THO measurements

For Tony, Phil and I took some measurements in the THO. Physically, we measured the ring. Then we guestimated good rotational speeds for the roof. Tony wants to implement a hand-crank drive.

We measured the ring. I.D. is around 133 inches. We measured from several points. Minimum was 132.75"; max. 133.25".

We turned the roof a ¼ revolution at different speeds. Very fast took 15 seconds. Fast took 30 seconds. A ¼ turn in 60 seconds might be reasonable. The thought of polar aligning and then doing a 180 to view southern objects and taking 2 minutes, on paper, sounds like a long time.

[ed: Tony didn't like our time estimates...]