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Executor (rocket engine)

Field	Value
image	Executor engine.jpg
image_size	250
caption	ARCA Executor (shown)
name	Executor
country_of_origin	Romania
manufacturer	ARCA
type	liquid
fuel	Kerosene
oxidiser	LOX
thrust(SL)	220 kN (48,500 lbf)
thrust(Vac)	260 kN (57,300 lbf)
specific_impulse_vacuum	295s
specific_impulse_sea_level	270s
chamber_pressure	4.3 MPa
dry_weight	260kg
cycle	gas-generator
diameter	720mm

|thrust(SL)=220 kN (48,500 lbf) |thrust(Vac)=260 kN (57,300 lbf)

Executor is a rocket engine developed by ARCA for use on its Haas rocket series and on IAR 111 Excelsior supersonic airplane. Executor uses kerosene and liquid oxygen as propellants in a gas-generator power cycle.

The injector of Executor is of the pintle type that was first used in the Apollo Program for the lunar module landing engine.

Propellants are fed via a single shaft, dual inducer-impeller turbo-pump. The turbine exhaust gases are used for attitude control of the Haas 2 rocket.

Variants

Two versions of the Executor are in development. The Executor engine for the first stage of the Haas 2B and Super Haas launchers and for the IAR-111 Excelsior airplane. The second variant is the Executor Plus engine that it uses a larger exhaust nozzle optimized for vacuum operation. The Executor Plus is used on the Haas 2 air-launched rocket and on the second stage of the Super Haas rocket.

Engine description

Executor, uses an inexpensive, expendable, ablatively cooled silica-phenolic and carbon fiber composite nozzle, and produce 260 kN of thrust. The engine's ablative nozzle is designed for a 180-second run. The internal structure of the engine is made of silica-phenolic composite, while the outer structure is carbon-epoxy. The structure thickness varies from 10mm to 30mm. Beside the ablative cooling, the engine is using a kerosene film cooling method.

Engine development schedule

The Executor engine construction started at ARCA in December 2011. The first ground test was scheduled for the middle of 2012. Twelve engines were scheduled to be built in the first phase, until the first flight on board of the Haas 2 rocket in 2013. This first ground flight of the Haas 2 rocket will be for the Google Lunar X Prize Competition. After this flight, the engine will be integrated on the IAR 111 Excelsior supersonic airplane.

References

ARCA, [http://www.arcaspace.com/en/executor.htm Executor Rocket Engine] {{webarchive. link. (2014-10-09 (accessed 22 Sept 2014))
http://spacefellowship.com/news/art29703/arca-has-completed-the-first-executor-rocket-engine.html

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

rocket-engines-using-kerosene-propellant arcaspace rocket-engines-using-the-gas-generator-cycle

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