Wcmille

Ever notice that some engines just feel "better" than the others?

Here's why:
The Flea has the highest Thrust-To-Mass (TMR) ratio (426.667).
The Twinboar is next @ (307.7). It's Isp is better than the Flea.
The Hammer has lower TMR and Isp than the Twinboar. It's just worse.
The Mammoth has TMR of 266, but better Isp than the Twinboar. The TMR of the Vector is only a little worse.
The Mainsail has the same TMR as the Vector, but worse Isp than the Mammoth.
The Rhino has a TMR of 222.2, with an Isp of 340, which is pretty darn good.
The Rhino is just better than the Skipper both in Isp and TMR.
The Poodle is just better than the Swivel and the Terrier.