MechVal - Your Low T Auto-Co-Pilot makes the impractical possible  [ Ignore the MechJeb windows, except the 0.3 m/s2 max acceleration. The important thing to ask is How would I build those nodes? How can I tell where my low TWR vessel is going to go?] Take the guess work out of very low TRW interplanetary transfers ... How long will it take to Pe Kick ready for a departure burn? How much will Kerbin radial my orbit as I crawl out of the gravity well? Where