Bill Greenwood wrote:
Rich, I saw the cowl fasteners of the aftermarket screw in type, but didn't think it was worth mentioning. It really doesn't affect the flying or servicing of the plane and it only makes a small difference in the outside appearance. Now if you are going for Osh grand champion it would be a small deduction, if the judges noticed this.
Personally, I like the original type cowl fasteners. Obviously they worked fine when the planes were new and in service. I have read of and talked to some RAF ground crew and never heard them complain about the fasteners. The are almost like a Dzus. It can be a problem now getting them set up right, but there are new ones made by Microscan on the Isle of Wight, and they are like the originals, as far as I know.
It also helps to be British. Ray can, if needed , have the cowlings off, By Himself, and be done in time for tea. The side ones are pretty easy, the top harder and the bottom just takes some time.
And usually they only need to come off about every 35 hours for an oil change, etc.
Just in case you guys were not aware?

Griffon and Merlin cowling fasteners are totally different in design. Supermarine type for the Mk IX TE308 and Amal type for the MK XVIII SM969.
PeterA