This Mod adds  a set of cargo pods available as ship boosters

Cargo Pod - requires engineering 1 space 50
Cargo Pod Mk2 - requires engineering 3 space 75
Cargo Pod Mk3 - requires engineering 4 space 100
Cargo Pod Mk3 - requires engineering 5 space 150

In all cases speed and acceleration are -5 and maneuverability -10

The file is uploaded as a .zip. Just rename the extension to .mpk and put it in your mod directory