Mirror dia = 4.5"( 114mm), Glass thickness = 0.5" (12.5mm),
Focal length = 1000mm, Radius of Curvature = 2,000mm
Saggitta (central depression after grinding) = .03" (.765mm),
Shorter dia (minor axis) of Secondary = 24mm, major axis = 36mm,
Distance from Primary Mirror Centre to secondary mirror center= 870mm,
Distance from secondary centre to focal point (which is inside focuser) = 130mm

Next page (procuring material) , contents