|
|
Bill, I did get the jpeg and I really like the concept. I never saw the original VAM. Ed told me about how it was chopped up to fit Tracy's test engine. I asked what was inside it and he said "nothing." Originally I can recall some discussion on the other list about putting a valve on the inlet to prevent exhaust gas from going the wrong way when the airplane was not moving. That probably came from a misunderstanding of your concept. I really like the version you posted today. Jerry
On Thursday, June 30, 2005, at 02:18 PM, wrjjrs@aol.com wrote:
Jerry, That is not what I understood, but I'll take your word for it. I also would mention that I Muffed the name, I intended to reply to Rusty ,(since you, Jerry are well aware of the going's on with the VAM.) If Ed DIDN'T put the center tube thru to the tail pipe the VAM simply WOULDN'T WORK! The center tube must be placed in the center, (in fact partially inside) of the tail pipe. Did you get the jpeg?
Bill Jepson
-----Original Message-----
From: Jerry Hey <jerryhey@earthlink.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thu, 30 Jun 2005 14:06:03 -0500
Subject: [FlyRotary] Re: P Ports working on dyno
.AOLPlainTextBody { margin: 0px; font-family: Tahoma, Verdana, Arial, Sans-Serif; font-size: 12px; color: #000; background-color: #fff; } .AOLPlainTextBody pre { font-size: 9pt; } .AOLInlineAttachment { margin: 10px; } .AOLAttachmentHeader { border-bottom: 2px solid #E9EAEB; background: #F9F9F9; } .AOLAttachmentHeader .Title { font: 11px Tahoma; font-weight: bold; color: #666666; background: #E9EAEB; padding: 3px 0px 1px 10px; } .AOLAttachmentHeader .FieldLabel { font: 11px Tahoma; font-weight: bold; color: #666666; padding: 1px 10px 1px 9px; } .AOLAttachmentHeader .FieldValue { font: 11px Tahoma; color: #333333; }
Correction, it originally had the tail pipe but no tube going through the center. Jerry
On Thursday, June 30, 2005, at 01:46 PM, Jerry Hey wrote:
> Bill, FWIW, the VAM muffler built by Ed did not have the center tube. > It was just a hollow cylinder with a two inch hole in either end. > We could not figure out how it was supposed to work but discussions > about it soon led to the question "what if we run a tube through it." > At that point we thought we had really come up with something that > might work. ...The rest of the story you already know.
>
>
> On Thursday, June 30, 2005, at 01:32 PM, wrjjrs@aol.com wrote:
>
>> Jerry, Yes it was a discussion of a occurance on the "other list". >> Prior to my joining Flyrotary I did a muffler layout to reduce the >> temp of the exit gasses. It was a tangential design with a center >> tube. Jerry's system is an outgrowth of the original layout. (Totally >> with my agreement) Ed Kleppis did a muffler from the original >> picture, and took it to Tracy's gathering to try it out. It didn't >> fit on Tracys test stand with the tail pipe so they ran it without >> it. PL then said it's LOUD. Of course it would be without a tail >> pipe. It might have been with a tail pipe but we won't know. I still >> think the idea has merrit but several areas are kinda critical. I >> will attach an old jpeg. If anybody is interested I go over the >> specifics. BTW the layout is for a 20B of course that's why the 3 >> holes! The hole in front needs a inlet or blast tube for the cool air >> feed.
>> Bill Jepson
>>
>> -----Original Message-----
>> From: Russell Duffy <13brv3@bellsouth.net>
>> To: Rotary motors in aircraft <flyrotary@lancaironline.net>
>> Sent: Thu, 30 Jun 2005 12:57:07 -0500
>> Subject: [FlyRotary] Re: P Ports working on dyno
>>
>> .AOLPlainTextBody { margin: 0px; font-family: Tahoma, Verdana, Arial, >> Sans-Serif; font-size: 12px; color: #000; background-color: #fff; } >> .AOLPlainTextBody pre { font-size: 9pt; } .AOLInlineAttachment { >> margin: 10px; } .AOLAttachmentHeader { border-bottom: 2px solid >> #E9EAEB; background: #F9F9F9; } .AOLAttachmentHeader .Title { font: >> 11px Tahoma; font-weight: bold; color: #666666; background: #E9EAEB; >> padding: 3px 0px 1px 10px; } .AOLAttachmentHeader .FieldLabel { font: >> 11px Tahoma; font-weight: bold; color: #666666; padding: 1px 10px 1px >> 9px; } .AOLAttachmentHeader .FieldValue { font: 11px Tahoma; color: >> #333333; }
>> Bill, the muffler is "optically dense." The "tailpipe" cannot be seen >> by the exhaust ports. I wish Paul had tested a little more and given >> me more information. A number of people want this muffler but I have >> declined to build more until it could be tested properly. Even Paul >> is telling Bob White to change nothing until he hears it for himself. >> I need to finish my engine and put it on my own dyno. Jerry
>>
>> Hi Jerry,
>>
>> I've been trying to follow this, but I think you guys must be >> referring to a post on the PL list. Did he just bolt it on and >> listen to it, then take it off without actually doing a dyno pull on >> it? That would be a bummer.
>>
>> If you're going to discuss it here, could you post the whole message >> you're commenting on, so the rest of us can follow along? Of course, >> you could also hold this discussion on the other list, or at least >> "try" to :-)
>>
>> Cheers,
>> Rusty
>>
>>
>>
>> <tan_muff_oa_sect.jpg><tan_muff_outside.jpg> Homepage: >> http://www.flyrotary.com/
>>>> Archive: http://lancaironline.net/lists/flyrotary/List.html
|
|