Cowl/FAB clearance

McFly · #1 04-24-2006, 11:49 AM

What are you guys getting for clearance between the left side of the FAB and cowl? I am only getting about ?? and this was after fabricating my own offset mounting plate? Is ?? enough? Sure seems close. Thanks.

painless · #2 04-24-2006, 02:18 PM

That sounds about what I have in spots. I ended up altering the shape of my FAB a tad on that left side to make more clearance with the cowl scoop. I could tell that the FAB was hitting down there on startup and shutdown by seeing scuff marks in the foil protective heat shield I had placed there in the cowl scoop.

I suggest that you run the engine a couple times during your checkouts prior to your first flight and check the FAB for scuffing and then you will know where and how much to alter it.

Regards,

Build9A · #3 04-24-2006, 03:02 PM

I had chafing on my FAB airbox on the left lower side. I modified mine at annual. If you have 1/2" clearance you should be good to go. Jack