Estes LTV Scout, Build, Part 4, Engine Mount Gussets

These are probably the thinnest centering rings I've ever run across - The thickness of two layers of 110 lb. cardstock. I've used gussets in the past to beef up an engine mount.

   

I wanted the gussets at a 120 degree spacing or close to it.

A copy paper strip was rolled around the BT-20 tube. Two even folds were made giving three gusset positions.

Wrap around the tube and mark at the folds and where the strip meets.

This is why I save excess balsa left over from other kits.

3/32" thick balsa strips were cut to fit between the two centering rings. These were made a little wide to be sanded even with the outside ring edge after the glue dries.

Here's the final, finished engine mount. 

It's always surprising how much stronger gussets make the mount feel.

This shouldn't be considered "bulletproofing" a LPR model. Just some lightweight strengthening.