Return-Path: Received: from mail.viclink.com ([66.129.220.6] verified) by logan.com (CommuniGate Pro SMTP 4.2b8) with ESMTP id 321854 for flyrotary@lancaironline.net; Wed, 14 Jul 2004 22:07:05 -0400 Received-SPF: error receiver=logan.com; client-ip=66.129.220.6; envelope-from=pjmick@viclink.com Received: from viclink.com (p179.AS1.viclink.com [66.129.192.179]) by mail.viclink.com (8.11.7/8.11.7) with ESMTP id i6F26U671353 for ; Wed, 14 Jul 2004 19:06:30 -0700 (PDT) Message-ID: <40F5E67C.1080802@viclink.com> Date: Wed, 14 Jul 2004 19:05:48 -0700 From: Perry Mick User-Agent: Mozilla/5.0 (Windows; U; Win95; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: New Scoop References: Content-Type: multipart/alternative; boundary="------------010302010901040008000209" X-RAVMilter-Version: 8.4.3(snapshot 20030217) (mail.viclink.com) --------------010302010901040008000209 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Dave, I would question the accuracy of your oil temp gauge with that much difference between oil and coolant temps. Unless you have one huge oil cooler! DaveLeonard wrote: > Steve, I can fly about 80% power (27"MAP) straight and level > (200mph) and my coolant settles out at about 200 with oil at about > 145. This is great for 95% of everything I want out of my > plane. But prolonged climb is limited to less than 500 fpm because of > coolant temps and that takes away any bragging rights I had over the > lyc powered RV-6's. I expect to fix my cooling imbalance withing a > few months, but I agree with the others. Shoot for slightly better > cooling and you won't be disappointed. > > Dave Leonard. > > -----Original Message----- > From: Rotary motors in aircraft > [mailto:flyrotary@lancaironline.net]On Behalf Of Al Gietzen > Sent: Wednesday, July 14, 2004 5:04 PM > To: Rotary motors in aircraft > Subject: [FlyRotary] Re: New Scoop > > If I can get a 75% power cruise with oil temperature of 200-210 > and coolant > > of 190-200, I'll be happy. I need to improve my cooling > temperatures by a > > good 10-15 degrees to accomplish that. > > > > Is that a reasonable objective, or am I trying to hit a target > that is too > > low ? It seems to me that 217 oil and 200 coolant is a little on > the high > > side. And that is at about 55% power. > > > > If my objectives aren't right, it would be really easy to just > raise the > > target. In fact, it would make my day. > > > > Steve > > > > Personally, I think your objectives are about right. I designed > for 80% power on a 90F day. > > > > Al > --------------010302010901040008000209 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Dave, I would question the accuracy of your oil temp gauge with that much difference between oil and coolant temps. Unless you have one huge oil cooler!

DaveLeonard wrote:

Steve, I can fly about 80% power (27"MAP) straight and level (200mph) and my coolant settles out at about 200 with oil at about 145. This is great for 95% of everything I want out of my plane. But prolonged climb is limited to less than 500 fpm because of coolant temps and that takes away any bragging rights I had over the lyc powered RV-6's. I expect to fix my cooling imbalance withing a few months, but I agree with the others. Shoot for slightly better cooling and you won't be disappointed.

Dave Leonard.

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Al Gietzen
Sent: Wednesday, July 14, 2004 5:04 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: New Scoop

If I can get a 75% power cruise with oil temperature of 200-210 and coolant

of 190-200, I'll be happy. I need to improve my cooling temperatures by a

good 10-15 degrees to accomplish that.

Is that a reasonable objective, or am I trying to hit a target that is too

low ? It seems to me that 217 oil and 200 coolant is a little on the high

side. And that is at about 55% power.

If my objectives aren't right, it would be really easy to just raise the

target. In fact, it would make my day.

Steve

Personally, I think your objectives are about right. I designed for 80% power on a 90F day.

Al

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