X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) From: "Bobby Hughes BHughes@qnsinc.net" Received: from us-smtp-delivery-128.mimecast.com ([63.128.21.128] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTP id 1176507 for flyrotary@lancaironline.net; Sat, 30 Jan 2021 20:44:03 -0500 Received-SPF: pass receiver=logan.com; client-ip=63.128.21.128; envelope-from=bhughes@qnsinc.net Received: from QNSI-EX2016.qnsinc.local (207-91-159-28.nstci.net [207.91.159.28]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-288-kewB2S7fPOCPfgvqe84jew-1; Sat, 30 Jan 2021 20:43:26 -0500 X-MC-Unique: kewB2S7fPOCPfgvqe84jew-1 Received: from QNSI-EX2016.qnsinc.local (10.0.0.34) by QNSI-EX2016.qnsinc.local (10.0.0.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2044.4; Sat, 30 Jan 2021 19:43:25 -0600 Received: from QNSI-EX2016.qnsinc.local ([fe80::e455:3daa:dac4:de26]) by QNSI-EX2016.qnsinc.local ([fe80::e455:3daa:dac4:de26%3]) with mapi id 15.01.2044.012; Sat, 30 Jan 2021 19:43:25 -0600 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Ross Farnham - Cooling video Thread-Topic: [FlyRotary] Re: Ross Farnham - Cooling video Thread-Index: AQHW93HgLRytnIhL+kq1KJucU1+qhapA9gqW Date: Sun, 31 Jan 2021 01:43:25 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA28A264 smtp.mailfrom=bhughes@qnsinc.net X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: qnsinc.net Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_BL0PR11MB3153189873F00532D05A73D5A6B79BL0PR11MB3153namp_" --_000_BL0PR11MB3153189873F00532D05A73D5A6B79BL0PR11MB3153namp_ Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable That=92s correct Charlie. Vans store list the weight of the models they se= ll. Bobby Get Outlook for iOS ________________________________ From: Rotary motors in aircraft on behalf of = Charlie England ceengland7@gmail.com Sent: Saturday, January 30, 2021 7:41:07 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Ross Farnham - Cooling video Hey Bobby, I suspect that 34-36# number is for 2 blade composite blades in = a constant speed hub. A typical Hartzell 2 blade aluminum for a 4 cyl Lyc w= eighs about 55# (not including the governor). The Sensenich fixed pitch met= al for Lycs on RVs weighs about 35#. Charlie On 1/30/2021 6:32 PM, Bobby Hughes BHughes@qnsinc.net wrote: The anemometer will add a little flow resistance. Charlie=92s tuff test may= be easier to visualize while trying different during vanes. The prop is ra= ted for an IO540 or up to 300 HP. Surprisingly most constant speed props r= ated for 180 hp + weigh in at 34-36#. Bobby From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Friday, January 29, 2021 11:02 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Ross Farnham - Cooling video Bobby, I am going to bring down a leaf blower with my anemometer and take m= easurements. Will add some turning vanes and test on the ground. This is th= e tinkering I like to do, now that I have a flyable plane. Holly crap, 48lb= s for electric prop? Charlie, thank you for the pictures (and videos). I wonder with my digital = electronics, if I can get accurate enough to measure the pluses. Place two = pitot tubes facing front and back inside the ducting. Hmm interesting. I ag= ree with you that the wedge in theory is different than in practice. My duc= ts are the same idea as yours, so will add the turning vanes. Jeff, I wish we could exit out exhaust out the sides like in the Bull Moose= . I think with our high velocity of exhaust exit speed, we must be able to = harness that energy to help pull air out of the cowl. Just a trade off of h= aving a short exhaust dumping out, or long exhaust under the cowl. Le Roux, thank you for the pictures. Right now I'm trying to duct my side o= il rad, down and out the cowl. If I need to get a bigger oil rad, I'll have= to move things around and add side adjustable cowl louvers I think. - Matt Boiteau On Fri, Jan 29, 2021 at 3:26 PM Le Roux Breytenbach breytenbachleroux@gmail= .com > wrote: Here is a link to the old contact magazine on old installations. You will see the side louvers on Ed Anderson RV6A Maybe he has still photos of the side louvers in his engine cowl. Think it is very effective if you install it for a side mount radiator https://issuu.com/contact.magazine/docs/contact_magazine_issue_87_rotary_is= /41 Le Roux Le Roux, I have talked with Alex a bunch over exit louvers on the side. We = are hoping to tune the exhaust dumping better to help pull air out of the b= ottom of the cowl. I don't see too many exit louvers though on planes. Any = reason for it? -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.= html Disclaimer The information contained in this communication from the sender is confiden= tial. It is intended solely for use by the recipient and others authorized = to receive it. If you are not the recipient, you are hereby notified that a= ny disclosure, copying, distribution or taking action in relation of the co= ntents of this information is strictly prohibited and may be unlawful. This email has been scanned for viruses and malware, and may have been auto= matically archived by Mimecast Ltd, an innovator in Software as a Service (= SaaS) for business. Providing a safer and more useful place for your human = generated data. Specializing in; Security, archiving and compliance. To fin= d out more Click Here. [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-anim= ated-no-repeat-v1.gif] Virus-free. www.avast.com --_000_BL0PR11MB3153189873F00532D05A73D5A6B79BL0PR11MB3153namp_ Content-Type: text/html; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable
That=92s correct Charlie.  Vans store list the weight of the models th= ey sell.  Bobby 

