X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "Charlie England ceengland7@gmail.com" Received: from mail-qt1-f177.google.com ([209.85.160.177] verified) by logan.com (CommuniGate Pro SMTP 6.3.13) with ESMTPS id 1778830 for flyrotary@lancaironline.net; Fri, 03 Feb 2023 16:30:09 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.160.177; envelope-from=ceengland7@gmail.com Received: by mail-qt1-f177.google.com with SMTP id g18so4765863qtb.6 for ; Fri, 03 Feb 2023 13:30:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=in-reply-to:from:content-language:references:to:subject:user-agent :mime-version:date:message-id:from:to:cc:subject:date:message-id :reply-to; bh=78rravV+pC3AlwJd/RzgR6QpheAsTUXHR3l29McuYdI=; b=A/21vrF2OwaRHFZJbX5ttZG3iOWWYP7NUSgfQwzMA0QT5S4kQVEiwnEO36jlCFiPzV YO0ck8rhgmrVTiNkdDWcEfyD8FnGFz/wbTU692qZo8JgpPAnnq+WkJxB1fvEmeJ5T53u 57Z7wzfiuBM70jWIsME0Ev9OCmBLtTZIgnHBQv2E3ymzgyoBq6wh+9IRSCOnC2c/w0+y khLSmrGhAbh5I+tukBlVSeeT+KAeFhv4v+ySr6DpWQv/vKJ1X6fwiWEJhDEbiPkqC4vN 93/GxNPUWvAZinXThTOjBvtMqfQUrDDUwMkGzdqucV71YWTO2YMlqzcBZdpoAnONyxps 7VAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:from:content-language:references:to:subject:user-agent :mime-version:date:message-id:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=78rravV+pC3AlwJd/RzgR6QpheAsTUXHR3l29McuYdI=; b=aLk+oTLKhksdixe5nVmnsYEVe/vDRhbBS4WztfgSVUl4wF1aUrFgV856kEK2xXf7g/ oSUjI4i1gyq/dO4aQk/wxCl3EtsIRSjWGVyk7J1qjuQ2WxSLWSfNntUG8r6TdYxistEh vWnS/dXQ5R+hHLZrVTacV12k6wyNxBR/Akl2uA31veRP8G96xO4WPKkmrgpEZp0PS8iH iq+QaUQjMK+koigC5qzVP2Hf7cpNd87g/3gj3YsG2pYoLn0tS/uULknxWDLAjJSndUaJ mlwgjhxZHO27/3oJSHWWLLnLwIH5hy2EgoDE02LzMCa/F1pJ0Vb4RoEKXXNBqwXhw1lJ 9zpA== X-Gm-Message-State: AO0yUKW3uHsnIy1ttXXNetD9a0L53WI1nf+fcMWejksL6a/AihgRILaW qV/69BRAKbXZxImxHQeFU3wtMXhrvIQ= X-Google-Smtp-Source: AK7set+6nKpmNlQ6zhk+TTOB8SWCpgQJMTUfClIj1p0UOMXO/h6hTh1oaSI5Qen0ePSXezU/hK1S1g== X-Received: by 2002:ac8:5910:0:b0:3b2:1003:37e5 with SMTP id 16-20020ac85910000000b003b2100337e5mr21251610qty.55.1675459792184; Fri, 03 Feb 2023 13:29:52 -0800 (PST) Return-Path: Received: from [192.168.1.54] ([50.86.156.24]) by smtp.googlemail.com with ESMTPSA id s68-20020a375e47000000b00718e853f83csm2521653qkb.106.2023.02.03.13.29.50 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Feb 2023 13:29:51 -0800 (PST) Content-Type: multipart/alternative; boundary="------------JPEtCThotL347o0wOmGN7j6A" Message-ID: <0ae16d6c-a48a-5e69-2768-6d88cae5d87c@gmail.com> Date: Fri, 3 Feb 2023 15:31:58 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.6.1 Subject: Re: [FlyRotary] Re: Fun with AI for the rotary To: Rotary motors in aircraft References: Content-Language: en-US In-Reply-To: X-Antivirus: Avast (VPS 230203-6, 2/3/2023), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. --------------JPEtCThotL347o0wOmGN7j6A Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit For some reason, it's hard for me to believe that PL designed the Swiss Muffler. ;-) https://www.piteraq.dk/flight/muffler.html Note that this page is an excerpt from the Tony Bingelis book _Firewall Forward_, and I'm pretty sure that Bingelis was passing on knowledge picked up from the Europeans, that needed really quiet a/c to pass certification. Charlie On 2/3/2023 2:00 PM, bruce buksyk bbuksyk@outlook.com wrote: > > mickaircraft.com has posted all the old PL files. > > This is probably the exchange you are looking for. > http://mickaircraft.com/ACRE/ACRE201307/messages/20130714-exhaust-44548726.html > > Scroll to the bottom of the thread for pics/links. > > This is the Index for all the older files. http://mickaircraft.com/ACRE/ > > bruce > > Sent from Mail for > Windows > > *From: *Les C lesphoto@hotmail.com > *Sent: *Friday, February 3, 2023 1:05 PM > *To: *Rotary motors in aircraft > *Subject: *[FlyRotary] Re: Fun with AI for the rotary > > Since the PL site doesn't have any of the old information, it would be > great if somebody could post that here. > > Les Criscillo > Pilot, Brewmaster, Maker > > *From:*Rotary motors in aircraft on > behalf of Marc Wiese cardmarc@charter.net > *Sent:* Friday, February 3, 2023 9:03:14 AM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: Fun with AI for the rotary > > I think I have that PL design too. But I didn’t think it included any > inner packing of any sort? > > M > > Sent from my iPhone > > > > On Feb 3, 2023, at 9:23 AM, Le Roux Breytenbach > breytenbachleroux@gmail.com wrote: > > I have a design of the “late Paul Lamar“ somewhere in my archives. > > Don’t know if i may share it on the group ? > > That was of a proposed design of a freeflow muffler for rotaryengines. > > He shared it with all the people on the group. > > Don’t know if it was patented? > > Let me know > > Le Roux > > Sent from my iPhone > > Le Roux Breytenbach > > > > On 03 Feb 2023, at 14:53, Doug Lomheim rv9flyer13b@gmail.com > wrote: > > So where can we find the proposed “specialist in exhaust > systems” that it suggests?  For our applications that would > probably be someone on this list!? :) > > Doug > > > > > > Designing a muffler for a Mazda rotary engine requires > taking into account several factors, including: > > 1. Engine specifications: The muffler must be compatible > with the size and output of the engine. > > 2. Noise reduction: The muffler should reduce engine > noise to an acceptable level, while also allowing the > engine to function efficiently. > > 3. Performance: The muffler should not restrict exhaust > flow and impact engine performance. > > 4. Durability: The muffler must be durable and withstand > the high temperatures and vibration generated by the > rotary engine. > > A muffler design for a Mazda rotary engine could include a > straight-through perforated core, surrounded by > sound-deadening materials such as fiberglass or ceramic > wool. The muffler should be mounted using flexible > connections to reduce vibration and ensure a secure fit. > Additionally, heat shields could be used to protect the > muffler from high temperatures. > > These are general guidelines and the exact design may vary > based on specific engine and performance requirements. > Consulting with a specialist in exhaust systems is > recommended to ensure a muffler that is optimized for your > specific engine and application. > > > You're welcome. > ;-) > -- This email has been checked for viruses by Avast antivirus software. www.avast.com --------------JPEtCThotL347o0wOmGN7j6A Content-Type: multipart/related; boundary="------------SnW6LWLTbe1Bm6hYbpBywkfl" --------------SnW6LWLTbe1Bm6hYbpBywkfl Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit
For some reason, it's hard for me to believe that PL designed the Swiss Muffler. ;-)

