X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail10.syd.optusnet.com.au ([211.29.132.191] verified) by logan.com (CommuniGate Pro SMTP 5.2.8) with ESMTPS id 3153533 for flyrotary@lancaironline.net; Fri, 19 Sep 2008 03:30:43 -0400 Received-SPF: pass receiver=logan.com; client-ip=211.29.132.191; envelope-from=lendich@optusnet.com.au Received: from george (d220-236-182-156.dsl.nsw.optusnet.com.au [220.236.182.156]) by mail10.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id m8J7TwcU016633 for ; Fri, 19 Sep 2008 17:30:00 +1000 Message-ID: <001b01c91a29$86e55e90$6400a8c0@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Single Rotor Performance Date: Fri, 19 Sep 2008 17:29:59 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0018_01C91A7D.578D9320" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3350 X-Antivirus: avast! (VPS 080918-0, 18/09/2008), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0018_01C91A7D.578D9320 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Richard, Love to hear that info on th single - good work mate, as usual. 80hp at 6,000 rpm is very respectable for a 12A. The 150hp sounds good = but will it get there, who knows! I've roughed out my single crank and it wasn't all that difficult, now = I'm setting up for centres both ends and a drive dog for final cut. I'm slow but rough! George ( down under) The single rotor engine is finally running again. Dynamically balanced = and a new ignition system helped a lot.=20 The prop is set to give around 6000RPM at WOT. The repeated result = are: RPM 6000/min Fuel flow 6.8 gph MAP 27" Mixture 14.6 EGT 1700 F Oil and water temperatures were stable at 160/140 respectivly.=20 The fuel flow would indicate 80hp at a BFSC of .5 . If this is = anywhere close to what the engine produces, the predicted 110hp at = 7500RPM are feasible. Keep in mind that this is a 12A based engine. For = a 13B based version it will be close to 150hp.=20 I now will have to put all my efforts into putting the flyable engine = together. Richard Sohn N2071U -------------------------------------------------------------------------= ----- -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0018_01C91A7D.578D9320 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Richard,
Love to hear that info on th = single - good=20 work mate, as usual.
80hp at 6,000 rpm is very respectable = for a 12A.=20 The 150hp sounds good but will it get there, who knows!
I've roughed out my single crank and it = wasn't all=20 that difficult, now I'm setting up for centres both ends and a drive dog = for=20 final cut.
I'm slow but rough!
George ( down under)
The single rotor engine is finally = running again.=20 Dynamically balanced and a new ignition system helped a lot. =
 
The prop is set to give around = 6000RPM at WOT.=20 The repeated result are:
 
RPM           = 6000/min
 
Fuel = flow      6.8=20 gph
 
MAP          &= nbsp;=20 27"
 
Mixture        =20 14.6
 
EGT          &= nbsp;  =20 1700 F
 
Oil and water temperatures were = stable at 160/140=20 respectivly.
 
The fuel flow would indicate 80hp at = a BFSC of .5=20 . If this is anywhere close to what the engine produces, the predicted = 110hp=20 at 7500RPM are feasible. Keep in mind that this is a 12A based engine. = For a=20 13B based version it will be close to 150hp.
 
I now will have to put all my efforts = into=20 putting the flyable engine together.
 
Richard = Sohn
N2071U

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