Get Outlook for iOS
From: Rotary motors in airc= raft <flyrotary@lancaironline.net> on behalf of Charlie England ceeng= land7@gmail.com <flyrotary@lancaironline.net>
Sent: Saturday, January 30, 2021 7:41:07 PM
To: Rotary motors in aircraft <flyrotary@lancaironline.net> Subject: [FlyRotary] Re: Ross Farnham - Cooling video
 
Hey Bobby, I suspect that 34-36# number is= for 2 blade composite blades in a constant speed hub. A typical Hartzell 2= blade aluminum for a 4 cyl Lyc weighs about 55# (not including the governo= r). The Sensenich fixed pitch metal for Lycs on RVs weighs about 35#.

Charlie

On 1/30/2021 6:32 PM, Bobby Hughes BHughes@qnsinc.net wrote:

The anemometer will a= dd a little flow resistance. Charlie=92s tuff test may be easier to visuali= ze while trying different during vanes. The prop is rated for an IO540  or up to 300 HP. Surprisingly most constant speed props= rated for 180 hp + weigh in at 34-36#.

 

Bobby

 

From: Rota= ry motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Friday, January 29, 2021 11:02 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Ross Farnham - Cooling video

 

Bobby, I am going to bring down a leaf blower with= my anemometer and take measurements. Will add some turning vanes and = test on the ground. This is the tinkering I like to do, now that I have a f= lyable plane. Holly crap, 48lbs for electric prop?

Charlie, thank you for the pictures (and videos). I wonder with my digital = electronics, if I can get accurate enough to measure the pluses. Place= two pitot tubes facing front and back inside the ducting. Hmm interesting.= I agree with you that the wedge in theory is different than in practice. My ducts are the same idea as yours, so wil= l add the turning vanes.

Jeff, I wish we could exit out exhaust out the sides like in the Bull Moose= . I think with our high velocity of exhaust exit speed, we must be abl= e to harness that energy to help pull air out of the cowl. Just a trade off= of having a short exhaust dumping out, or long exhaust under the cowl.

Le Roux, thank you for the pictures. Right now I'm trying to duct my side o= il rad, down and out the cowl. If I need to get a bigger oil rad, I'll have= to move things around and add side adjustable cowl louvers I think.

 


- Matt Boiteau

 

 

On Fri, Jan 29, 2021 at 3:26 PM Le Roux Breytenbac= h breytenbachleroux@gmail.com <flyrotary@lancaironline.net> wrote:


Here is a link to the old contact magazine on old installations.

You will see the side louvers on Ed Anderson RV6A<= /p>

Maybe he has still photos of the side louvers in h= is engine cowl.

Think it is very effective if you install  it= for a side mount radiator

 

 

Le Roux

 

 

Le Roux, I have talked with Alex a bunch over exit= louvers on the side. We are hoping to tune the exhaust dumping better to h= elp pull air out of the bottom of the cowl. I don't see too many exit louve= rs though on planes. Any reason for it?

 

 

--

Homepage:  http://www.flyrotary.com/

Archive and UnSub:   http:= //mail.lancaironline.net:81/lists/flyrotary/List.html



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The informat= ion contained in this communication from the sender is confidential. It is = intended solely for use by the recipient and others authorized to receive i= t. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking a= ction in relation of the contents of this information is strictly prohibite= d and may be unlawful.

This email has been scanned for viruses and malware, and may have been auto= matically archived by Mimecast Ltd, an innovator in Software as a Service (SaaS) for busin= ess. Providing a safer and more useful place for your human generated data. Sp= ecializing in; Security, archiving and compliance. To find out more Click Here.



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