https://www.piteraq.dk/flight/muffler.html
Note that this page is an excerpt from the Tony Bingelis book Firewall Forward, and I'm pretty sure that Bingelis was passing on knowledge picked up from the Europeans, that needed really quiet a/c to pass certification.

Charlie

On 2/3/2023 2:00 PM, bruce buksyk bbuksyk@outlook.com wrote:

mickaircraft.com has posted all the old PL files.

 

This is probably the exchange you are looking for. http://mickaircraft.com/ACRE/ACRE201307/messages/20130714-exhaust-44548726.html

 

Scroll to the bottom of the thread for pics/links.

 

This is the Index for all the older files.   http://mickaircraft.com/ACRE/

 

bruce

 

Sent from Mail for Windows

 

From: Les C lesphoto@hotmail.com
Sent: Friday, February 3, 2023 1:05 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Fun with AI for the rotary

 

Since the PL site doesn't have any of the old information, it would be great if somebody could post that here.

 

Les Criscillo
Pilot, Brewmaster, Maker

From: Rotary motors in aircraft <flyrotary@lancaironline.net> on behalf of Marc Wiese cardmarc@charter.net <flyrotary@lancaironline.net>
Sent: Friday, February 3, 2023 9:03:14 AM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Fun with AI for the rotary

 

I think I have that PL design too. But I didn’t think it included any inner packing of any sort?

M

Sent from my iPhone



On Feb 3, 2023, at 9:23 AM, Le Roux Breytenbach breytenbachleroux@gmail.com <flyrotary@lancaironline.net> wrote:

I have a design of the “late Paul Lamar“ somewhere in my archives.

Don’t know if i may share it on the group ?

That was of a proposed design of a freeflow muffler for rotaryengines.

He shared it with all the people on the group.

Don’t know if it was patented?

 

Let me know

 

Le Roux

 

Sent from my iPhone

Le Roux Breytenbach 



On 03 Feb 2023, at 14:53, Doug Lomheim rv9flyer13b@gmail.com <flyrotary@lancaironline.net> wrote:

So where can we find the proposed “specialist in exhaust systems” that it suggests?  For our applications that would probably be someone on this list!?     :)

 

Doug   

 

    



Designing a muffler for a Mazda rotary engine requires taking into account several factors, including:

  1. Engine specifications: The muffler must be compatible with the size and output of the engine.
  1. Noise reduction: The muffler should reduce engine noise to an acceptable level, while also allowing the engine to function efficiently.
  1. Performance: The muffler should not restrict exhaust flow and impact engine performance.
  1. Durability: The muffler must be durable and withstand the high temperatures and vibration generated by the rotary engine.

A muffler design for a Mazda rotary engine could include a straight-through perforated core, surrounded by sound-deadening materials such as fiberglass or ceramic wool. The muffler should be mounted using flexible connections to reduce vibration and ensure a secure fit. Additionally, heat shields could be used to protect the muffler from high temperatures.

These are general guidelines and the exact design may vary based on specific engine and performance requirements. Consulting with a specialist in exhaust systems is recommended to ensure a muffler that is optimized for your specific engine and application.


You're welcome. 
;-) 

 

 



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