LV-1 "Ant" Liquid Fuel Engine

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

Radial size Tiny, Radial mounted
Cost (total) 110.00 Funds
Mass (total) 0.02000 t
Drag 0.2
Max. Temp. 2000 K
Volume  ?
Impact Tolerance 7 m/s
Research Propulsion systems.png Propulsion Systems
Unlock cost 1 500 Funds
Since version 0.18
Part configuration liquidEngineLV-1.cfg
Liquid fuel engine
Maximum thrust (1 atm) 0.51 kN
(vacuum) 2.00 kN
Isp (1 atm) 80 s
(vacuum) 315 s
Fuel consumption 0.13 Units of fuel/s

Thrust vectoring No
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-1 "Ant" Liquid Fuel Engine is the smallest liquid fuel engine available.

Product description

What is this, an engine for ants?

Jebediah Kerman's Junkyard and Spacecraft Parts Co


Although the Ant has extremely poor specific impulse in atmosphere, it provides decent specific impulse in vacuum. In combination with its low mass and tiny size, this makes it a good choice for small satellites.

The radially-mounted LV-1R "Spider" has a similar design, the same weight, and the same vacuum thrust. The Spider adds atmospheric performance and thrust vectoring at the cost of vacuum efficiency.


As of version 1.7 this engine has two models that can be switched in the editor.

Shroud variant
Bare variant
The different variants of the engine


  • The product description is a reference to the movie Zoolander.


  • New model and texture
  • Added 2 variants
  • Specific impulse at sea level reduced from 85 to 80.
  • Mass, cost, thrust, and fuel consumption decreased; specific impulse changed. Fuel gauge added. Given proper nickname.
  • Cost increased from 150 to 350 (and made meaningful)
  • Thrust increased from 1.5 to 4 kN.
  • Initial release