Ike: Low on fuel

[Lohan2008]

32 t vessel, 600 (both) fuel x3 Nuke engines; is it enough to get to Duna ? Doubt it would go to Kerbal.

Edited May 5, 2014 by Lohan2008

[Taki117]

you should be able to get to Duna with that. (I suggest aerobraking) you should check out the rocket equation to see how much dV you have.

[Lohan2008]

Yep: got lucky with the legs holding me up at 30 degrees, landed on side.

[cantab]

I'll assume it's 32 tons full. Fuel weighs 5 kilos a unit, so you have 3 tons of fuel, and assuming your ratios are balanced 3.67 tons of oxidizer. Plugging the numbers into the rocket equation, 800 * 9.82 * ln (32/25.33) = 1800 m/s of delta-V.

http://wiki.kerbalspaceprogram.com/w/images/7/73/KerbinDeltaVMap.png

That would have easily made it from Ike back to Kerbin. As you've shown it also sufficed to land on Duna, but I reckon you'll be very close for getting back into Duna orbit.

[Lohan2008]

transfer of crew to command pod.

[LethalDose]

You may be able to get that back to Kerbin with a properly timed Oberth maneuver. When your return window opens, leave Ike's SoI going retrograde, then reduce your periapsis to just above Duna's atmosphere. Burn for your return when you're at periapsis around Duna.

Or send a refueler with a claw. Or a rescue vehicle.