X-Virus-Scanned: clean according to Sophos on Logan.com From: "James R. Osborn" Received: from mail-pf0-f178.google.com ([209.85.192.178] verified) by logan.com (CommuniGate Pro SMTP 6.1.10) with ESMTPS id 8668131 for flyrotary@lancaironline.net; Thu, 19 May 2016 14:39:37 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.192.178; envelope-from=rxcited@gmail.com Received: by mail-pf0-f178.google.com with SMTP id b66so11944379pfb.2 for ; Thu, 19 May 2016 11:39:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:message-id:mime-version:subject:date:references:to:in-reply-to; bh=dwqtfxG5IGixflvZfbKs7rBvMZZTjP4Ce43oWl8TafQ=; b=epwfY4Bj5nm0rB2xII+lAhlZOk2OCsemfWE/aNQF4DJSbZlrBupEceLM4caxceqdsW 5A6+w5de0Q9GbJ6kAp2plCM7/nEmvfzwCcG8a56Z30oE/gANkVz84ACYTf9ipIvgEgkk 6gxz478EWHKpfvWLAwwF9CLD5H5dfzhRkE4R9cPmnDpqNu6odd2rXrs+StfzvGOdg9Zb nKXy+8ItAACzWTrU95a+/5tswKbCxJq0+h9QZJSDxxAEGAYC7GspFvhHsUS6AN39CCD3 wkcB745UWuQCfYkPla5m7MvnYwwtPB4LfQPJJLVWzax5i7DWKIGHWGbkIcCCp2sZXmJq uIQw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:message-id:mime-version:subject:date :references:to:in-reply-to; bh=dwqtfxG5IGixflvZfbKs7rBvMZZTjP4Ce43oWl8TafQ=; b=b9sXAHxo3zVIBwX8lvtaG6JrLuOu/EKbIlYHqobRX+bdInvVr0nJGgIK2toT4LUJ5N guAORQDEvXE3UdyH7p1M1T3Jjegd5dI+udT1dCzgGOsXRADNikRjpXcKGEdjLi5vSJRq A1QVgpTXY2Z3fbhuonajCmx5WGYKWsZ0wnHgdJwS0fVPMAZLSwziDaDAjE8RcqKHOjrr 2c7+SHkHW1QRPMhb9Z8X4g2ZLVyKlaFz9RgNn1dX2P9lDoNGCJ9ceXYxesEoNOPJ0oOo PDqGeIJbtis9XQ8myFN6Tm7xCG/JXJD1/OCoKJu7hkVGgydSW6iVZ2po8O4gYP6QoKH2 wqzA== X-Gm-Message-State: AOPr4FXtRegHytY42sNawSMqXReSnGM/EfgsYoTAFnYXAmATP5ryj4r4xhogzp/EiNGNzw== X-Received: by 10.98.14.93 with SMTP id w90mr21921595pfi.69.1463683157985; Thu, 19 May 2016 11:39:17 -0700 (PDT) Return-Path: Received: from ?IPv6:2620:83:8001:24::1:16c8? ([2620:83:8001:24::1:16c8]) by smtp.gmail.com with ESMTPSA id xn3sm21546074pab.32.2016.05.19.11.39.17 for (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 19 May 2016 11:39:17 -0700 (PDT) Content-Type: multipart/alternative; boundary="Apple-Mail=_DB72DC40-FEE4-43BB-8A54-504B3780D1D9" Message-Id: <843E1B6B-4FFB-4BE3-9A06-9DD024ED5AE4@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: [FlyRotary] Plug hole losses Date: Thu, 19 May 2016 11:39:18 -0700 References: To: Rotary motors in aircraft In-Reply-To: X-Mailer: Apple Mail (2.3124) --Apple-Mail=_DB72DC40-FEE4-43BB-8A54-504B3780D1D9 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 That video has been circulating for a few years. It is pure BS in my = opinion. I agree Lynn, no clue. =E2=80=94 James > On May 18, 2016, at 12:45 PM, Lehanover = wrote: >=20 > From: > Doug Lomheim flyrotary@lancaironline.net = > =20 > =20 > =20 > =20 > =20 > Subject: Slits replace spark plug holes? > Date: Thu, 28 Apr 2016 20:36:45 +0200 > To: Rotary Motors in Aircraft > >=20 > > The host=E2=80=99s voice on this video makes it hard to take it = seriously; but I wonder if the racing guys have experimented with either = of the two ideas presented=E2=80=A6? >=20 > https://www.youtube.com/watch?v=3Dm3pCLjHZmhM = >=20 > Doug Lomheim > RV-9A 13b; FWF > =20 > While the apex seal does cross the trailing plug hole and the leading = plug hole during compression, the time period of exposure is nil even = during starting. Far less when running. So, looking for a power increase = with modifications here is not productive. > =20 > Fuel consumption per horse power hour is not far off of a piston = engine at the same test HP. So, not much to be gained with more = compression. Every fire slot shape has been tried by Mazda and many = racers already and there is little to be had over the stock shape. The = engines tune like 2 cycle dirt bikes. Responding to exhaust lengths/back = pressure and inlet lengths. Usually can turn over 9,000 without damage = and never throws a rod through the case. The "inventer" does not have a = clue. > Lynn E. Hanover=20 --Apple-Mail=_DB72DC40-FEE4-43BB-8A54-504B3780D1D9 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 That video has been circulating for a few years.  It is = pure BS in my opinion.  I agree Lynn, no clue.

=E2=80=94= James

On May 18, 2016, at 12:45 PM, Lehanover <flyrotary@lancaironline.net> wrote:

From:=20
Doug Lomheim flyrotary@lancaironline.net
 
 
 
 
 
Subject: Slits replace spark plug = holes?
Date: Thu, 28 Apr 2016 20:36:45 = +0200
To: Rotary Motors in Aircraft=20 <flyrotary@lancaironline.net>
3D"Message

3D"Undecoded
The host=E2=80=99s = voice on this video makes it hard to take it=20 seriously; but I wonder if the racing guys have experimented = with=20 either of the two ideas presented=E2=80=A6?

https://www.youtube.com/watch?v=3Dm3pCLjHZmhM=20

Doug = Lomheim
RV-9A 13b; = FWF
 
While = the apex seal does cross the trailing=20 plug hole and the leading plug hole during compression, the = time=20 period of exposure is nil even during starting. Far less when = running.=20 So, looking for a power increase with modifications here is = not=20 productive.
 
Fuel = consumption per horse power hour is not=20 far off of a piston engine at the same test HP. So, not much to be = gained=20 with more compression. Every fire slot shape has been tried by = Mazda and=20 many racers already and there is little to be had over the stock = shape.=20 The engines tune like 2 cycle dirt bikes. Responding to exhaust=20 lengths/back pressure and inlet lengths. Usually can turn over = 9,000=20 without damage and never throws a rod through the case. The = "inventer"=20 does not have a clue.
Lynn E.=20= = Hanover 

= --Apple-Mail=_DB72DC40-FEE4-43BB-8A54-504B3780D1D9--