The RED A03 is a V12 four-stroke aircraft diesel engine designed and built by RED Aircraft GmbH of Adenau, Germany.[2] The engine received type approval from the European Aviation Safety Agency in December 2014 for use in any CS/Part 23 aircraft in both normal and utility categories.[2] It powered the Yakovlev Yak-152 trainer on its 29 September 2016 first flight.[3]

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
Unit cost US$170,000 (2012)[1]
RED A03 installed in a Yakovlev Yak-52

Designed by Russian engineer Vladimir Raikhlin, the cylinder banks' angle is 90 degrees and have twin double overhead camshafts.[4] It weighs 250 kg (551 lb) net, 320 kg (705 lb) gross including two alternators, starters, engine and gearbox oil, heat exchanger and propeller governor.[4] A marine version was planned for 522 kW/700 hp at 3,900 rpm.[4]


Data from EASA Type-Certificate Data Sheet[2]

General characteristics



  • 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[5]

RED A05 300hp V6Edit

The RED A05 is a 3550cc V6 preliminary design, 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.[6]


  1. ^ Niles, Russ (July 29, 2012). "500 Horsepower V-12 Turbo Diesel Engine From Germany". AV web.
  2. ^ a b c "E.150 – Type-Certificate Data Sheet – RED A03 series engines" (PDF). European Aviation Safety Agency. 19 December 2014.
  3. ^ Perry, Dominic (5 Oct 2016). "First flight for Yak-152 trainer". Flight Global.
  4. ^ a b c Henderson, Keith (March 31, 2011). "Lightweight 375 kW (500 hp) V12 Marine Diesel". Maritime propulsion. Maritime Activity Reports.
  5. ^ a b c "RED A03 - V12 - 6100cc / 374 cu in" (PDF). RED aircraft. Jul 2017.
  6. ^ "RED A05 - V6 - 3550cc / 216 cu in" (PDF). RED aircraft. Jul 2017.

External linksEdit