12.5" Profile. Note the "strings".

 I'm just about complete with Richard's 12.5" telescope with a Zambuto mirror. This is an F5.74, so it's a longer focal length. Notice the "strings" that add rigidity to the scope. The secondary and spider are Protostar and the focuser is a Feather touch. Very nice. A nifty feature are two corner eyepiece holders on the inside of the rocker box. These also add a bit of rigidity as well.

Rear of the 12.5" scope with fan.

Rocker Box with Eyepiece "corner" trays.

Protostar Secondary and Spider.
Feathertouch Focuser.