Return-Path: Received: from fed1mtao03.cox.net ([68.6.19.242] verified) by logan.com (CommuniGate Pro SMTP 4.1b7) with ESMTP id 2404361 for flyrotary@lancaironline.net; Thu, 05 Jun 2003 20:14:10 -0400 Received: from Leonards ([68.8.0.240]) by fed1mtao03.cox.net (InterMail vM.5.01.04.05 201-253-122-122-105-20011231) with ESMTP id <20030606001406.NXAA5853.fed1mtao03.cox.net@Leonards> for ; Thu, 5 Jun 2003 20:14:06 -0400 From: "David Leonard" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: More turbo issues Date: Thu, 5 Jun 2003 17:14:12 -0700 Message-ID: <000001c32bc0$8f1ea010$f0000844@Leonards> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C32B85.E2BFC810" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.3416 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C32B85.E2BFC810 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Interesting concern, however, there are plenty of aerobatic turboprop and jet aircraft turning their turbines even faster than the ones in our turbos. Also, several of the WWII fighters were supercharged. Don't remove that turbo Rusty, I need to see if it works :-) David Leonard The Rotary Roster: http://members.aol.com/_ht_a/rotaryroster/index.html ----- Original Message ----- From: Russell Duffy To: Rotary motors in aircraft Sent: Wednesday, June 04, 2003 10:58 PM Subject: [FlyRotary] More turbo issues Greetings, I was talking to Fred this morning, and he mentioned something I hadn't considered about the use of the turbo. The would have to be a huge gyroscopic load on the bearings of the turbo when doing aerobatics. The more I've thought about it, the more I can't recall ever hearing of an aerobatic plane with a turbo. Certainly something to think about. I have to admit that I came VERY close to removing the turbo today, but I've come this far, and now have the BUC (big ugly cowl) sized to fit everything, so I'm going ahead with the turbo. Of course the weight and balance could shoot the turbo out of the water too. Unfortunately, I seem to be at the eternal 2 month to completion mark :-) Rusty Turbo 13B powered RV-3 (experimental aircraft)...Be Afraid :-) 1993 RX-7 R1... Not stock, carry bail money :-) Interesting point on the gyrosopic loads, the wheels are fairly low mass, but very high RPM so the loads could be considerable. Yes, the dreaded old 90% complete 90% to go point. Been there also! Ed ------=_NextPart_000_0001_01C32B85.E2BFC810 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Interesting concern, however, = there are plenty of aerobatic turboprop and jet aircraft turning their = turbines even faster than the ones in our turbos. Also, several of the WWII = fighters were supercharged. Don’t remove that turbo Rusty, I need to = see if it works J

David Leonard

The Rotary = Roster:

http://memb= ers.aol.com/_ht_a/rotaryroster/index.html

----- Original Message -----

From: Russell Duffy

To: Rotary motors in aircraft =

Sent: Wednesday, June 04, 2003 10:58 = PM

Subject: [FlyRotary] More turbo = issues

Greetings,

I was talking to Fred this morning, and he mentioned something I hadn’t considered about the use of the turbo. = The would have to be a huge gyroscopic load on the bearings of the turbo when = doing aerobatics. The more I’ve thought about it, the more I = can’t recall ever hearing of an aerobatic plane with a turbo. Certainly something to think about.

I have to admit that I came VERY close to removing = the turbo today, but I’ve come this far, and now have the BUC (big ugly = cowl) sized to fit everything, so I’m going ahead with the turbo. Of = course the weight and balance could shoot the turbo out of the water = too. Unfortunately, I seem to be at the eternal 2 month to completion mark = :-)

Rusty

Turbo 13B powered RV-3 (experimental aircraft)...Be = Afraid :-)

1993 RX-7 R1... Not stock, carry bail money = :-)

Interesting point on the gyrosopic loads, the = wheels are fairly low mass, but very high RPM so the loads could be = considerable.

Yes, the dreaded old 90% complete 90% to go point. Been there also!

Ed

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