Did you ever consider to just make the interior of the shuttle fit the exterior instead of the other way around?
I don’t want to totally derail this thread so I’ll try to be concise.
The exterior mockup of the TOS shuttlecraft was only about 22ft. long—thats damn small. There is absolutely zero way to make the standing interior we saw onscreen fit into a 22ft. vehicle.
If we go the other way and make the exterior big enough to hold the interior as we see it onscreen we get a vehicle of about 32ft. Thats just too big (remember you also have to consider height and width) to be properly accommodated within the
Enterprise’s hangar facilities, and you have to accommodate four such vehicles. Having a 32ft. shuttlecraft also complicates step-up height for entrance and exit of the craft.
So the truth, the “real” shuttlecraft, has to be somewhere between the two extremes.
There remains an onscreen clue to the original intent for the shuttlecraft’s interior size: the chairs. The chairs are set low and unusually close to the deck. And in an interview with Stephen Whitfield, who built the shuttlecraft for TOS, he claims the original set was to have a lower ceiling. But while it was being constructed the decision came down to raise the ceiling to accommodate/hide overhead filming lights, the bulky cameras of the day and to allow the actors to stand more comfortably. Even so note how often some of the characters stoop as if the ceiling were actually lower. Anyway, by the time the decision was made to make the ceiling higher the low set chairs had already been ordered.
This info was very helpful. It gave me the idea to see how much smaller I could make the interior without drastically altering its familiar appearance. So while I retained the width of the interior set I was able to shorten the cabin length by eliminating extraneous space between the seats and a bit of the aft compartment. I did keep the angle of the forward bulkhead even though it doesn’t match the angle of the exterior forward hull. I also raised the seat height a bit to help eliminate some of the space between the chairs and to make the seating position more natural and comfortable.
When I had a workable interior I then scaled up the exterior to accommodate it. When it fit lengthwise I then lowered the interior’s ceiling until it all fit within the confines of the now enlarged exterior hull.
The exterior is proportionately wider than the interior, but that was fine because it could accommodate the between hulls mechanicals the interior set suggested. My shuttlecraft had a believable inner and outer hull. Same above the ceiling and below the deck. It all fit with what we saw on television.
The end result was a shuttlecraft 27ft. long with an interior ceiling of about 6ft. So most people would have to stoop a bit inside, which is what we saw some characters doing. And a note of interest: if you take away the nacelles and the aft landing strut you’re left with a main hull about 24ft. long—an interesting coincidence (which I wasn’t aiming for) with Kirk’s reference to “a twenty-four foot shuttlecraft.”
There does remain one glaring inconsistency: there is absolutely no way whatsoever to match up the interior “windows” with the exterior panels on the forward hull. It’s impossible because the interior is not wide enough and the angle of the forward bulkhead is steeper than the forward exterior hull. Nothing works. In the end I simply rationalized the interior “windows” are actually overhead viewscreens similar to those we see on the
Enterprise’s bridge. It’s just as well because those “windows” are simply set too high for anyone to see out of when seated. There is no way those “windows” could be used for actual visual piloting.
Now back to our regularly scheduled thread subject.