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 4365673 for flyrotary@lancaironline.net; Mon, 21 Jun 2010 17:59:40 -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 5A2A11735AC for ; Tue, 22 Jun 2010 05:59:04 +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 8B7CDBEC018 for ; Tue, 22 Jun 2010 05:59:03 +0800 (WST) Message-ID: From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Peripheral Port 13B Rotary Engine Date: Tue, 22 Jun 2010 07:59:11 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0043_01CB11E0.CCC65E90" 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 100621-1, 06/21/2010), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0043_01CB11E0.CCC65E90 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Richard, Ah The magic 44mm. I know you are running a 12A but at what rpm are = you running out of breathing, provided you have had the single that = high. I would have to run the numbers but thought you would get away = with a 38/40mm carb and push up the velocity.=20 George (down under), this flywheel is my design, it is steel with the cut outs for = balancing. The steel section is 14mm thick, and the ring gear is 250mm = diameter, coming off a Metro Geo engine.=20 I calculated my hp from fuel flow using a BFSC of .5 . May be a little = optimistic. Mixture was slightly rich at the tests.=20 I am running now a Mikuni VM44 carb. Richard Sohn N2071U ----- Original Message -----=20 From: George Lendich=20 To: Rotary motors in aircraft=20 Sent: Monday, June 21, 2010 3:39 AM Subject: [FlyRotary] Re: Peripheral Port 13B Rotary Engine 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) 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_0043_01CB11E0.CCC65E90 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Richard,

Ah The magic 44mm. I know you are = running a 12A=20 but at what rpm are you running out of breathing, provided you have = had=20 the single that high. I would have to run the numbers but thought = you=20 would get away with a 38/40mm carb and push up the = velocity.

George (down under),

this flywheel is my design, it is = steel with the=20 cut outs for balancing. The steel section is 14mm thick, and the ring = gear is=20 250mm diameter, coming off a Metro Geo engine.

I calculated my hp from fuel flow = using a BFSC of=20 .5 . May be a little optimistic. Mixture was slightly rich at the = tests.=20

I am running now a Mikuni VM44 = carb.

Richard Sohn
N2071U

----- Original Message -----
From:=20 George=20 Lendich
To: Rotary motors in = aircraft=20

Sent: Monday, June 21, 2010 = 3:39=20 AM

Subject: [FlyRotary] Re: = Peripheral=20 Port 13B Rotary Engine

Richard,

We seem to be singing from the same = sheet of=20 music in regard to projected HP at RPM, at optimum performance. So = what=20 weight have you got on that flywheel, it seems to be a cut down = manual cast=20 flywheel from a past photo. I figured I might need a heavier = flywheel than=20 the flexplate and was considering having one of those aftermarket = steel ones=20 made and have mounting holes included to suite what ever damper I=20 incorporate.

BTW this is single rotor specific = if anyone was=20 confused.

George (down under)

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

Thanks,

Bob=20 = Rogers
------=_NextPart_000_0043_01CB11E0.CCC65E90--