S3 KS-25x4 "Mammoth" Liquid Fuel Engine

S3 KS-25x4 "Mammoth" Liquid Fuel Engine
Liquid fuel engine by Kerbodyne
Radial size		Extra large
Cost	(total)	39 000.00
Mass	(total)	15.000 t
Drag		0.2
Max. Temp.		2000 K
Impact Tolerance		20 m/s
Research		Very Heavy Rocketry
Unlock cost		115 000
Since version		0.23.5
Part configuration		part.cfg
Maximum thrust	(1 atm)	3 746.03 kN
	(vacuum)	4 000.00 kN
Isp	(1 atm)	295 s
	(vacuum)	315 s
Fuel consumption		258.98 /s
Thrust vectoring		2 °
Electricity generated		12.0 ⚡/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-25x4 Engine Cluster is a liquid fuel engine with four nozzles. This is the engine with the highest thrust and, compared to the thrust, high specific impulse. It doesn't allow placing additional stages beneath the engine cluster. This is the second liquid fuelled engine after the R.A.P.I.E.R. Engine which uses multiple nozzles.

The KS-25 might be a reference to the Space Shuttle Main Engines which are also named RS-25, especially as it was introduced as a Space Launch System component which uses four RS-25 engines.

Manufacturer's description

“

Designed for usage as a first stage, this engine uses four of Kerbodyne's KS-25 rocket motors. This is the first in a series of designs that move away from the pattern of simply increasing the engine and nozzle size on a rocket. — Kerbodyne

”

Changes

0.24

• Cost increased from 5900 to 32400 (and made meaningful)

0.23.5

• Initial release