RCU Forums - View Single Post - How to cut and drill Cowl?
View Single Post
Old 08-05-2007 | 02:38 PM
  #1  
CaptDave2
My Feedback: (2)
 
Joined: Jan 2005
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
From: Tucson, AZ
Default How to cut and drill Cowl?

Hey Guys,

Please suggest best method or cutout size and shape to get air to the carb for a Richmodels Yak 54 with an OS 46 FX sidemounted.

See the pic where inner cowl lip meets at the carb mouth, rather obstructing the induced airstream. Without an air intake cut in cowl, I suspect low pressure area inside lip of cowl will starve carb for air.

This is the motor I WILL use, underpowered or not, with Slimline Pitts style muffler to exhaust at bottom of cowl. Any tips for marking, cutting and protecting edges of cowl are appreciated. It appears this cowl is fiberglass reinforced plastic.

Cutouts or holes for glow plug, needle valve, and exhaust pipes will be made with a Dremel tool. Also plan to mount hardwood blocks on front edge of fuse former for cowl screws. Do you use grommets to prevent cracks from screw holes?

[sm=confused.gif]
Attached Thumbnails Click image for larger version

Name:	Ay74052.jpg
Views:	32
Size:	55.3 KB
ID:	736207   Click image for larger version

Name:	Vs55426.jpg
Views:	35
Size:	65.4 KB
ID:	736208