Difference between revisions of "RE-J10 "Wolfhound" Liquid Fuel Engine"

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{{:RE-J10 "Wolfhound" Liquid Fuel Engine/Box}}
{{:RE-J10 "Wolfhound" Liquid Fuel Engine AJ10/Box}}
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The '''RE-J10 Wolfhound liquid fuel engine''' is an efficient upper stage engine.
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== Usage ==
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The Wolfhound's vacuum [[specific impulse]] is significantly higher than any other stock/DLC bipropellant engine, making it one of the most effective engines for deep space travel.
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It has higher thrust, but a lower thrust-to-weight ratio, than other vacuum-oriented bipropellant engines such as the [[RE-L10 "Poodle" Liquid Fuel Engine | Poodle]] and [[LV-909 "Terrier" Liquid Fuel Engine | Terrier]]. So to some extent the Wolfhound bridges the gap between those engines and the liquid-fuel-only [[LV-N "Nerv" Atomic Rocket Motor|Nerv]], which has a much higher I<sub>sp</sub> and much lower TWR.
  
 
== Product description ==
 
== Product description ==
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== Trivia ==
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=== Real-world comparison ===
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The Wolfhound was inspired by the American [[w:AJ10|AJ10-137 engine]] used for the [[w:Apollo command and service module#Service propulsion system|Apollo SPS]]. Other variants of the AJ10 were also used for the Space Shuttle's [[w:Orbital Maneuvering System|Orbital Maneuvering System]] and on the [[w:Orion (spacecraft)|Orion]] service module.
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Unlike the Wolfhound, the AJ10 engines are quite lightweight, and they don't have exceptional [[specific impulse]]. (Rather than the liquid hydrogen, they use less energy-dense hydrazine-based hypergolic fuels, for storage and reliable multiple firings on longer missions.)
  
 
== Changes ==
 
== Changes ==
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;[[1.6]]
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* Renamed from 'RE-J10 "Wolfhound" Liquid Fuel Engine AJ10' to 'RE-J10 "Wolfhound" Liquid Fuel Engine'
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* Moved tech from Heavy Rocketry to Very Heavy Rocketry
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* Increased unlock cost from 6200 to 12000
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* Increased cost from 1680 to 3000
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* Increased mass from 2.5 to 3.3
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* Improved Isp
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;[[1.4.5]]
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* Added ModuleTestSubject
 
;[[1.4.1]]
 
;[[1.4.1]]
 
* Initial Release
 
* Initial Release

Latest revision as of 09:01, 13 October 2023

RE-J10 "Wolfhound" Liquid Fuel Engine
Part image
Liquid fuel engine by
Rockomax Conglomerate

Radial size Large
Cost (total) 3 000.00 Funds
Mass (total) 3.300 t
Drag 0.2
Max. Temp. 2000 K
Impact Tolerance 6 m/s
Research Tech tree very heavy rocketry.png Very Heavy Rocketry
Unlock cost 12 000 Funds
Since version 1.4.1
Part configuration LiquidEngineRE-J10.cfg
Maximum thrust (1 atm) 69.08 kN
(vacuum) 375.00 kN
Isp (1 atm) 70 s
(vacuum) 380 s
Fuel consumption 20.13 Units of fuel/s
Thrust vectoring 3.0 °
Electricity generated 8.0 ⚡/s
Testing Environments
On the surface Yes
In the ocean Yes
On the launchpad Yes
In the atmosphere Yes
Sub-orbital Yes
In an orbit Yes
On an escape Yes
Docked No
Test by staging Yes
Manually testable Yes

The RE-J10 Wolfhound liquid fuel engine is an efficient upper stage engine.

Usage

The Wolfhound's vacuum specific impulse is significantly higher than any other stock/DLC bipropellant engine, making it one of the most effective engines for deep space travel.

It has higher thrust, but a lower thrust-to-weight ratio, than other vacuum-oriented bipropellant engines such as the Poodle and Terrier. So to some extent the Wolfhound bridges the gap between those engines and the liquid-fuel-only Nerv, which has a much higher Isp and much lower TWR.

Product description

Woof! With the largest bell for its size, this upper stage engine will leave your ears ringing.

Rockomax Conglomerate

Variants

As of version 1.4.1 this engine has two models that can be switched in the editor.

Shroud variant
Bare variant
The different variants of the engine

Trivia

Real-world comparison

The Wolfhound was inspired by the American AJ10-137 engine used for the Apollo SPS. Other variants of the AJ10 were also used for the Space Shuttle's Orbital Maneuvering System and on the Orion service module.

Unlike the Wolfhound, the AJ10 engines are quite lightweight, and they don't have exceptional specific impulse. (Rather than the liquid hydrogen, they use less energy-dense hydrazine-based hypergolic fuels, for storage and reliable multiple firings on longer missions.)

Changes

1.6
  • Renamed from 'RE-J10 "Wolfhound" Liquid Fuel Engine AJ10' to 'RE-J10 "Wolfhound" Liquid Fuel Engine'
  • Moved tech from Heavy Rocketry to Very Heavy Rocketry
  • Increased unlock cost from 6200 to 12000
  • Increased cost from 1680 to 3000
  • Increased mass from 2.5 to 3.3
  • Improved Isp
1.4.5
  • Added ModuleTestSubject
1.4.1
  • Initial Release