X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from relay03.roc.ny.frontiernet.net ([66.133.182.166] verified) by logan.com (CommuniGate Pro SMTP 4.3.5) with ESMTP id 1021091 for flyrotary@lancaironline.net; Fri, 24 Jun 2005 23:00:03 -0400 Received-SPF: pass receiver=logan.com; client-ip=66.133.182.166; envelope-from=canarder@frontiernet.net Received: from filter01.roc.ny.frontiernet.net (filter01.roc.ny.frontiernet.net [66.133.183.68]) by relay03.roc.ny.frontiernet.net (Postfix) with ESMTP id 494D03583A5 for ; Sat, 25 Jun 2005 02:59:18 +0000 (UTC) Received: from relay03.roc.ny.frontiernet.net ([66.133.182.166]) by filter01.roc.ny.frontiernet.net (filter01.roc.ny.frontiernet.net [66.133.183.68]) (amavisd-new, port 10024) with LMTP id 11077-10-77 for ; Sat, 25 Jun 2005 02:59:18 +0000 (UTC) Received: from [127.0.0.1] (67-137-93-70.dsl2.cok.tn.frontiernet.net [67.137.93.70]) by relay03.roc.ny.frontiernet.net (Postfix) with ESMTP id A142D358361 for ; Sat, 25 Jun 2005 02:59:17 +0000 (UTC) Message-ID: <42BCC87C.8080705@frontiernet.net> Date: Fri, 24 Jun 2005 21:59:08 -0500 From: Jim Sower User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040514 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: RV-3 SP babble was Re: test stands for HP measurement References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------020501030908080709090906" X-Antivirus: avast! (VPS 0525-4, 06/24/2005), Outbound message X-Antivirus-Status: Clean X-Virus-Scanned: by amavisd-new-20040701 (2.0) at filter01.roc.ny.frontiernet.net This is a multi-part message in MIME format. --------------020501030908080709090906 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit <... We have a 138 mph speed limit ...> What if you were to use a really flat prop and limit rpm to 5500 or something. Then, when you're well into Phase II bolt on another prop. Who's gonna' know? Don't use flight following, don't ask, don't tell ,,, Jim S. Russell Duffy wrote: > Unsure of the RV3 weight - but that's my thinking of the Vision with > single rotor. > > Hi George, > > The weight is easy. Gross is alleged to be 1100 lbs, but that > was before Van got realistic :-) My empty weight with the 13B is > about 850 lbs, so I can easily make the 1320 limit. Stall speed is > supposed to be 51 mph, and the limit is 51.8 mph (45 kts). Believe it > or not (choose carefully ) my stall speed is exactly 51 mph :-) > > The catch is speed. We have a 138 mph speed limit, and the RV-3 will > likely top that with anything that will get it off the ground. > There's a bit of fuzziness in the rules though, and I think it's the > speed at max continuous allowed power. I can imagine a statement in > my logbook now- "Max continuous rpm allowed is 4500. Higher rpm > operation must be limited to 3 hours or less." :-) > > Van's lists the RV-3 as using engines from 100-160 HP, so a single > would certainly fly it, and a turbo single would fly it well. > > BTW, these are just the sorts of rationalizations that I'm using to > order a Dynon D10A EFIS Monday, pending another test of my buddy's > unit this weekend. > > Cheers, > Rusty --------------020501030908080709090906 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit <... We have a 138 mph speed limit ...>
What if you were to use a really flat prop and limit rpm to 5500 or something. Then, when you're well into Phase II bolt on another prop. Who's gonna' know?

Don't use flight following, don't ask, don't tell ,,, Jim S.

Russell Duffy wrote:

Message
Unsure of the RV3 weight - but that's my thinking of the Vision with single rotor.

Hi George,

The weight is easy. Gross is alleged to be 1100 lbs, but that was before Van got realistic :-)   My empty weight with the 13B is about 850 lbs, so I can easily make the 1320 limit. Stall speed is supposed to be 51 mph, and the limit is 51.8 mph (45 kts). Believe it or not (choose carefully <g>) my stall speed is exactly 51 mph :-)

The catch is speed. We have a 138 mph speed limit, and the RV-3 will likely top that with anything that will get it off the ground. There's a bit of fuzziness in the rules though, and I think it's the speed at max continuous allowed power. I can imagine a statement in my logbook now- "Max continuous rpm allowed is 4500.   Higher rpm operation must be limited to 3 hours or less." :-)

Van's lists the RV-3 as using engines from 100-160 HP, so a single would certainly fly it, and a turbo single would fly it well.

BTW, these are just the sorts of rationalizations that I'm using to order a Dynon D10A EFIS Monday, pending another test of my buddy's unit this weekend.

Cheers,

Rusty

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