RE: Redwing 30cc Sbach Build
Just so you know. I'm working on another project for my wife and I don't have the time to put into the plane build like I normally have. That is the reason that things are in bits and peaces. Whenever I can I put in an hour there or a half hour here.
While in piddling I decided to put some rough clearances in for the J=Tec muffler. I'll pick on it first. All the manufacturers of these mufflers don't take into consideration that these mufflers have to fit inside of cowls. Most of them extend to far in front of the front mounting screw. I've had this problem before. I'm one of the lucky ones that can fabricate and even weld aluminum. If you will notice the front of the cowl is touching the tip of the muffler. I have it marked and will reduce this area as needed. I have in the past cut a hole in the cowl to clear that area and it cracked. So this time I'm changing the muffler.
You can probably guess by now that I don't like to use a dremel tool for grinding fiberglass. I try to avoid F/G Dust at all cost. It makes me itch. So i used a drill to outline the corners and then a hole saw to give me enough clearance so I can get my tin snips in there to cut the clearance hole for the exhaust. Will be nibble ing on this in the future.
I also need 3 1/4 in. standoffs to properly set the hub of the engine. This is my second gripe. If JC would have made the prop hub 12mm longer I would have been able to have the engine mounted already and wouldn't have had to butcher up the cowl. It doesn't matter how well Henry or Milton listen. Roomer has it that Standardizing falls on def ears at JC. So this problem will probably never be solved. Even if you say that you know other engines already do this.
I don't have Standofs that size but have some longer ones and the rest I'll make up with Aircraft Ply. Lite ply is no good cause it crushes to easy.
Thats it for now.