Difference between revisions of "J-X4 "Whiplash" Turbo Ramjet Engine"

From Kerbal Space Program Wiki
Jump to: navigation, search
(+Details vs Basic Jet Engine. +Turbo vs RAPIER race)
(+ == References ==)
Line 21: Line 21:
* Initial Release
* Initial Release
== References ==
[[Category:Jet engines]]
[[Category:Jet engines]]

Revision as of 05:53, 5 August 2014

J-X4 "Whiplash" Turbo Ramjet Engine
Part image
Jet engine by
C7 Aerospace Division
Radial size Small
Cost (total) 2 250.00 Funds
Mass (total) 1.80 t
Drag 0.2
Max. Temp. 2000 K
Impact Tolerance 7 m/s
Research Hypersonic flight.png Hypersonic Flight
Unlock cost 18 000 Funds
Since version 0.15
Part configuration jetEngineTurbo
Jet engine
Maximum thrust 130 kN
Isp (max) 4000 s
Fuel consumption 0.66 Units of fuel/s
Intake air consumption 5.30 Air unit/s
Thrust vectoring 1 °
Testing Environments
On the surface ✓ Yes
In the ocean ✓ Yes
On the launchpad ✓ Yes
In the atmosphere ✓ Yes
Sub orbital ✓ Yes
In an orbit × No
On an escape × No
Docked × No
Test by staging ✓ Yes
Manually testable ✓ Yes

The TurboJet Engine is an air-breathing engine which requires liquid fuel from fuel tanks and intake air. It is worth noting the intake air flows everywhere in whole craft so the placement of air intakes on the craft does not matter.


The TurboJet Engine can provide lots of thrust in high altitudes. At almost all altitudes it generates more thrust than the Basic Jet Engine, but it has a much lower specific impulse at most lower altitudes and is heavier by 0.2 tons.

It is a virtual necessity for SSTOs and demonstrated to be faster and more fuel efficient coupled with Rockomax 48-7S rocket engines than the hybrid aspirated rocket R.A.P.I.E.R. Engine[1]

Product description

A standard air breathing engine. This model utilizes an array of rotating fins to enable limited range thrust vectoring. This engine chokes in thick atmospheres and will only operate efficiently in the thinner air, due to its high performance ram air intakes.

Created by: C. Jenkins


The internal part's name is turboFanEngine which is another kind of jet engine. In real life, a turbojet engine's fan pulls all the air from the intake through a combustion chamber, as opposed to a turbofan in which some of the air sucked in bypasses the chamber and is shot out of the back without being burned at all. The turbojet is more efficient at high speeds and in thinner atmospheres, although turbofans are much quieter and are very efficient when moving slowly. This is why turbofans are almost exclusively fitted on commercial airliners, and turbojets are more common on supersonic planes.


  • Initial Release


  1. Unoffical fan-made video "[KSP V.23 -Vid#65- SPACE RACE . No Mods.]" by YouTuber vaos3712