Return-Path: <13brv3@bellsouth.net> Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 357448 for flyrotary@lancaironline.net; Mon, 09 Aug 2004 00:15:42 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.71; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf23aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040809041512.TDXS1787.imf23aec.mail.bellsouth.net@rd> for ; Mon, 9 Aug 2004 00:15:12 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: single rotor progress? Date: Sun, 8 Aug 2004 23:14:58 -0500 Message-ID: <00db01c47dc7$6f066330$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00DC_01C47D9D.86305B30" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 In-Reply-To: Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_00DC_01C47D9D.86305B30 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit In Sweden there are some guys that just tested a "6B" (half 13B)in a dyno. This is what they got: 70,5 hp at 5700rpm 95 Nm at 4200 rpm 65 kg ex starter. They will produce and sell the special parts needed to build one. Not shore when the parts are ready to ship. Regards Martin That's interesting. I'm assuming that was standard intake porting to have peak HP at such a low rpm. A bit more rpm, and power would put it in the one HP per two pound ballpark with real aviation engines. Unfortunately, the single rotor does suffer a power to weight disadvantage compared to a two rotor. Rusty (still wishing for affordable aluminum side housings) ------=_NextPart_000_00DC_01C47D9D.86305B30 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
In Sweden there are some = guys that just=20 tested a "6B" (half 13B)in a dyno. This is what they got:
 
70,5 hp at = 5700rpm
95 Nm at 4200 = rpm
 
65 kg ex = starter.
 
They will produce and sell = the special=20 parts needed to build one. Not shore when the parts are ready to=20 ship.
 
Regards
Martin 
 
 
That's interesting.  I'm = assuming that was=20 standard intake porting to have peak HP at such a low=20 rpm.   A bit more rpm, and power would put it in the one = HP per=20 two pound ballpark with real aviation engines.  Unfortunately, the = single=20 rotor does suffer a power to weight disadvantage compared to a two=20 rotor.
 
Rusty (still wishing for = affordable aluminum=20 side = housings)    
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