X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-ma05.mx.aol.com ([64.12.100.31] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTP id 5995975 for flyrotary@lancaironline.net; Fri, 04 Jan 2013 17:40:26 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.100.31; envelope-from=Lehanover@aol.com Received: from mtaomg-ma06.r1000.mx.aol.com (mtaomg-ma06.r1000.mx.aol.com [172.29.41.13]) by imr-ma05.mx.aol.com (Outbound Mail Relay) with ESMTP id 147331C00007F for ; Fri, 4 Jan 2013 17:39:51 -0500 (EST) Received: from core-mod005c.r1000.mail.aol.com (core-mod005.r1000.mail.aol.com [172.29.196.17]) by mtaomg-ma06.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id E0544E00008A for ; Fri, 4 Jan 2013 17:39:50 -0500 (EST) From: Lehanover@aol.com Full-name: Lehanover Message-ID: Date: Fri, 4 Jan 2013 17:39:48 -0500 (EST) Subject: Re: [FlyRotary] Re: turbo manifold To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_c66a.39abb96e.3e18b434_boundary" X-Mailer: AOL 9.7 sub 55 X-Originating-IP: [173.88.28.139] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1357339191; bh=0yum7wA4LMgklflJHVz/G6/o8ltMF3daPZy5k8GxRRk=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=FhRce7Ob2EOhpKIRYFEwA/dvRDzPZA11pUYYOnRwQvRr46bkUCVVqPdGe/78vwxWY GvOa/LFMMoGCq7R3Or3ogg3gtUoS0TMRd8vYlBkuDKcZeQO04WUBc+Y+iHwygkLFz2 iR2gqfe1vRoX1X/Rotj4A81C4bDL650nWxV6ECwk= X-AOL-SCOLL-SCORE: 0:2:372267520:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d290d50e75a361075 --part1_c66a.39abb96e.3e18b434_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit The same RPM and same blades only means the same HP was applied in both situations. One engine could have 1,000 HP and the other only 150 HP and still produce the same result. It does not mean that all of the available HP was being applied in either case. Typically a more gradual application of throttle will allow improved airflow through the prop disc and un-stalled blades will improve airflow rates (Velocity) and lower the effective angle of attack of the blades, so that additional power may be applied (absorbed). In some cases all the way up to full throttle. In other cases, only allowing the aircraft to accelerate to some speed will lower effective angle of attack enough for the prop to absorb full throttle energy. The (side exhaust port) Renesis, with zero port overlap is less sensitive to exhaust back pressure than earlier (peripheral exhaust port) rotaries. So, it is a better candidate for turbo charging. Lynn E. Hanover In a message dated 1/3/2013 4:44:23 P.M. Eastern Standard Time, argoldman@aol.com writes: Interesting results. If the blades stalled (overpowered) at such a low RPM would it be correct to assume that at that RPM the engine was producing more power than the non Renesis engines at the same RPM with the same prop??? I am so confused... interested also in perhaps turboing the renesis in the future?? Please help --part1_c66a.39abb96e.3e18b434_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
The same RPM and same blades only means the same HP was applied in bot= h=20 situations. One engine could have 1,000 HP and the other only 150 HP and st= ill=20 produce the same result.
 
It does not mean that all of the available HP was being applied in eit= her=20 case. Typically a more gradual application of throttle will allow improved= =20 airflow through the prop disc and un-stalled blades will improve airflow ra= tes=20 (Velocity) and lower the effective angle of attack of the blades, so that= =20 additional power may be applied (absorbed). In some cases all the way up to= full=20 throttle. In other cases, only allowing the aircraft to accelerate to=20 some speed will lower effective angle of attack enough for the pr= op to=20 absorb full throttle energy.  
 
The (side exhaust port) Renesis, with zero port overlap is less sensit= ive=20 to exhaust back pressure than earlier (peripheral exhaust port) rotaries. S= o, it=20 is a better candidate for turbo charging.
 
Lynn E. Hanover
 
 
 
In a message dated 1/3/2013 4:44:23 P.M. Eastern Standard Time,=20 argoldman@aol.com writes:
= Interesting results. If the blades stalled (overp= owered)=20 at such a low RPM would it be correct to as= sume that at that RPM the engine was producing more= power=20 than the non Renesis engines at the same RPM with the same=20 prop???

I am so confused... interested also in perhaps turboing the renesis in the future??

Please=20 help

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