So.. shooting in a small space in an Avro Lancaster WW2 bomber (whilst flying) can any one suggest overlap parameters. I will be shooting with a D2X ,180 lens & Roundshot VR head.
I heed to your astimably advice

Hi Nik!
 
Hmmm... if I was offered the same assignment - you'd be on the short list of people I would contact for advice - your work is exquisite; and I have no personal experience with your pano set-up.
 
But...
three around would seem to be the shot schedule.
 
And I would urge you to consider f/5.6 as your aperture of choice - seems to be the sweet spot for fisheyes in extremely confined quarters...
 
Plus consider the hyperfocal settings for your lens to max the DOF for this tight environment - which for most "typical" fisheye panos is usually irrelevant given their huge DOF.
 
Best wishes on this wonderful opportunity...
possibly you also could audio capture the droning of those Rolls Royce engines!

Hi Jim, good to hear from you, would 3 give me enough to stitch a 360 cylinder, I also have to add the venus and nadir, um could be tricky given the vibrations I may just go for the 28/220 roundshot for the aerial shot and do the sphere shots when the plane is on the deck.  
 
Good call on 5.6 I was using 11 and it didn't seem sharp across the plane (excuse the pun) of focus.
 
Yes sure with all the other kit I have on board \ I think a Nicam recorder would fit in just fine. I will do this for you.
 
Regards, Nik