George,

 

 While I hate the noise and ultimately will need to do something about it, after 15 years of building I'm ready to fly for a while. I'll leave the experimentation to somebody else.

 

 I was willing to give the DNA a try because it was relatively inexpensive and being off the shelf, relatively easy. It was also ineffective. Now if you or somebody else builds your design and proves it works I'd be willing to give it a try, but I dont want to invest my time to fabricate another failure.

 

 I'd give Al's tangential a try if I could figure out how to make it fit.

 

Mike Wills

RV-4 N144MW

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

From: George Lendich

To: Rotary motors in aircraft

Sent: Thursday, October 01, 2009 2:02 PM

Subject: [FlyRotary] Re: Quiet is Deafening

Bill,

I have net Ian Beadle in Perth, I think his airstrip is slightly NW of Perth, but didn't get out to the airstrip to see the plane.

 

With all the experimentation on exhausts I'm wondering why people don't try the exhaust that Bill Jepson and myself designed - I have put it up here a number of times.

Does it appear too difficult !?

George ( down under)

 If you want to have a quiet rotary powered plane, you need to get someone in Australia to talk with Ian Beadle to see what he has done with his RV6 powered with a Renesis.

This plane is quiet!  I don’t know where Bindoon is located….

 

Bindoon Western Australia Melanie takes flight in Ian Beadle RX8 rotary engine powered RV6

 

http://www.youtube.com/watch?v=uZ4NqGv6SwQ&feature=related

 

Bill B

 

 

---

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle
Sent: Thursday, October 01, 2009 11:36 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Quiet is Deafening

Kelly,

 

You just need to fly at Mach 1 so you stay ahead of the sound.  ;-)

 

Can anyone report on the effectiveness of the tangential muffler in actual real world situations?  (As I recall Al G. is running a tangential muffler on his Velocity.)  I ask because I'm in the process of building one for my Lancair with the hopes that it will work better than the DNA muffler that I'm currently running.  I think it will work better at reducing the noise level in the cabin, but at what cost to power?  Hopefully, this will save me the cost of a new Zulu ANR headset.  Comments appreciated.

 

Mark S.

On Wed, Sep 30, 2009 at 10:01 PM, Mike Wills <rv-4mike@cox.net> wrote:

Kelly,

 

 If you think the quiet is deafening go fly behind a rotary - now thats deafening!

 

Mike Wills

RV-4 N144MW

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

From: Kelly Troyer

To: Rotary motors in aircraft

Sent: Wednesday, September 30, 2009 7:15 AM

Subject: [FlyRotary] Quiet is Deafening

 

Anyone out there ??.....................<:)

--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold

 

-------------- Original message from "Patrick Panzera" <panzera@experimental-aviation.com>: --------------

Hey gang!

 

I came across a rare find this weekend.

Any serious rotorhead will certainly appreciate this.

 

Bluelines from 1973 of the General Motors Wankel Rotary engine.

 

I just put them up on eBay

 

http://tinyurl.com/GM-Rotary-drawings

 

Pat