X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from onempop-canada.atl.sa.earthlink.net ([207.69.195.60] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 1044592 for flyrotary@lancaironline.net; Thu, 23 Mar 2006 21:41:17 -0500 Received-SPF: none receiver=logan.com; client-ip=207.69.195.60; envelope-from=jmpcrftr@teleport.com Received: from user-11fb4eu.dsl.mindspring.com ([66.245.145.222] helo=michaelm1.teleport.com) by onempop-canada.atl.sa.earthlink.net with esmtp (Exim 3.36 #10) id 1FMcE4-0004Hu-00 for flyrotary@lancaironline.net; Thu, 23 Mar 2006 21:40:33 -0500 Message-Id: <7.0.1.0.0.20060323181634.050bf040@teleport.com> X-Mailer: QUALCOMM Windows Eudora Version 7.0.1.0 Date: Thu, 23 Mar 2006 18:39:52 -0800 To: "Rotary motors in aircraft" From: Michael McGee Subject: Rotary installed weight comparison In-Reply-To: References: Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=====================_43970359==.ALT" --=====================_43970359==.ALT Content-Type: text/plain; charset="us-ascii"; format=flowed ..(this was the thread about the [FlyRotary] Re: Rotary - FWD from Lancair ES List ).. Here's info for a rotary installation comparison if Tracy can recall his last W&B on his RV-4. Tracy, how does your plane compare to this? * My RV-4 is bone stock VFR with lights (think J3-with-a-speed-kit) first flown in '96. * Lyc O-320 E2G, 150 HP, 2 mags, carb, no vacuum system, one radio and transponder * Sensenich FP metal prop with 2 2" spacers (41 pounds total for prop & spacers) * That big stock boat anchor starter * Heavier than necessary 10 ply tires (extra 6#) because they were on sale. Empty weight 979# with 48# on the tail wheel Empty CG 69.25 inches (using the 60 inch datum) Mike McGee, RV-4 N996RV, O320-E2G, Hillsboro, OR 13B in gestation mode, RD-1C, EC-2 At 09:00 2006-03-23, you wrote: >It varies a lot depending on builder choices but I would put it >closer to an O - 320, a 30 - 45 lb difference depending on which of >the many versions of the IO - 360 that Lycoming made). The >counterweighted crankshaft on the angle valve IO-360 (200 HP >models) accounts for a 28 pound increase alone. > >Tracy > >Hennie, >I'm told the 2-rotor will come in about the same as an IO-360 >installation. This is a very common install in the RV-6, also in >the RV-4 (Tracy Crook). If you're really interested, you can get >onto the Fly Rotary group. Good bunch of guys and they will be able >to answer any question you may have about the rotary. > >Mark > > >---------- >From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] >On Behalf Of Hennie van Rooyen [HQP] >Sent: Thursday, March 23, 2006 5:56 AM >To: Rotary motors in aircraft >Subject: [FlyRotary] Re: Rotary - FWD from Lancair ES List > >Hi Mark and anyone, > >"Mazdatrix recently dyno'd a N/A peripheral-ported 13B for Paul >Lamar at 250hp @ 6000rpm, running a carburetor. That is an easy >125hp/rotor, and 250 hp from a 195# engine." > >What would be a reasonable firewall forward weight of such a N/A >complete installation? What I really want to know is what is the >lightest installation to be expected based on average experience? > >Regards, > >Hennie > --=====================_43970359==.ALT Content-Type: text/html; charset="us-ascii" ..(this was the thread about the [FlyRotary] Re: Rotary - FWD from Lancair ES List )..

Here's info for a rotary installation comparison if Tracy can recall his last W&B on his RV-4. Tracy, how does your plane compare to this?

My RV-4 is bone stock VFR with lights (think J3-with-a-speed-kit) first flown in '96.
Lyc O-320 E2G, 150 HP, 2 mags, carb, no vacuum system, one radio and transponder
Sensenich FP metal prop with 2 2" spacers (41 pounds total for prop & spacers)
That big stock boat anchor starter
Heavier than necessary 10 ply tires (extra 6#) because they were on sale.

Empty weight 979# with 48# on the tail wheel
Empty CG 69.25 inches (using the 60 inch datum)

Mike McGee, RV-4 N996RV, O320-E2G, Hillsboro, OR
13B in gestation mode, RD-1C, EC-2

At 09:00 2006-03-23, you wrote:

It varies a lot depending on builder choices but I would put it closer to an O - 320, a 30 - 45 lb difference depending on which of the many versions of the IO - 360 that Lycoming made). The counterweighted crankshaft on the angle valve IO-360 (200 HP models) accounts for a 28 pound increase alone.

Tracy

Hennie,

I’m told the 2-rotor will come in about the same as an IO-360 installation. This is a very common install in the RV-6, also in the RV-4 (Tracy Crook). If you’re really interested, you can get onto the Fly Rotary group. Good bunch of guys and they will be able to answer any question you may have about the rotary.

Mark

From: Rotary motors in aircraft [ mailto:flyrotary@lancaironline.net] On Behalf Of Hennie van Rooyen [HQP]

Sent: Thursday, March 23, 2006 5:56 AM

To: Rotary motors in aircraft

Subject: [FlyRotary] Re: Rotary - FWD from Lancair ES List

Hi Mark and anyone,

" Mazdatrix recently dyno’d a N/A peripheral-ported 13B for Paul Lamar at 250hp @ 6000rpm, running a carburetor. That is an easy 125hp/rotor, and 250 hp from a 195# engine."

What would be a reasonable firewall forward weight of such a N/A complete installation? What I really want to know is what is the lightest installation to be expected based on average experience?

Regards,

Hennie

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