X-Virus-Scanned: clean according to Sophos on Logan.com From: "Terry" Received: from nm11-vm10.access.bullet.mail.bf1.yahoo.com ([216.109.114.233] verified) by logan.com (CommuniGate Pro SMTP 6.1.10) with ESMTPS id 8731741 for flyrotary@lancaironline.net; Tue, 14 Jun 2016 22:45:53 -0400 Received-SPF: none receiver=logan.com; client-ip=216.109.114.233; envelope-from=terrywadams@sbcglobal.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sbcglobal.net; s=s2048; t=1465958736; bh=k0oomf77JMfZjc7GoaB4IfO+sR4eJcpHnAnOF4rC76E=; h=Subject:To:References:From:Date:In-Reply-To:From:Subject; b=b5FUDv8Fim1MGIcWh3huTYr1FY3LPrWbffS36pneGrBuv8aQ7ac2qLXsaefGdRX8H2kzlhXz6ednmzTKVp3pzzQEeUPELocVD3shlPTS3E1ocfvC0EXvyiCx96dI7x7pxiwCuU1HftRhZx+UnP75TFBju0qMjvkskiMZEL/aYb9q44wdRoxWZpP0Xwx45tPk2kgGo96oUwdzPSVeiOMkkTNqfujTMl28VZfHfpNWl0SeWRh/LaIzIAE5uXA/f896DyT3Y88W86MUAp1h1Bz5aogK9vgq+4rIUGOTQzAPJzRsLbGTWRntnfi+g6t+/tFbQFwNqe+WfiYYtmyGZ5k5MA== Received: from [66.196.81.157] by nm11.access.bullet.mail.bf1.yahoo.com with NNFMP; 15 Jun 2016 02:45:36 -0000 Received: from [98.138.226.240] by tm3.access.bullet.mail.bf1.yahoo.com with NNFMP; 15 Jun 2016 02:45:35 -0000 Received: from [127.0.0.1] by smtp111.sbc.mail.ne1.yahoo.com with NNFMP; 15 Jun 2016 02:45:35 -0000 X-Yahoo-Newman-Id: 739312.92548.bm@smtp111.sbc.mail.ne1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: eLQh52MVM1nmKYYTOTUb.iCZRBhWjQ_jGCQWnNCtvPhrjjb ppTqdgfQUoDsBzl7wUu6B6j.DV2En8CToKE0nEWPdyaLM2hnOsQbXnLSOD0v ygZmADYSkb7o45e0ihGFx3h8zaWY9Dh6leAufabcpDrQCBvc_rnXAgTlIyjZ RyJf9DRypnhgJ2U_gziBBJQaKTnO2XvJbBzWsKHTHqcKMlbDa8HE4G204AD2 tcSQXWyXJbazJGJR9TBASiu0jdo7AebcQixaK7VkzpWtnqDvW_7ngB6RD7jL VMUeaivd_e.oVw3EnsNDejM_tD8QskUYnv0WpttDvnTLGiNSuLVdzb66p5ug 2GFX2cVDzw.KqSZO_8RCoz5OPo.cYboyK.SWvcysEd9zjdGlxuas_ufAw.tn nUzfTe.zDJCJICLNb04T8I24DKAvyuXtGWS2RD2ip00uSCSbd0n3TFx78D6t 21_AMl2GXG7T7inv.wdufCdW2EeL9oF7Eb1FHpi69knVfG06g3MMbsxSc9mo Vmo7_TBhlXbJCwGSkxNG_UGDJB6NUoepcDUck1AaK7RoiLPc6ewmop1Q- X-Yahoo-SMTP: _xj_QFOswBAGNFsIK1V4P7NsbfZPkM3.8ogi7X.YgvnM.mbzD54- Subject: Re: [FlyRotary] Re: [Non-DoD Source] [FlyRotary] Re: Mistral To: Rotary motors in aircraft References: Message-ID: <403b5837-356b-6b65-2390-38ea168da85e@sbcglobal.net> Date: Tue, 14 Jun 2016 19:45:35 -0700 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------58096C18BCD5EAC88A64FE58" This is a multi-part message in MIME format. --------------58096C18BCD5EAC88A64FE58 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Okay, I'll skip the aluminum, but.... Fiberglass....Carbon fiber......could be an alternative over plywood. As a composite I can form a stronger cigar box at a fraction of the weight. Terry Adams N51079 KSCK On 6/14/2016 2:15 PM, Charlie England wrote: > Tracy's is on the intake/exhaust side of the engine; the intake tubes > are a straight shot from bellmouth to engine block. Everyone seems to > go for the PL inspired 19" length tubes (or even longer, to find a > spot on the plugs side of the engine for the plenum. I wonder if > that's part of the reason (along with the drag of 'snake-y' tubes) > that some aren't getting the HP they hoped for. > > Note: If you build a 'cigar box' style plenum (air box) with flat > sides, don't make my mistake. Tracy's box is made of plywood for a > reason; I got creative & made mine using aluminum and Tracy pointed > out that the pressure pulses will quickly shred it. Rebuilding my > plenum is on my 'to do' list. I've got some 6" aluminum tubing that I > may use, but the simplest thing is to just build it with plywood. > > On 6/14/2016 1:38 PM, William Jepson wrote: >> Something to remember an airbox like that must be on the "cold side" >> of the engine. Don't put it over the exhaust. >> Bill >> >> On Tue, Jun 14, 2016 at 10:13 AM, Luciano, Luis I CIV PEOSUB, PMS404P >> wrote: >> >> Hahaha... I always heard of Tracy's simple intake manifold but >> never had seen the actual setup (except for zoomed out shots in >> Contact mag). Now I feel better as I move forward with my build >> :) Thanks for sharing Charlie!!! >> >> Luis >> >> -----Original Message----- >> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] >> Sent: Tuesday, June 14, 2016 12:27 PM >> To: Rotary motors in aircraft >> Subject: [Non-DoD Source] [FlyRotary] Re: Mistral >> >> On 6/14/2016 9:52 AM, Tom Mann wrote: >> > Any Idea as to where one might find this information? >> > >> > -----Original Message----- From: Charlie England >> > Sent: Tuesday, June 14, 2016 9:43 AM >> > To: Rotary motors in aircraft >> > Subject: [FlyRotary] Re: Mistral >> > >> > It's not that hard to make an intake that will make great >> power. Look >> > at Tracy's setup. Might not be aesthetically beautiful to some >> eyes, >> > but to me, function is beauty. I don't know of any N/A 2 rotor >> that's >> > as fast as his -4, or as efficient at lower speeds. And really >> simple to make. >> > >> > Charlie >> >> Hope Tracy doesn't mind; here's a shot of the Renesis manifold. I >> believe that the tubes inside the 'box' were later extended to be >> near the opposite wall. IIRC, Tracy said that the tubes are ~11" >> from the face of the block to the end of the bellmouth. >> >> You can see old versions of the RWS website by using the Wayback >> Machine & picking a date. >> >> Charlie >> >> > --------------58096C18BCD5EAC88A64FE58 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit Okay, I'll skip the aluminum, but....
Fiberglass....Carbon fiber......could be an alternative over plywood.  As a composite I can form a stronger cigar box at a fraction of the weight.

