LV-1R "Spider" Liquid Fuel Engine

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LV-1R "Spider" Liquid Fuel Engine
Part image
Liquid fuel engine by
Jebediah Kerman's Junkyard and Spacecraft Parts Co

Radial size Radial mounted
Cost (total) 120.00 Funds
Mass (total) 0.02 t
Drag 0.2
Max. Temp. 2000 K
Impact Tolerance 7 m/s
Research Precision propulsion.png Precision Propulsion
Unlock cost 1 750 Funds
Since version 0.21
Part configuration liquidEngineLV-1R
Liquid fuel engine
Maximum thrust (1 atm) 1.79 kN
(vacuum) 2.00 kN
Isp (1 atm) 260 s
(vacuum) 290 s
Fuel consumption 0.14 Units of fuel/s

Thrust vectoring 10 °
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 LV-1R "Spider" Liquid Fuel Engine is the radial version of the LV-1 "Ant" Liquid Fuel Engine. It has, together with the LV-1, the lowest thrust for a liquid fueled engine in the game. Only the PB-ION Electric Propulsion System has a lower thrust. It also has a low specific impulse and moderate thrust-to-weight ratio. The radial configuration allows for a greater variety of mounting points.

Product description

Adapted to appease engineers who were outraged at the puniness of the LV-1, the radial mounted LV-1R offers an appealing solution: "Just add more". Point away from face.


  • Gimbal increased from 8° to 10°.
  • Cost increased from 150 to 650 (and made meaningful)
  • Thrust increased from 1.5 to 4 kN.
  • Initial release