- Preliminary CAD work -

38" f3.5 (f4.2 after coma corrector) cellular primary (175 lbs) using a 1" face and back thickness with 3" tall central (radial) ribs.

Effective focal length at f4.2 = 4050mm

Central square section is 46" with a 36" diameter declination drive wheel. 2.0" diameter truss tubes are used.

A 4" ID focuser using a 3.125" OD coma corrector is used above. One inch wall thickness on the 4" ID focuser.

Finished OTA will weigh roughly 250 lbs and will be roughly 10.4 feet in length, tip to tail, as shown.