The RED A03 is a V12 four-stroke aircraft diesel engine designed and built by RED Aircraft GmbH of Adenau, Germany.[1]

RED A03 side view with gearbox (cropped).jpg
RED A03 V-12 engine
Type Aircraft diesel engine
National origin Germany
Manufacturer RED Aircraft GmbH
First run 2009
RED A03 installed in a Yakovlev Yak-52


In 2012, its unit cost was US$170,000.[2] The engine received type approval from the European Aviation Safety Agency in December 2014 for use in any CS-23 aircraft in both normal and utility categories.[1] It powered the Yakovlev Yak-152 trainer on its 29 September 2016 first flight.[3] The RED A03 is presented by the ILA Berlin Air Show as an application in the Aerobatic sector and for Defence and Security.[4] The engine is proposed for the Hybrid Air Vehicles HAV 304/Airlander 10, a British hybrid airship design, powered by four engines and can be operated with two.[5]

On 30 March 2020, RED Aircraft received a certificate of aerospace quality management system standard EN 9100:2018, based on ISO 9001:2015, from AirCert.[6] RED Aircraft is a member of The German Aerospace Industry Association,[7] itself a member of the International Astronautical Federation.[8]


It has twin double overhead camshafts. A marine version was planned for 522 kW/700 hp at 3,900 rpm.[9] The cylinder banks' angle is 80 degrees [10] It was designed by Vladimir Raikhlin, a German engineer born in Russia.



Data from EASA Type-Certificate Data Sheet[1]

General characteristics

  • Type: four-stroke compression-ignition piston engine
  • Bore: 86mm[15]
  • Stroke: 88m[15]
  • Displacement: 6134 cc
  • Length: 1100 mm
  • Width: 850 mm
  • Height: 750 mm
  • Dry weight: 363 kg (RED A03-003), 357 kg (RED A03-102) dry



  • Power output: 368kW (500 HP)Take-off at 2127 propeller rpm; 338kW (460 HP) maximum continuous at 1995 Propeller RPM
  • Specific fuel consumption: 210 g/kW/h (0.35 lb/hp/h) at 400 hp, 1862 prop. RPM, sea level[15]

RED A05 300hp V6Edit

The RED A05 is a 2017 preliminary design of a V6 engine with 3,550 cc (217 cu in) displacement, outputting 300 hp (220 kW) at takeoff at 2127 propeller RPM and 280 hp (210 kW) continuously at 1995 propeller RPM, with a 210 g/kW/h (0.35 lb/hp/h) best brake specific fuel consumption.[16]

See alsoEdit


  1. ^ a b c "E.150 – Type-Certificate Data Sheet – RED A03 series engines" (PDF). European Aviation Safety Agency. 27 August 2018.
  2. ^ Niles, Russ (July 29, 2012). "500 Horsepower V-12 Turbo Diesel Engine From Germany". AV web.
  3. ^ Perry, Dominic (5 Oct 2016). "First flight for Yak-152 trainer". Flight Global.
  4. ^ "RED Aircraf GMBH". ILA Berlin Air Show.
  5. ^ a b c d "Fleet of RED A03 powered aircraft". RED Aircraft.
  6. ^ "Aircert Certificate Registration no. AC_0238-01".
  7. ^ "Members". BDLI.
  8. ^ "German Aerospace Industries Association". International Astronautical Federation.
  9. ^ Henderson, Keith (March 31, 2011). "Lightweight 375 kW (500 hp) V12 Marine Diesel". Maritime propulsion. Maritime Activity Reports.
  10. ^ "The RED A03 Engine".
  11. ^ "Airlander Hybrid Air Vehicles". RED Aircraft.
  12. ^ "Celera 500L Performance". Otto Aviation.
  13. ^ Kate Sarsfield (3 July 2020). "Pro-Avia selects Red A03 diesel engine to power in-development utility-twin". Flightglobal.
  14. ^ Kyle Mizokami (Aug 22, 2019). "Russia's New 'Altair' Spy Drone Takes to the Skies". Popular Mechanics.
  15. ^ a b c "RED A03 - V12 - 6100cc / 374 cu in" (PDF). RED aircraft. Jul 2017.
  16. ^ "RED A05 - V6 - 3550cc / 216 cu in" (PDF). RED aircraft. Jul 2017.

External linksEdit