on a number of projects to modernize these classic aircraft.

Diesel Air New Zealand has done a marvellous job to install the RED A03 engine into the Fletcher’s airframe. After the installation and engine certification with the New Zealand Aviation Authorities, the Fletcher recently took to the skies, showing off her impressive performance with the new 500 HP Compression Ignition (CI) engine.

Bill Sutherland, owner of Diesel Air New Zealand commented:

“We were more than pleased with how EUC (ZK-EUC, registration of the aircraft ed.) performed on its maiden flight. Our test pilot, Bill O’Connor, a widely experienced Fletcher pilot, could not get the smile off his face.

We now have the supervised Flight Test Schedule to get through to complete our Experimental phase. We will get onto this very quickly, to then be able to demonstrate the economics of the operation of the RED A03. We have a conservative estimate that the V12 will operate consuming 20% less fuel than the 400hp Lycoming 720, while producing 25% more horsepower. If the comparison is made  with the 550hp turbine engines already fitted to Fletchers the fuel saving is a minimum of 40%.

Our target for the fitting of the A03 engine are topdressing- and parachuting companies operating Fletchers.

Diesel Air New Zealand Ltd will be the STC holder and are using Phoenix Aviation Maintenance (2021) Ltd, a closely aligned aircraft maintenance company, to provide engineering support. RED are in the process of organizing worldwide product support. Diesel Air (NZ) Ltd Have applied to be included.”

The RED CI engines boost an impressively lower fuel consumption, less maintenance intervals (that are faster to do) and high reliability thanks to its redundant systems and engine data logging systems that show performance trends of many components in the engine. Along with many other improvements, the engine is certified for more efficient fuels such as Kerosine. Tests with SAF (Sustainable Aviation Fuel) are positive and a certification process is projected. The engine that the 500 HP RED A03-003 replaces in the Fletcher, is the Lycoming IO-720-A1A, which produces a maximum of 400 HP. The use of the RE A03 will reduce the operating costs of this iconic aircraft considerably.

This is a retrofit project we are very excited about and will make sure to keep you posted on our various channels. The pictures enclosed show the engine installation and the first take-off with the RED A-03. For further information regarding fitting of the RED A03 into the Fletcher please contact Bill Sutherland.  Email


De Havilland DHC-2 Beaver

DHC Beaver with RED A03

DHC-2 Beaver








HAL Airlander