X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from poplet2.per.eftel.com ([203.24.100.45] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with ESMTP id 4364603 for flyrotary@lancaironline.net; Mon, 21 Jun 2010 04:39:52 -0400 Received-SPF: none receiver=logan.com; client-ip=203.24.100.45; envelope-from=lendich@aanet.com.au Received: from sv1-1.aanet.com.au (mail.aanet.com.au [203.24.100.34]) by poplet2.per.eftel.com (Postfix) with ESMTP id A2A6C173629 for ; Mon, 21 Jun 2010 16:39:10 +0800 (WST) Received: from ownerf1fc517b8 (203.171.92.134.static.rev.aanet.com.au [203.171.92.134]) by sv1-1.aanet.com.au (Postfix) with SMTP id 0DBC3BEC01A for ; Mon, 21 Jun 2010 16:39:09 +0800 (WST) Message-ID: <439921A16AE841DC979E57815018ABB3@ownerf1fc517b8> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Peripheral Port 13B Rotary Engine Date: Mon, 21 Jun 2010 18:39:17 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001F_01CB1171.0DCE1F60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5931 X-Antivirus: avast! (VPS 100620-1, 06/20/2010), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_001F_01CB1171.0DCE1F60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Richard,=20 We seem to be singing from the same sheet of music in regard to = projected HP at RPM, at optimum performance. So what weight have you got = on that flywheel, it seems to be a cut down manual cast flywheel from a = past photo. I figured I might need a heavier flywheel than the flexplate = and was considering having one of those aftermarket steel ones made and = have mounting holes included to suite what ever damper I incorporate. BTW this is single rotor specific if anyone was confused. George (down under) Hi Bob, I am not flying the PP engine yet, however I have a lot of running = time on the test stand. My engine is a single rotor with a 12A rotor and = rotor housing.=20 The latest tests showed a calculated power of 92hp at 6000RPM, which, = extrapolated to a 13B would give you close to 300hp @ 7500RPM.=20 Don't expect it to idle smooth much below 2000RPM. I am using a = substantial flywheel for preventing gear rattling at that RPM.=20 This engine has been running now, as it is, for about 6years on the = test stand without any engine related problems. It is ready to go in the = airplane. Compared to the 100hp SOOB I have been running in the airplane for 10 = years, using the same prop, it is producing at least some more power. If I had the size airplane for a 13B it would definitely be PP. FWIW. Richard Sohn N2071U ----- Original Message -----=20 From: Rogers, Bob J.=20 To: Rotary motors in aircraft=20 Sent: Friday, June 18, 2010 11:56 AM Subject: [FlyRotary] Peripheral Port 13B Rotary Engine =20 Is anyone flying with a Mazda 13B peripheral port engine? If so, = how is it working? Can you describe the advantages and disadvantages? =20 Thanks, =20 Bob Rogers ------=_NextPart_000_001F_01CB1171.0DCE1F60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 Richard,
We seem to be singing from the same = sheet of music=20 in regard to projected HP at RPM, at optimum performance. So what weight = have=20 you got on that flywheel, it seems to be a cut down manual cast flywheel = from a=20 past photo. I figured I might need a heavier flywheel than the flexplate = and was=20 considering having one of those aftermarket steel ones made and have = mounting=20 holes included to suite what ever damper I incorporate.
BTW this is single rotor specific if = anyone was=20 confused.
George (down under)
Hi Bob,
 
I am not flying the PP engine yet, = however I have=20 a lot of running time on the test stand. My engine is a single rotor = with a=20 12A rotor and rotor housing.
The latest tests showed a calculated = power of=20 92hp at 6000RPM, which, extrapolated to a 13B would give you close to = 300hp @=20 7500RPM.
Don't expect it to idle smooth much = below=20 2000RPM. I am using a substantial flywheel for preventing gear = rattling at=20 that RPM.
 
This engine has been running now, as = it is, for=20 about 6years on the test stand without any engine related problems. It = is=20 ready to go in the airplane.
 
Compared to the 100hp SOOB I have = been running in=20 the airplane for 10 years, using the same prop, it is producing at = least some=20 more power.
 
If I had the size airplane for a 13B = it would=20 definitely be PP.
 
FWIW.
 
Richard Sohn
N2071U
----- Original Message -----
From:=20 Rogers, = Bob J.=20
To: Rotary motors in = aircraft=20
Sent: Friday, June 18, 2010 = 11:56=20 AM
Subject: [FlyRotary] = Peripheral Port=20 13B Rotary Engine

 

Is anyone = flying=20 with a Mazda 13B peripheral port engine?  If so, how is it = working?  Can you describe the = advantages and=20 disadvantages?

 

Thanks,

 

Bob=20 = Rogers

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