Mailing List flyrotary@lancaironline.net Message #8553
From: kevin lane <n3773@comcast.net>
Subject: Re: [FlyRotary] Rusty's 3rd intake progress
Date: Sun, 23 May 2004 21:10:50 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
I assume that plate is part of your plenum?  on mine I had the welder lay a fat bead both inside and out.  I then took a carbide round over bit and carved a radius with the router before welding the plenum together.  that radius apparently makes a significant difference in air flow. (my 20B intake has 6 tubes!)
Kevin Lane  Portland, OR
e-mail-> n3773@comcast.net
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----- Original Message -----
Sent: Sunday, May 23, 2004 7:37 PM
Subject: [FlyRotary] Rusty's 3rd intake progress

Greetings all,
 
Attached are a few pics of where I stand on intake #3.  I'm quite happy with the fit, and hope I don't screw it all up with the TIG welder.  The inside is actually a better shape than what you see on the outside, and while it's not perfect, I'm quite happy with it.  On a scale of 1-10, where 10 is a perfectly smooth shape, the inside is probably an 8 now, where it was maybe a 3 before.  In the pic, you can see the injector holes that I bored in the bosses on the secondary runner. 
 
Amazingly, the stock primary fuel rail even fits under the intake!  The old steel rails that I had fit, but have one of the hoses in the way. The aluminum rail that Kelly sent (thanks again), has banjo fittings that can be rotated.  I didn't have it at the hanger with me today, but I'm sure it will fit as is.  This is really an unexpected bonus. 
 
I'm still hopeful of a ground run next weekend, and flight the weekend after. 
 
Cheers,
Rusty (don't make me deploy the secret weapon, though I confirmed that it will fit <g>)
 
 


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