Rickmerrill
Senior Chief Petty Officer
- Joined
- Mar 13, 2014
- Messages
- 686
Yep, your pic are showing up! I'm a little confused. Are you talking about two separate areas that need fixes? On the hole if you follow Wood's layup you'll have CSM, 1708, 1708, 1708 inside. Plus, I'm guessing he'll say something like 1708, 1708. CSM, CSM on the outside. That's plenty strong. You don't need a fillet there - they are to help cloth go over a 90 degree inside bend. On the outside I see a few places where you should grind your taper a little wider say 3" from the edge of the hole. You want good surface area for bonding and you need enough depth so as you build up layers it't not sticking out past the hull surface. On grinding woven roving I don't know but always wondered, hope you get an answer. I'll throw out a guess and say you need to grind enough so all of the contact area has been scuffed (no shiny spots left). Don't worry about it affecting hull integrity, you'll be restoring it with you're lay ups.