Difference between revisions of "S3 KS-25 "Vector" Liquid Fuel Engine"

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The ''KS-25'' is a reference to the [[w:Space Shuttle Main Engine|Space Shuttle Main Engine]]s which are also named ''RS-25''. This is likewise shown in that the part files are named variants of "SSME".
 
The ''KS-25'' is a reference to the [[w:Space Shuttle Main Engine|Space Shuttle Main Engine]]s which are also named ''RS-25''. This is likewise shown in that the part files are named variants of "SSME".
  
It is recommended that the gimbal be reduced or locked outright on lighter crafts with [SAS] enabled, or the gimbal will easily tear crafts apart.
+
It is recommended that the gimbal be reduced or locked outright on lighter crafts with [[SAS]] enabled, or the gimbal will easily tear crafts apart.
  
 
== Product description ==
 
== Product description ==

Revision as of 12:47, 3 December 2015

S3 KS-25 "Vector" Liquid Fuel Engine
Part image
Liquid fuel engine by
Kerbodyne

Radial size Radial mounted, Small
Cost (total) 18 000.00 Funds
Mass (total) 4.000 t
Drag 0.2
Max. Temp. 2000 K
Impact Tolerance 22 m/s
Research Tech tree very heavy rocketry.png Very Heavy Rocketry
Unlock cost 115 000 Funds
Since version 1.0.5
Part configuration SSME.cfg
Maximum thrust (1 atm) 936.51 kN
(vacuum) 1 000.00 kN
Isp (1 atm) 295 s
(vacuum) 315 s
Fuel consumption 64.74 Units of fuel/s
Thrust vectoring 10.5 °
Electricity generated 3.0 ⚡/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 S3 KS-25 "Vector" Liquid Fuel Engine is a liquid fuel engine with a single nozzle. It is the heaviest and most powerful 1.25m engine by far, with a mass and thrust between that of the 2.5m "Skipper" and "Mainsail" engines. It also has a relatively high thrust to weight ratio. The engine, along with its four-nozzle counterpart, the S3 KS-25x4 "Mammoth" Liquid Fuel Engine, has moderate efficiency in vacuum and the highest specific impulse at sea level for any liquid fuel engine. Unusually, the engine is both node- and surface-attachable. The defining feature of the engine is an extremely large gimbal range of 10.5°. These advantages are somewhat offset by its comparatively high tech requirements and cost.

The KS-25 is a reference to the Space Shuttle Main Engines which are also named RS-25. This is likewise shown in that the part files are named variants of "SSME".

It is recommended that the gimbal be reduced or locked outright on lighter crafts with SAS enabled, or the gimbal will easily tear crafts apart.

Product description

Kerbodyne's flagship engine, the KS-25 excels as a first stage engine through its high thrust-to-weight ratio and exceptional sea level efficiency. Kerbodyne engineers achieved this by running the engine in a staged combustion cycle and at extremely high chamber pressures. Special new alloys had to be invented to suppress the engine's tendency to become a bomb. The single version is designed with very durable components and high reusability, as well as higher gimbal range, but because of that is also heavier than its expendable counterpart used in first stage clusters.

Kerbodyne

Changes

1.0.5
  • Initial release