flyrotary@lancaironline.net Mailing List Archive

Al's intake is a lovely piece of work. I would point out that the effective length of his manifold includes the throttle body itself since each barrel serves only one rotor. It's not as short as it might appear at first glance. 44 mm is the right size in this application IMO.

Tracy

On Thu, Apr 1, 2010 at 10:44 PM, Yvon Cournoyer <geryvon@videotron.ca> wrote:

Outstanding design and workmanship, thank you very much Al.

----- Original Message -----

From: Al Gietzen

To: Rotary motors in aircraft

Sent: Thursday, April 01, 2010 8:06 PM

Subject: [FlyRotary] Tuned lengths

To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Tuned lengths

Please post drawings/photos/specs...Yvon

Some photos of the intake manifold for the 20B are attached. It is 4.5” from flange to flange; the TB flange is at a slight angle to fit my installation; the TB is TWM 3003; 44mm diameter bores.

Another builder built his from my drawings and had a couple extra made. At least one is still available. The price is around $1000; I’ll have to check. That’s a real deal – by the time I had mine fabricated and heat treated it was over $2000. Let me know if anyone is interested.

Al

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