RED A03

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

A03
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

Development

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] In November 2021, an Air Tractor AT-301 made a first flight retrofitted with a RED A03 engine.[6] The same month, a prototype Otto Celera 500L powered by a RED A03 engine was flown using Sustainable Aviation Fuel.[7] On 18 November 2022, Ampaire flew its Eco-Caravan maiden flight : the hybrid electric aircraft uses a RED A03 engine to reduce fuel consumption by 70% on shorter trips to 50% on longer ones, retaining the Grand Caravan payload capabilities with range improved to 1,100 nmi (2,000 km); supplemental type certificate (STC) is targeted for 2024.[8]

As of March 2023, there are reliable reports of flight testing on a DHC-2 Beaver.[9]

Design

It has twin double overhead camshafts. A marine version was planned for 522 kW/700 hp at 3,900 rpm.[10] The cylinder banks' angle is 80 degrees.[11] The RED A03-200 series is a derivative developed for very high-altitude operation up to 15 km (49,000 ft), with a maximum rating of 460 hp (340 kW) at FL250.[12]

Applications
Agricultural aircraft
Airship
Utility aircraft
Business aircraft
Trainer aircraft

Specifications

Data from EASA Type-Certificate Data Sheet[1]

General characteristics
  • Type: 80° v-12 four-stroke compression-ignition piston engine
  • Bore: 86 mm (3.39 in)[17]
  • Stroke: 88 mm (3.46 in)[17]
  • Displacement: 374.3 cu in (6,134 cc)
  • Length: 1,100 mm (43 in)
  • Width: 850 mm (33 in)
  • Height: 750 mm (30 in)
  • Dry weight: 363 kg (800 lb) (RED A03-003/005), 357 kg (787 lb)(RED A03-102) dry

Components

Performance
  • Power output: A03-003: 368kW (500 HP)Take-off at 2127 propeller rpm; 338kW (460 HP) maximum continuous at 1995 Propeller RPM, A03-005: 405 kW (550 hp)
  • Specific fuel consumption: 210 g/kWh (0.35 lb/(hp⋅h)) at 400 hp, 1862 prop. RPM, sea level[17]

RED A05 300hp V6

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/kWh (0.35 lb/(hp⋅h)) best brake specific fuel consumption.[18]

See also

References
  1. "E.150 – Type-Certificate Data Sheet – RED A03 series engines". European Aviation Safety Agency. 30 June 2022.
  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 Aircraft GMBH". ILA Berlin Air Show. Archived from the original on 2020-10-30. Retrieved 2020-10-27.
  5. "Fleet of RED A03 powered aircraft". RED Aircraft.
  6. "Maiden Flight of Retrofit Air Tractor 301 with RED A03 Piston Engine" (Press release). RED Aircraft GmbH. 23 November 2021.
  7. "RED A03 Sustainable Aviation Fuel Tests For Celera 500L by Otto Aviation" (Press release). RED Aircraft GmbH. 16 December 2021.
  8. "Ampaire had the maiden flight with the RED A03 powered ECO-Caravan" (Press release). RED Aircraft. Nov 18, 2022.
  9. "Primeiro voo bem sucedido do DHC-2 Beaver com motor V12 diesel". cavok.com.br (in Portuguese). 3 March 2023.
  10. Henderson, Keith (March 31, 2011). "Lightweight 375 kW (500 hp) V12 Marine Diesel". Maritime propulsion. Maritime Activity Reports. Archived from the original on August 9, 2017. Retrieved August 9, 2017.
  11. "The RED A03 Engine". RED Aircraft.
  12. "A03-20x Series High Altitude". RED Aircraft.
  13. "Airlander Hybrid Air Vehicles". RED Aircraft.
  14. Kate Sarsfield (3 July 2020). "Pro-Avia selects Red A03 diesel engine to power in-development utility-twin". Flightglobal.
  15. "Celera 500L Performance". Otto Aviation.
  16. "yak 18". Flyer.
  17. "RED A03 - V12 - 6100cc / 374 cu in" (PDF). RED aircraft. Jul 2017. Archived from the original (PDF) on 2017-08-09. Retrieved 2017-08-09.
  18. "RED A05 - V6 - 3550cc / 216 cu in" (PDF). RED aircraft. Jul 2017. Archived from the original (PDF) on 2017-08-09. Retrieved 2017-08-09.
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