X-Virus-Scanned: clean according to Sophos on Logan.com From: "Bill Bradburry" Received: from vms173021pub.verizon.net ([206.46.173.21] verified) by logan.com (CommuniGate Pro SMTP 6.1.2) with ESMTPS id 7703171 for flyrotary@lancaironline.net; Wed, 20 May 2015 16:39:34 -0400 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.21; envelope-from=bbradburry@verizon.net Received: from Desktop ([71.164.185.6]) by vms173021.mailsrvcs.net (Oracle Communications Messaging Server 7.0.5.32.0 64bit (built Jul 16 2014)) with ESMTPA id <0NOO004AB1CFIE30@vms173021.mailsrvcs.net> for flyrotary@lancaironline.net; Wed, 20 May 2015 15:38:49 -0500 (CDT) X-CMAE-Score: 0 X-CMAE-Analysis: v=2.1 cv=AawGxMSu c=1 sm=1 tr=0 a=20weQFHSdBTlwctzPCQ/Gw==:117 a=kUPQlYmSbg0A:10 a=o1OHuDzbAAAA:8 a=oR5dmqMzAAAA:8 a=-9mUelKeXuEA:10 a=h1PgugrvaO0A:10 a=r77TgQKjGQsHNAKrUKIA:9 a=9iDbn-4jx3cA:10 a=cKsnjEOsciEA:10 a=gZbpxnkM3yUA:10 a=Ia-xEzejAAAA:8 a=v3Qc_I4Elsgr0Uk73UcA:9 a=T_iem0biY1yF-IEm:21 a=FpDiXQYvhYzLd4AS:21 a=CjuIK1q_8ugA:10 a=SSmOFEACAAAA:8 a=NnlElsW5-6fzHyV_ihAA:9 a=-oRwPMtAezyGiWpS:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 To: "'Rotary motors in aircraft'" References: In-reply-to: Subject: RE: [FlyRotary] Re: Return to Flight - 2 Date: Wed, 20 May 2015 15:38:42 -0500 Message-id: <36CE1FAE4D6F48B697EF0FD369DA6D33@Desktop> MIME-version: 1.0 Content-type: multipart/alternative; boundary="----=_NextPart_000_0018_01D09313.12B44490" X-Mailer: Microsoft Office Outlook 11 Thread-index: AdCTGkA+o9nkNxgpS2W27Cvy3/sBXAAIoDfA X-MIMEOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 This is a multi-part message in MIME format. ------=_NextPart_000_0018_01D09313.12B44490 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Steve, How do you know that you were producing 174 HP? Bill _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Wednesday, May 20, 2015 11:29 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Return to Flight - 2 Bill, At 6000 RPM, HP was 174 and MAP was 37" Hg. The radiator for the test stand is larger than what would be needed in an aircraft. It is capable of maintaining a 200 degree coolant out of the engine at the above power setting with 0.8" H20 pressure difference across the core. It is from a BMW(320i?) with a core 23"wide, 17" long, 1.25" thick, and a fine fin spacing of about 20 per inch. It was given to me because the plastic tanks were leaking. I cleaned it up and welded aluminum tanks onto it. It is mounted at an oblique angle in the duct. A photo of the heat exchanger inlet ducts is attached. The oil cooler is a reasonable size and is capable of maintaining 200 degree oil out of the cooler at the above power setting with 2.4" H20 pressure difference across the core. It should also be noted that this is at a density altitude of about 8000 ft which decreases the cooling capacity relative to sea level. Steve _____ From: Rotary motors in aircraft on behalf of Bill Bradburry Sent: Wednesday, May 20, 2015 8:16 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Return to Flight - 2 Steve, That is a great chart! Amazing what you can learn with a little data. At the end of the test, it looks like you revved the engine up to 5000, then 5500, then 6000 for a couple of minutes and the temp seemed to stabilize at about 205 for both water and oil. Is this where your test engine runs with only prop air to cool it? What kind of HP do you think the turbo Renesis is doing at 6000? That seems like a really good cooling system to cool what is probably over 200 HP with just the prop blast. Do you think it would do that if cowled? Bill ------=_NextPart_000_0018_01D09313.12B44490 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Steve,

How do you know that you were = producing 174 HP?

Bill

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Wednesday, May 20, = 2015 11:29 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Return to Flight - 2

Bill,

At 6000 RPM, = HP was 174 and MAP was 37" Hg.

The radiator = for the test stand is larger than what would be needed in an = aircraft. It is capable of maintaining a 200 degree coolant out of the engine = at the above power setting with 0.8" H20 pressure difference across the core. It is from a BMW(320i?) with a core 23"wide, = 17" long, 1.25" thick, and a fine fin spacing of about 20 per = inch. It was given to me because the plastic tanks were leaking. I cleaned = it up and welded aluminum tanks onto it. It is mounted at an oblique = angle in the duct. A photo of the heat exchanger inlet ducts is = attached.

The oil = cooler is a reasonable size and is capable of maintaining 200 degree oil out of the = cooler at the above power setting with 2.4" H20 pressure difference across = the core.

It should = also be noted that this is at a density altitude of about 8000 ft which = decreases the cooling capacity relative to sea level.

Steve

From: = Rotary motors in aircraft <flyrotary@lancaironline.net> on behalf of Bill Bradburry <flyrotary@lancaironline.net>
Sent: Wednesday, May 20, = 2015 8:16 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Return to Flight - 2

Steve,

That is a great chart! Amazing what you can learn with a little = data.

At the end of = the test, it looks like you revved the engine up to 5000, then 5500, then 6000 for = a couple of minutes and the temp seemed to stabilize at about 205 for both = water and oil. Is this where your test engine runs with only prop air to = cool it? What kind of HP do you think the turbo Renesis is doing at 6000? That seems like a really good cooling system to cool what is probably over 200 HP with just the prop blast. Do you think it = would do that if cowled?

Bill =

------=_NextPart_000_0018_01D09313.12B44490--