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Building Tips and technical articles. => ARF'S => Topic started by: Matt Brown on June 11, 2020, 02:44:12 PM

Title: Pipe in SV11 arf?
Post by: Matt Brown on June 11, 2020, 02:44:12 PM
It all looks like it will fit easy enough! I’ve been flying a K77 with rear muffler in my SV11 arf. I got a header and carbon pipe for future planes. I got to looking at the “tunnel” area on my plane and got the idea to swap the header muffler for the full pipe. I’m concerned about cutting away the bottom of the fuse to get the pipe in and out. Will I be losing too much structure? I thought I’d place a bulkhead at the backend of the pipe and seal the tunnel area with a couple coats of dope. Not sure about supporting the back end of the pipe. Maybe a standoff and a tie wrap?
I’m probably going to start on this shortly but I’ll keep an eye on this thread in case I’m making a big mistake!

Thanks, Matt
Title: Re: Pipe in SV11 arf?
Post by: Doug Moisuk on June 11, 2020, 05:05:59 PM
Many have done that including myself. Works great.
Title: Re: Pipe in SV11 arf?
Post by: Matt Brown on June 11, 2020, 05:57:05 PM
Quote from: Doug Moisuk on June 11, 2020, 05:05:59 PM
Many have done that including myself. Works great.


Anything I should be aware of or watch out for?
I’ve got the tunnel cut out and waiting on last coat of dope to dry now. Need to figure out a method to clamp the pipe in place so it can’t move fore or aft.


Matt
Title: Re: Pipe in SV11 arf?
Post by: Chris Fretz on June 11, 2020, 10:01:19 PM
Quote from: Matt Brown on June 11, 2020, 05:57:05 PM

Anything I should be aware of or watch out for?
I’ve got the tunnel cut out and waiting on last coat of dope to dry now. Need to figure out a method to clamp the pipe in place so it can’t move fore or aft.


Matt
Use this to mount it... 
http://www.ohio-superstar.com/dave-brown-product-line/tuned-pipe-mount
Title: Re: Pipe in SV11 arf?
Post by: Brett Buck on June 14, 2020, 04:10:57 PM
Quote from: Matt Brown on June 11, 2020, 05:57:05 PM

Anything I should be aware of or watch out for?
I’ve got the tunnel cut out and waiting on last coat of dope to dry now. Need to figure out a method to clamp the pipe in place so it can’t move fore or aft.

   The rear mount should have nothing to do with holding it fore/aft, just up/down/side/side. The length it held by the ty-raps on the header and pipe.

    Brett