X-Virus-Scanned: clean according to Sophos on Logan.com From: "Charlie England" Received: from mail-pa0-f52.google.com ([209.85.220.52] verified) by logan.com (CommuniGate Pro SMTP 6.1.10) with ESMTPS id 8731761 for flyrotary@lancaironline.net; Tue, 14 Jun 2016 23:03:01 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.52; envelope-from=ceengland7@gmail.com Received: by mail-pa0-f52.google.com with SMTP id b13so2733634pat.0 for ; Tue, 14 Jun 2016 20:03:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to; bh=ZYZD23wbv3cdVdpMvnMRYpRU9za2AAsujQqrPKph9rE=; b=Q24d9yEQ+OaANbsAJSH+Rtx0Xtzzvs1IC9AphLzJoW49ociTGHKaX1+QZy00o3zXC0 NUZLcCZVQPQSSiCXUqRx5JnLN4tqyb7JtwGoQHbmS86F62c7BtjE0vJ9I5aqKqcbc35C SiGQXUrqAnXv2UUGJy6HHk87QbMd+NuNL2skNye9bVNqssCbbatSrPnCdvOY5XP3zS6m JnL0rYSzjpJOmXGbdPI2Dl/ThqlrfbF7N5IGukPWdRBaH6tAYXoz6E8l7WibKoRD0dVv 2SrvheKnMWX9+xrlIfo9Wl9mftfPRapajVbi05vR3CalZiH1FcPGWv676NlpvebWpANS xW5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to; bh=ZYZD23wbv3cdVdpMvnMRYpRU9za2AAsujQqrPKph9rE=; b=hkSn+ts6TBNBmSAgesYE5I1Q9n3w+gID8nA4a9fjCGF6ePeaqTmnlw/jng+FBxjwo+ 83r5KXBH7kXXo4+5EDLqty9jsQ5Iw7d+NHsih3Crev73lKHvvofq0KWHK9YIa+8LKFyx yWCfRF0RBo2BHmO9Gf6s0YeReXRYhf3ITN8vrkUpoj2zImNplh/Hy8nGlHvlZ0LeU+Bc Gk2+JCFeirxpGbuxdLIpJW8SroOZeZVZVPRwBEPHHEEBA1CZ/jkhuAUUEAdYoNCmo1pX JZMwwvNzLvuKtL2fgc2u1qOtkrsYUupdzvSLS+mimjvxa84sXyR94hp1N2QUjKW82jhj f/Cw== X-Gm-Message-State: ALyK8tJn/BKbWVt+5akUxDteXWJ63ol46tFYRbtKeR4P8zvhx7NL5wUrCi3Jb0Fur4gC0Q== X-Received: by 10.66.90.4 with SMTP id bs4mr1208934pab.80.1465959763590; Tue, 14 Jun 2016 20:02:43 -0700 (PDT) Return-Path: Received: from ?IPv6:2602:306:25fa:e5d9:7ca0:fb2b:9488:7de? ([2602:306:25fa:e5d9:7ca0:fb2b:9488:7de]) by smtp.googlemail.com with ESMTPSA id lq8sm48452223pab.40.2016.06.14.20.02.42 for (version=TLSv1/SSLv3 cipher=OTHER); Tue, 14 Jun 2016 20:02:43 -0700 (PDT) Subject: Re: [FlyRotary] Re: [Non-DoD Source] [FlyRotary] Re: Mistral To: Rotary motors in aircraft References: Message-ID: <1cb8966f-ae27-2530-9bd2-192791bbe814@gmail.com> Date: Tue, 14 Jun 2016 22:05:34 -0500 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="------------CC059C473CBE93D4A00B2E14" This is a multi-part message in MIME format. --------------CC059C473CBE93D4A00B2E14 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Nothing wrong with aluminum; just can't have flat surfaces. On 6/14/2016 9:45 PM, Terry wrote: > 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 >>> >>> >> > --------------CC059C473CBE93D4A00B2E14 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
Nothing wrong with aluminum; just can't have flat surfaces.

On 6/14/2016 9:45 PM, Terry wrote:
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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