XS Cowlings

[Tony Krzyzewski <tonyk@kaon.co.nz>]

My XS cowlings have been supplied without any of the holes cut out. My copy of

the 914 firewall forward manual only mentions cutting off the flat panel at the

back of the radiators and states that all of the other holes will have been cut

out in the delivered product.

Could someone please tell me how big the lip is around the propellor hole, or 
conversely, tell me how big the propellor hole is so that I can make the hole.

Thanks

Tony