Return-Path: Received: from [216.211.128.10] (HELO incoming.adhost.com) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 563965 for flyrotary@lancaironline.net; Sun, 12 Dec 2004 00:13:08 -0500 Received-SPF: none receiver=logan.com; client-ip=216.211.128.10; envelope-from=JoeH@PilgrimTech.com Received: from pilgrim9 (c-24-16-112-209.client.comcast.net [24.16.112.209]) by incoming.adhost.com (Postfix) with ESMTP id EDB7ACF963 for ; Sat, 11 Dec 2004 21:12:53 -0800 (PST) (envelope-from JoeH@PilgrimTech.com) Reply-To: From: "Joe Hull" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Serious single rotor questions Date: Sat, 11 Dec 2004 21:12:57 -0800 Organization: Pilgrim Technologies MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00A1_01C4DFC6.308AFBF0" X-Mailer: Microsoft Office Outlook, Build 11.0.6353 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Thread-Index: AcTftRPzcv//MIc/STS7ygUFPupzwQAVAuMg In-reply-to: Message-Id: <20041212051253.EDB7ACF963@incoming.adhost.com> This is a multi-part message in MIME format. ------=_NextPart_000_00A1_01C4DFC6.308AFBF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit You might check with David Atkins (Atkins Rotary, Puyallup, WA). Last time I was down there he was building up a single rotor. Joe Hull Bellevue (Seattle), Washington Cozy MkIV #991 (working on Engine & Electrical & Finishing) http://www.maddyhome.com/canardpages/pages/JoeHull/index.html _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Russell Duffy Sent: Saturday, December 11, 2004 11:10 AM To: Rotary motors in aircraft Subject: [FlyRotary] Serious single rotor questions Greetings, As I've mentioned, I recently purchased a Kolb with a 912ULS engine. Since I've mentioned the rotary engine possibility on the Kolb list, I've had 3 people ask if I would sell the 912ULS. Now that I find out how much the engine is worth, I'm seriously thinking about selling it, and going ahead with the single rotor engine. Questions: - Where can I get a single rotor eccentric shaft? I'm thinking that the only ones running now were cut down from 13B shafts, which I understand is a mighty tough job. - Folks have done plugs-up engines, but has anyone ever done a plugs-down engine? Do you see any reason why it wouldn't work as well as plugs-up? Having the intake and exhaust on top would be the best arrangement, but it won't be possible to do this unless I can get a planetary drive unit to keep the prop in the center of the engine. - What is available for light weight PSRU's? I know that Richard is using a Hirth gearbox, which is a good idea. There must be some belt drive units available as well. The biggest problem is that most of these units that would fit, are made for a 13B, so they're much heavier than they need to be for a single rotor. I'd like to stay with a high gear ratio, since I'd plan to run the engine at higher rpms. - Lot's more questions if I decide to do this. Thanks, Rusty (could I possibly be this much of a masochist) ------=_NextPart_000_00A1_01C4DFC6.308AFBF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

You might check with David Atkins = (Atkins Rotary, Puyallup, WA). Last time I was down there he was building up a = single rotor.

 

Joe Hull

Bellevue (Seattle), Washington

Cozy MkIV #991 (working on Engine = & Electrical & Finishing)

http://www.maddyhome.com/canardpages/pages/JoeHull/index.html

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Russell Duffy
Sent: Saturday, December = 11, 2004 11:10 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] = Serious single rotor questions

 

Greetings,

 

As I've mentioned, I recently purchased a Kolb with a = 912ULS engine.  Since I've mentioned the rotary engine possibility on the = Kolb list, I've had 3 people ask if I would sell the 912ULS.   Now = that I find out how much the engine is worth, I'm seriously thinking about = selling it, and going ahead with the single rotor engine. 

 

Questions:

 

- Where can I get a single rotor eccentric = shaft?  I'm thinking that the only ones running now were cut down from 13B shafts, = which I understand is a mighty tough job. 

 

- Folks have done plugs-up engines, but has anyone = ever done a plugs-down engine?  Do you see any reason why it wouldn't = work as well as plugs-up?  Having the intake and exhaust on top would = be the best arrangement, but it won't be possible to do this unless I can get a planetary drive unit to keep the prop in the center of the = engine.  

 

- What is available for light weight PSRU's?  I = know that Richard is using a Hirth gearbox, which is a good idea.  There = must be some belt drive units available as well.  The biggest problem is = that most of these units that would fit, are made for a 13B, so they're much = heavier than they need to be for a single rotor.   I'd like to stay = with a high gear ratio, since I'd plan to run the engine at higher rpms. =

 

- Lot's more questions if I decide to do = this.

 

Thanks,

Rusty (could I possibly be this much of a = masochist)

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