X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: (direct reply)\eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from mail19.syd.optusnet.com.au ([211.29.132.200] verified) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTPS id 864262 for flyrotary@lancaironline.net; Sun, 10 Apr 2005 18:05:17 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.132.200; envelope-from=lendich@optusnet.com.au Received: from george (d220-236-46-86.dsl.nsw.optusnet.com.au [220.236.46.86]) by mail19.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j3AM4SW8028534 for ; Mon, 11 Apr 2005 08:04:29 +1000 Message-ID: <004101c53e19$c65f0e30$562eecdc@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] More Rev-4 numbers- brrrrrrr Date: Mon, 11 Apr 2005 08:08:06 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003E_01C53E6D.979EA0C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_003E_01C53E6D.979EA0C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageRusty, Probably stating the obvious, my notes confirm 180 degreeF (coolant), = with oil under 160 F- for best power. So at (207 F water / 170 F oil )a little more cooling for oil and water = and your 'right on' for cooling on the ground on a hot day 90 degrees or = so. At 140/130 cruise - a little cool. My figures show anything over 180 water and 160 oil reduces power. Upper limits noted are 220 F Water/ 210F Oil. Targets for me are between 170 to 204 F Water and 160 to 210 F Oil. I believe your right when you mentioned you might need a cowl flap. George ( down under) Greetings, I'm sorry to be lazy, but here's today's log of chilly temps. Rusty=20 4-9-05 1.0 hours / 43.6 total =20 Made two 30 minute flights today, and didn't have any life threatening = problems with either. Temps were way cold on the first flight. In = climb to 3000 feet, with an OAT on the ground of 80 degrees, oil was = 170, and coolant was 207. Level at 3000 feet and 5500 rpm, TAS was = about 160 mph, oil was 130, and water 140. =20 =20 I added a plate that blocked off almost half of my cowl exit (9" wide, = and the exit it 19 inches wide). The next climb to 3000 resulted in oil = at 180, and coolant at 214. Level cruise at 5500 and 3k ft was 143 for = oil, and 157 for water. Better, but not spectacular. 6000 RPM at 3000 = feet gave 170 mph TAS, 152 oil, and 168 coolant. I can almost live with = these, and at least they should be good enough to fly for a while, but = I'm going to have to devise a cowl flap.=20 =20 Saw almost 6300 rpm in climb at 120 mph. Still a bit down from what I = hope it will be when the engine is broken in.=20 ------=_NextPart_000_003E_01C53E6D.979EA0C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Rusty,
Probably stating the obvious, my notes=20 confirm 180 degreeF (coolant), with oil under 160 F- for best=20 power.
 
So at (207 F water / 170 F = oil )a little=20 more cooling for oil and water and your 'right on' for cooling on = the=20 ground on a hot day 90 degrees or so.
 
At 140/130 cruise - a little = cool.
 
My figures show anything over = 180 water and=20 160 oil reduces power.
 
Upper limits noted are 220 F = Water/ 210F=20 Oil.
 
Targets for me are between 170 to 204 F = Water and=20 160 to 210 F Oil.
 
I believe your right when you mentioned = you might=20 need a cowl flap.
George ( down under)
 
 
 
Greetings,
 
I'm sorry to = be lazy, but=20 here's today's log of chilly temps.
 
Rusty 
 

4-9-05  = 1.0=20 hours /  43.6=20 total

 

Made two 30 minute flights today, and = didn=92t have any=20 life threatening problems with either. =20 Temps were way cold on the first flight.  In climb to 3000 feet, with = an OAT on=20 the ground of 80 degrees, oil was 170, and coolant was 207.  Level at 3000 feet and 5500 = rpm, TAS=20 was about 160 mph, oil was 130, and water 140. 

 

I added a plate that blocked off almost half of my cowl exit = (9=94 wide,=20 and the exit it 19 inches wide). =20 The next climb to 3000 resulted in oil at 180, and coolant at = 214.  Level cruise at 5500 and 3k = ft was 143=20 for oil, and 157 for water. =20 Better, but not spectacular. =20 6000 RPM at 3000 feet gave 170 mph TAS, 152 oil, and 168 = coolant.  I can almost live with = these, and at=20 least they should be good enough to fly for a while, but I'm going to have to devise a cowl = flap.=20

 

Saw almost 6300 rpm in climb at 120 mph.  Still a bit down from what I = hope it=20 will be when the engine is broken in.

 
 
 
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