Astro-Physics 24" Ribbed Mounting Plate??????????
For larger instruments, the ribbed structure of this AP mounting plate provides maximum support. It was created with the AP 1200 & 1600 in mind.
The process starts with a thick aluminum plate and a strong rib structure is carved into the underside. The final result is 1.5" thick, 24" long and 7.6" at its widest point. The width of the plate tapers to 5.5" at each end. A pair of keyhole slots that measure 3.2" between centers are provided at each end. The distance between these pairs of holes is 23". Due to the ribbed structure, you may not be able to drill additional holes to suit your mounting rings. The plate only weighs an amazing 9.5 lb. (4.3 kg.)