From Kerbal Space Program Wiki



The LV-1 "Ant" Liquid Fuel Engine is used to provide thrust to a rocket and is currently the weakest liquid fueled engine available. As of 1.0, it has extremely poor specific impulse in atmosphere, but decent specific impulse in vacuum; in combination with its low mass and tiny size, this makes it a good choice for small satellites. There is a radial derivative of this engine called LV-1R Liquid Fuel Engine featuring a similar design and vacuum thrust but very different Isp profile at a slightly higher cost.

Product description

“ What is this, an engine for ants? ”

This is a reference to the movie Zoolander.

Variants

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

The different variants of the engine

Changes

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.