The RED A03 is a V12

four-stroke A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either directio ...

aircraft diesel engine The aircraft diesel engine or aero diesel is a diesel-powered aircraft engine. They were used in airships and tried in aircraft in the late 1920s and 1930s, but were never widely adopted until recently. Their main advantages are their excellent ...

designed and built by

RED Aircraft GmbH Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–750 nanometres. It is a primary color in the RGB color model and a secondary ...

Adenau Adenau () is a town in the High Eifel in Germany. It is known as the ''Johanniterstadt'' because the Order of Saint John (Bailiwick of Brandenburg), Order of Saint John was based there in the Middle Ages. The town's coat of arms combines the black ...

, Germany.

Development

In 2012, its unit cost was . The engine received type approval from the

European Union Aviation Safety Agency The European Union Aviation Safety Agency (EASA) is an agency of the European Commission with responsibility for civil aviation safety in the European Union. It carries out certification, regulation and standardisation and also performs inve ...

in December 2014 for use in any CS-23 aircraft in both normal and utility categories. It powered the

Yakovlev Yak-152 The Yakovlev Yak-152 is a Russian primary trainer (aircraft), trainer aircraft from the Yakovlev Design Bureau, part of the Irkut Corporation. The prototype Yak-152 first flew on 29 September 2016, powered by a RED A03 diesel engine, rated at ...

trainer on its 29 September 2016 first flight. The RED A03 is presented by the

ILA Berlin Air Show The ILA Berlin Air Show ( German: (ILA)) combines a major trade exhibition for the aerospace and defence industries with a public airshow. It is held every even year at the new Berlin ExpoCenter Airport next to the Berlin Brandenburg Airport ...

in 2020 as an application in the aerobatic sector and for defence and security. The engine is proposed for the

Hybrid Air Vehicles Airlander 10 The Hybrid Air Vehicles Airlander 10 (originally developed as the HAV 304; nicknamed "The Flying Bum") is a hybrid airship designed and built by British manufacturer Hybrid Air Vehicles (HAV). Comprising a helium airship with auxiliary wing an ...

, a British hybrid airship design, powered by four engines and can be operated with two. In November 2021, an

Air Tractor AT-301 The Air Tractor AT-300 is a family of agricultural aircraft that first flew in the United States in September 1973. Type certification was awarded to Air Tractor in November the same year, and serial production commenced in 1976. Of low-wing mo ...

made a first flight retrofitted with a RED A03 engine. The same month, a prototype

Otto Celera 500L The Otto Celera 500L is a business and utility light aircraft developed by American startup Otto Aviation. By November 2021, 55 successful test flights had been completed, as introduction is targeted for 2024–2025. It has a single RED A03 ...

Sustainable Aviation Fuel An aviation biofuel (also known as bio-jet fuel, Note: About">Investable Universe>About' sustainable aviation fuel (SAF), or bio-aviation fuel (BAF)) is a biofuel used to power aircraft. The International Air Transport Association (IATA) consid ...

. On 18 November 2022,

Ampaire Ampaire is an American aircraft manufacturer startup based in Hawthorne, California. History The company developed the Electric EEL, based on a Cessna 337 Skymaster (a push-pull aircraft) with a piston engine replaced by an electric motor ...

flew its Eco-

Caravan Caravan or caravans may refer to: Transport and travel *Campervan, a type of vehicle also known as a motor caravan *Caravan (travellers), a group of travellers journeying together **Caravanserai, a place where a caravan could stop *Caravan (trail ...

maiden flight: the

hybrid electric aircraft A hybrid electric aircraft is an aircraft with a Hybrid electric vehicle, hybrid electric powertrain. As the energy density of lithium-ion batteries is much lower than aviation fuel, a hybrid electric powertrain may effectively increase flight rang ...

uses a RED A03 engine to reduce fuel consumption by 70% on shorter trips to 50% on longer ones. Useful load decreased by 800 lbs, while range improved from nm to ;

supplemental type certificate A supplemental type certificate (STC) is a civil aviation authority-approved major modification or repair to an existing type certified aircraft, engine or propeller. As it adds to the existing type certificate, it is deemed "supplemental". In ...

(STC) is targeted for 2024. As of March 2023, there were reliable reports of flight testing on a

DHC-2 Beaver The de Havilland Canada DHC-2 Beaver is a single-engined high-wing Propeller (aircraft), propeller-driven STOL, short takeoff and landing (STOL) aircraft developed and manufactured by de Havilland Canada. It has been primarily operated as a b ...

Design

It has twin

double overhead camshaft An overhead camshaft (OHC) engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combus ...

s. A marine version was planned for 522 kW/700 hp at 3,900 rpm. The cylinder banks' angle is 80 degrees. The RED A03-200 series is a derivative developed for very

high-altitude Altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The exact definition and reference datum varies according to the context (e.g., aviation, geometry, geographical s ...

operation up to , with a maximum rating of at FL250.

Applications

; Agricultural aircraft *

(

STC STC may refer to: Education * Saint Theresa's College (disambiguation), any of several institutions * St. Thomas' College, Matale, Sri Lanka * S. Thomas' College, Mount Lavinia, Sri Lanka * Scott Theological College, Kenya * Sha Tin College, H ...

planned) *

Fletcher FU-24 The Fletcher FU-24 is an agricultural aircraft made in New Zealand. Being one of the first aircraft designed for aerial topdressing, the Fletcher has also been used for other aerial applications as a utility aircraft, and for sky diving. Desi ...

; Airship *

(proposed) ; Utility aircraft *

Eco-Caravan (STC targeted for 2024). *

De Havilland Canada DHC-2 Beaver The de Havilland Canada DHC-2 Beaver is a single-engined high-wing Propeller (aircraft), propeller-driven STOL, short takeoff and landing (STOL) aircraft developed and manufactured by de Havilland Canada. It has been primarily operated as a b ...

(STC planned) * Junkers Ju 52NG * In-development twin-engine

utility aircraft A utility aircraft is a general-purpose light airplane or helicopter, usually used for transporting people, freight, or other supplies, but also used for other duties when more specialized aircraft are not required or available. The term can al ...

for 9-14 passengers or cargo from Russian Pro-Avia ; Business aircraft *

(experimental) ; Trainer aircraft *

Yakovlev Yak-18 The Yakovlev Yak-18 (; NATO reporting name Max) is a tandem two-seat military primary trainer aircraft manufactured in the Soviet Union. Originally powered by one 119 kW (160 hp) Shvetsov M-11FR-1 radial piston engine, it entered ser ...

Yakovlev Yak-52 The Yakovlev Yak-52 () is a Soviet Union, Soviet primary trainer aircraft which first flew in 1976. It was produced in Romania from 1977 to 1998 by Aerostar (Romanian company), Aerostar, as ''Iak-52'', which gained manufacturing rights under ...

and

trainers

Specifications

RED A05 300hp V6

The RED A05 is a 2017 preliminary design of a V6 engine with displacement, outputting at takeoff at 2127 propeller RPM and continuously at 1995 propeller RPM, with a best

brake specific fuel consumption Brake-specific fuel consumption (BSFC) is a measure of the fuel efficiency of any prime mover that burns fuel and produces rotational, or shaft power. It is typically used for comparing the efficiency of internal combustion engines with a shaft ou ...

References

External links

*{{official website, 1=https://red-aircraft.com Aircraft diesel engines 2000s aircraft piston engines