Return-Path: Received: from [199.185.220.240] (HELO priv-edtnes56.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2631238 for flyrotary@lancaironline.net; Fri, 10 Oct 2003 02:31:05 -0400 Received: from Endurance ([207.194.22.180]) by priv-edtnes56.telusplanet.net (InterMail vM.5.01.06.05 201-253-122-130-105-20030824) with SMTP id <20031010063101.WBW10778.priv-edtnes56.telusplanet.net@Endurance> for ; Fri, 10 Oct 2003 00:31:01 -0600 From: "Haywire" To: "flyrotary" Subject: solo's & Delta T... no more emergencies Date: Thu, 9 Oct 2003 23:30:56 -0700 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0061_01C38EBD.63A2E990" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_0061_01C38EBD.63A2E990 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Hey Guy's; Well today we had very high winds (30Kts) so we sat on the ground most of the day watching my hopes of soloing before my instructor/test pilot had to leave, float away with the wind, but early evening the winds calmed enough that we got out for a very smooth half hour with no incidents. Everything was great with the engine, so my buddy bailed out and left me to fly myself. So I spent another 45 min in the circuit doing my first solo flight. whooohooo. I suppose most pilots are happy about their first solo but to build your own plane to do it with is very satisfying :-). In other news, while waiting for the winds to calm today, I installed 2 more temp sensors to measure the delta T through the coolers. I've run out of panel space on the right side, so I used the same 2 temp gauges that I already had, but added a microswitch beside each gauge. This allows me to select for each temp gauge whether I want to measure before or after the coolers. What I found was somewhat surprising. I found that the coolant rads (2 Ford evap cores plumbed in parallel) had a delta T of 20C, while the Oil cooler only had a delta T of 5C. At first I felt this was OK as I remembered that the GM cores also gave 20 degrees delta T, then I as I was about to type this up I remembered that it was 20F. So this means that I am getting a delta T of 36F. This is extremely gratifying as I chose the Ford cores against popular wisdom because they fit much better than the GM cores (smaller, thicker)(Rusty - take note) and they gave a better coolant flow rate in my tests. The oil cooler is a little disappointing to have only a Delta T of 5C or 9F. I'd expected much higher. Ed were you planning on measuring deltaT through the oil as well or just the coolant? I'd like to know what others are getting. I hope to get out again tomorrow afternoon and if the weather is better with higher ceilings, I'll do a longer climb followed by a longer run at cruise speed to allow temps to stabilize a little better. Tonight's circuits were admittedly not the ideal run for gathering data, but I thought some may be interested in my results. I'll try to gather more data in the days to come. The EWP continues to function perfectly. S. Todd Bartrim Turbo 13B RV-9Endurance C-FSTB http://www3.telus.net/haywire/RV-9/C-FSTB.htm "Whatever you vividly imagine, Ardently desire, Sincerely believe in, Enthusiastically act upon, Must inevitably come to pass". ------=_NextPart_000_0061_01C38EBD.63A2E990 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hey=20 Guy's;
    Well today we had very high winds (30Kts) so we sat on the = ground most of=20 the day watching my hopes of soloing before my instructor/test pilot had = to=20 leave, float away with the wind, but early evening the winds calmed = enough that=20 we got out for a very smooth half hour with no incidents. Everything was = great=20 with the engine, so my buddy bailed out and left me to fly = myself. So I=20 spent another 45 min in the circuit doing my first solo flight. = whooohooo. I=20 suppose most pilots are happy about their first solo but to build = your own=20 plane to do it with is very satisfying :-).
    In other news, while waiting for the winds to calm today, I=20 installed 2 more temp sensors to measure the delta T through the = coolers.=20 I've run out of panel space on the right side, so I used the same 2 temp = gauges=20 that I already had, but added a microswitch beside each gauge. This = allows me to=20 select for each temp gauge whether I want to measure before or after the = coolers.
    What I found was somewhat surprising. I found that the coolant = rads (2=20 Ford evap cores plumbed in parallel) had a delta T of 20C, while the Oil = cooler=20 only had a delta T of 5C. At first I felt this was OK as I remembered = that the=20 GM cores also gave 20 degrees delta T, then I as I was about to type = this up I=20 remembered that it was 20F. So this means that I am getting a delta T of = 36F.=20 This is extremely gratifying as I chose the Ford cores against popular = wisdom=20 because they fit much better than the GM cores (smaller, thicker)(Rusty=20 - take note) and they gave a better coolant flow rate in my=20 tests.
    The oil cooler is a little disappointing to have only a Delta T = of 5C or=20 9F. I'd expected much higher. Ed were you planning on measuring deltaT = through=20 the oil as well or just the coolant? I'd like to know what others are = getting. I=20 hope to get out again tomorrow afternoon and if the weather is better = with=20 higher ceilings, I'll do a longer climb followed by a longer run at = cruise speed=20 to allow temps to stabilize a little better. Tonight's circuits were = admittedly=20 not the ideal run for gathering data, but I thought some may be = interested in my=20 results. I'll try to gather more data in the days to come. =
    The EWP continues to function perfectly.

S. Todd Bartrim
Turbo 13B = RV-9Endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm

=   =20 "Whatever you vividly imagine, Ardently desire, Sincerely believe in,=20 Enthusiastically act upon, Must inevitably come to pass".

 
------=_NextPart_000_0061_01C38EBD.63A2E990--