Greg

Thanks for your help.

Hmmmmm,  154mm that leaves me shy by 9/16". Either I extend the cowling or I laminate a new one.

This engine is begging to get mounted in the Tucano. It puts out 2 1/2 hp and is boost limited by an undersize carb. I'm looking for a gray one. Nitroplanes tells me they will have inventory in a week or two but every time I go to their web site it's not in stock. Will try again soon.

Russ