Return-Path: Received: from [24.25.9.101] (HELO ms-smtp-02-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2.4) with ESMTP id 451512 for flyrotary@lancaironline.net; Sun, 03 Oct 2004 19:53:29 -0400 Received-SPF: none receiver=logan.com; client-ip=24.25.9.101; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-069-132-109-019.carolina.rr.com [69.132.109.19]) by ms-smtp-02-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i93Nqv4J019484 for ; Sun, 3 Oct 2004 19:52:58 -0400 (EDT) Message-ID: <000c01c4a8e3$623e2920$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] First post Ivan flight Date: Sat, 2 Oct 2004 20:53:22 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01C4A8C1.DAE03DE0" 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 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0009_01C4A8C1.DAE03DE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageGlad to hear you are back flying, Rusty. I plan on making = additional test flights this week myself since I did not get to make it = to SERFI. I almost always accelerate to 120 mph for my climb as that = has previously given the best rate of climb for my somewhat heavy RV-6A. = This new prop and gear box have increased roc by approx 500 fpm based on = the one flight to approx 1500 fpm. However, with the larger prop I think I need to do some more testing as = a slower speed but faster roc just might be in the cards. Well, its clear that a total of 28 sq inches core inlet is more than = adequate for a 13B at cruise around 5200-5400 rpm and 8 gph. My oil and = coolant stayed at 165-170 with OAT at 70F. However, when I bumped the = rpm up to 6300-6400 the oil rose to 200F and the coolant to 205F before = stabilizing given me a true airspeed of right at 200 MPH burning 11.8 = gph. So It appears I need to open my left core inlet back up a bit from = its current 10 sq inches to approx 18 sq inches. I am going to try and = get the new left duct done before heading to Lake City, Fl for the = Crook's rotary round up. Hope to see you there. Any chance of you attending Charlie England's = flyin in Mississippi weekend of the 16 Oct? Ed ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Sunday, October 03, 2004 7:26 PM Subject: [FlyRotary] First post Ivan flight Greetings, Below is the log from today. As you can see, I'm not too hopeful that = thinner oil will cure all my oil cooling problems. On the other hand, = I'm also generating more power due to the new inlet, so the oil may have = helped more than I'll be able to measure. The real test will be when I = can climb unrestricted to 8k ft or so to see what will happen. Engine = sure felt strong today :-) Rusty 10-03 04 .5 hours / 32.7 total =20 Installed the new rudder and left aileron. Also fought the leaking = oil fitting at the front of the oil cooler. I tried using a seal on it, = but that didn't work. I ended up taking the hose off, and inspecting = the sealing surface. It seems the Earl's (POS) 45 degree adapter that I = used to measure oil pressure was poorly made. It had a ridge on the = sealing surface, and pressed that into the soft aluminum bung on the = cooler. I spent some time with fine emery cloth and Scotchbrite = polishing both surfaces. Once that was done, I put on a new seal, and = tightened it up. No leaks! =20 =20 I took the plane up for a brief ride, and found there were no problems = with the new control surfaces. This was the first flight with the new = intake inlet arrangement, but I forgot to even look at the MAP. The = plane climbed at 6000 rpm at 100 mph, and something like 2400 fpm on the = VSI. I only climbed to about 2000 ft, so it wasn't much of a test. = Unfortunately, the oil temp was 205 by the time I got there, so I have = little reason to believe that thinner oil is going to make enough of a = difference to keep me from having to make some other change to the oil = cooling arrangement. I think water is still OK, but no changes will be = made until I can do some real testing. All I really wanted to do was = make a quick local flight over my neighborhood today. Sure are a lot of = blue tarps on roofs. Actual testing can continue now, with 7.3 more = hours to go on the restriction time. =20 ------=_NextPart_000_0009_01C4A8C1.DAE03DE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Glad to hear you are back flying, = Rusty.  I=20 plan on making additional test flights this week myself since I did not = get to=20 make it to SERFI.  I almost always accelerate to 120 mph for my = climb as=20 that has previously given the best rate of climb for my somewhat heavy=20 RV-6A. This new prop and gear box have increased roc by approx = 500 fpm=20 based on the one flight to approx 1500 fpm.
 
 However, with the larger prop I = think I need=20 to do some more testing as a slower speed but faster roc just might be = in the=20 cards.
 
Well, its clear that a total of 28 sq = inches core=20 inlet is more than adequate for a 13B at cruise around 5200-5400 = rpm and 8=20 gph. My oil and coolant stayed at 165-170 with OAT at 70F.  = However, when I=20 bumped the rpm up to 6300-6400 the oil rose to 200F and the coolant to = 205F=20 before stabilizing given me a true airspeed of right at 200 MPH burning = 11.8=20 gph.  So It appears I need to open my left core inlet = back up a=20 bit from its current 10 sq inches to approx 18 sq inches.  I am = going to=20 try and get the new left duct done before heading to Lake City, Fl for = the=20 Crook's rotary round up.
 
Hope to see you there.  Any chance = of you=20 attending Charlie England's flyin in Mississippi weekend of the 16=20 Oct?
 
Ed
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Sunday, October 03, 2004 = 7:26=20 PM
Subject: [FlyRotary] First post = Ivan=20 flight

Greetings,
 
Below is the = log from=20 today.  As you can see, I'm not too hopeful that thinner oil will = cure=20 all my oil cooling problems.  On the other hand, I'm also = generating more=20 power due to the new inlet, so the oil may have helped more than I'll = be able=20 to measure.  The real test will be when I can climb = unrestricted to=20 8k ft or so to see what will happen.  Engine sure felt strong = today=20 :-)
 
Rusty
 
 

10-03 04  .5 hours  /  32.7 total

 

Installed the new=20 rudder and left aileron.  = Also=20 fought the leaking oil fitting at the front of the oil cooler.  I tried using a seal on it, = but that=20 didn=92t work.  I ended = up taking=20 the hose off, and = inspecting the=20 sealing surface.  It = seems the=20 Earl=92s (POS) 45 degree adapter that I used to measure oil pressure = was poorly=20 made.  It had a ridge on = the=20 sealing surface, and pressed that into the soft aluminum bung on the=20 cooler.  I spent some = time with=20 fine emery cloth and Scotchbrite polishing both surfaces.  Once that was done, I put on = a new=20 seal, and tightened it up.  = No=20 leaks! 

 

I = took the plane=20 up for a brief ride, and found there were no problems with the new = control=20 surfaces.  This was the = first=20 flight with the new intake inlet arrangement, but I forgot to even = look at the=20 MAP.  The plane climbed = at 6000=20 rpm at 100 mph, and something = like 2400=20 fpm on the VSI.  I only = climbed to=20 about 2000 ft, so it wasn=92t much of a test.  Unfortunately, the oil temp = was 205 by=20 the time I got there, so I have little reason to believe that thinner = oil is=20 going to make enough of a difference to keep me from having to make = some other=20 change to the oil cooling arrangement. =20 I think water is still OK, but no changes will be made until I = can do=20 some real testing.  All = I really=20 wanted to do was make a quick local flight over my neighborhood = today.  Sure are a lot of blue tarps = on=20 roofs.  Actual testing = can=20 continue now, with 7.3 more hours to go on the restriction time.   

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