Terry Adams
N51079
KSCK

On 6/14/2016 2:15 PM, Charlie England wrote:
Tracy's is on the intake/exhaust side of the engine; the intake tubes are a straight shot from bellmouth to engine block. Everyone seems to go for the PL inspired 19" length tubes (or even longer, to find a spot on the plugs side of the engine for the plenum. I wonder if that's part of the reason (along with the drag of 'snake-y' tubes) that some aren't getting the HP they hoped for.

Note: If you build a 'cigar box' style plenum (air box) with flat sides, don't make my mistake. Tracy's box is made of plywood for a reason; I got creative & made mine using aluminum and Tracy pointed out that the pressure pulses will quickly shred it. Rebuilding my plenum is on my 'to do' list. I've got some 6" aluminum tubing that I may use, but the simplest thing is to just build it with plywood.

On 6/14/2016 1:38 PM, William Jepson wrote:
Something to remember an airbox like that must be on the "cold side" of the engine. Don't put it over the exhaust. 
Bill

On Tue, Jun 14, 2016 at 10:13 AM, Luciano, Luis I CIV PEOSUB, PMS404P <flyrotary@lancaironline.net> wrote:
Hahaha... I always heard of Tracy's simple intake manifold but never had seen the actual setup (except for zoomed out shots in Contact mag).  Now I feel better as I move forward with my build :)  Thanks for sharing Charlie!!!

Luis

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Tuesday, June 14, 2016 12:27 PM
To: Rotary motors in aircraft
Subject: [Non-DoD Source] [FlyRotary] Re: Mistral

On 6/14/2016 9:52 AM, Tom Mann wrote:
> Any Idea as to where one might find this information?
>
> -----Original Message----- From: Charlie England
> Sent: Tuesday, June 14, 2016 9:43 AM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: Mistral
>
> It's not that hard to make an intake that will make great power. Look
> at Tracy's setup. Might not be aesthetically beautiful to some eyes,
> but to me, function is beauty. I don't know of any N/A 2 rotor that's
> as fast as his -4, or as efficient at lower speeds. And really simple to make.
>
> Charlie

Hope Tracy doesn't mind; here's a shot of the Renesis manifold. I believe that the tubes inside the 'box' were later extended to be near the opposite wall. IIRC, Tracy said that the tubes are ~11" from the face of the block to the end of the bellmouth.

You can see old versions of the RWS website by using the Wayback Machine & picking a date.

Charlie



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