I haven't placed the crew hatches yet, but this will definitely be a consideration. In general it will probably work like the Shuttle. The caveat above applies, actually implementing any abort logic is pretty far down the list.
There's some differences with the Shuttle though. Bailing out via overhead windows or hatches would probably work better for the Skyhammer than the Shuttle, since there isn't a central tail fin to collide with on the Skyhammer. Because of that tail fin, the Shuttle's preferred means of bailing out was out the side-hatch, using a extensible pole to get the astronauts out underneath the wings so as to not collide with them. Your problem isn't with wings so much as the Skyhammer's body, so I'm guessing you'd have to use something similar to the Shuttle's escape pole to get the crews clear.
In theory at least, if not in sim.:lol:
Is that true? I'm not a Shuttle operations expert by any means, but I doubt they would be allowed to fly a payload they couldn't land with if they had to abort.
Digging around online shows the limit is on payloads intended to land on the Shuttle normally; I'm not sure about aborts. I'll look into it deeper and see what comes up.
Since I've already put my foot in my mouth, it's probably a good time to admit I'm not a expert on the Space Shuttle. I do try to play the part, though I'm not on TV yet.
You have to worry about propellant dumping, but you probably have to dump the orbiter's internal propellant before a landing (abort or no) anyway.
I do know that for the Space Shuttle, propellent dumps with it's internal propellent(OMS and RCS) was done by firing the RCS thrusters, burning off propellent until mass was down to where it was wanted. For CentaurG/G-Prime, if I read it right there was dump valves located in panels on the aft end of the orbiter, one on each side of the orbiter in the area between the OMS pods and the wing.
For Skyhammer, aside from things like explosion risks, you also ought to be careful to place the propellent dumps so that they don't end up causing rotations, translations, or other propulsive stuff.
Again, in theory.