X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 10 [X] Return-Path: Received: from bay0-omc3-s7.bay0.hotmail.com ([65.54.246.207] verified) by logan.com (CommuniGate Pro SMTP 5.1.3) with ESMTP id 1665493 for flyrotary@lancaironline.net; Mon, 11 Dec 2006 22:20:51 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.246.207; envelope-from=lors01@msn.com Received: from hotmail.com ([65.54.250.83]) by bay0-omc3-s7.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.2668); Mon, 11 Dec 2006 15:34:44 -0800 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 11 Dec 2006 15:34:44 -0800 Message-ID: Received: from 4.171.147.248 by BAY115-DAV11.phx.gbl with DAV; Mon, 11 Dec 2006 23:34:41 +0000 X-Originating-IP: [4.171.147.248] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Great Flight Date: Mon, 11 Dec 2006 18:34:36 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00D5_01C71D53.027C2550" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.50.0034.2000 Seal-Send-Time: Mon, 11 Dec 2006 18:34:36 -0500 X-OriginalArrivalTime: 11 Dec 2006 23:34:44.0068 (UTC) FILETIME=[EFDC2240:01C71D7C] Return-Path: lors01@msn.com This is a multi-part message in MIME format. ------=_NextPart_000_00D5_01C71D53.027C2550 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Steve, as you noticed, fiddling with mode 3 while in-flight is risky = since it changes the mixture at all throttle settings, not just the one = you are currently using.=20 Mode 3 is only for initial ground tuning to get the injector flow rate = in the ball park. As noted in the instructions, Mode 3 should be set at = high throttle with the mixture control at 12:00. If you find that Mode = 1 or 9 runs out of range and can't get the mixture correct at some = setting, re-evaluate the situation for a possible change to Mode 3 when = safely on the ground. Also note that it can take many pushes on the Store button in mode 9 to = get full range of adjustment. Just because the program knob is at max = rich setting does not mean that pushing the button sets it at full rich = in this mode. Instructions give full details on this. =20 BTW, I appreciate all the feedback I can get on how the EC2 works on a = turbo setup since I have never tweaked on one myself. Glad you are enjoying the plane at last! Tracy ----- Original Message -----=20 From: Steve Brooks=20 To: Rotary motors in aircraft=20 Sent: Monday, December 11, 2006 9:24 AM Subject: [FlyRotary] Great Flight Yesterday, the weather was outstanding. A little cool at 56 degrees, = but sunny and no wind. It was very nice to drive only 15 minutes to the = airport, to take the plane up for a flight around the area. =20 On the flight bringing it up to NC 2 weeks ago, I thought that the = engine was running a little rich, and after trying option 9 to lean it = up, it really didn't change too much. Then, in a moment of sheer = brilliance, I decided to lean it a little more using mode 3. Still = didn't change the mixture much, but I was happy with it, so I left it = alone. When I throttled back upon arrival, the mixture bottomed out, = and the engine stumbled pretty bad. After a quick rotation of the = mixture control, and a couple clicks on option 9, it was running good = again, until I throttled back a little more, and started the cycle all = over again. =20 A couple of days later, I went to the airport and decided at this = point, my best option was to return to factory default, and start over, = which I did. After tuning it for 10 minutes or so, I figured it was = good enough for a flight. =20 After preflight and taxi, my oil temperature was at 140 degrees, but = my coolant was still laying on the 100 degree peg. That is quite = different than normal. I waited for a few minutes until it started to = move, just to make sure that it was working. When I took off, I pushed = the throttle forward, and the engine roared to life. It really roared = to life, because it was running at about 8 lbs of boost. I backed it = down a little to 5 lbs, and it backfired once, but then ran smoothly. = After climb out to about 2000 feet, the water and oil were only at 160 = degrees, which was really a surprise. It was a little cooler than = normal, but the temperatures were running about 20 degrees cooler. =20 I flew for about 20 minutes, surveying my new flying area, and just = enjoying the view. I then decided to check out the tuning and started = lowering the power. I found several points where the mixture was really = lean, and I made adjustments (option 9 only) to get it where it needed = to be. I think that it probably tuned better now, than it ever has = been, so I'm not going to mess with it anymore. =20 Temperatures never did get above 160 degrees, which makes me wonder if = I had an air bubble in the cooling system that worked out during, or = after the long flight 2 weeks ago. Whatever it is, I like it. I slowed = up to 100 kits approaching the downwind, and made a perfect approach and = landing. After the decent and landing, temperatures were at about 140 = degrees, and the engine was running very good. =20 It's very nice to can add fuel and fly, but I think that before my = next flight, I'll pull the top cowling, and just give everything a once = over, to make sure that everything is still good. I'll also re-torque = the prop. =20 =20 Steve Brooks Cozy MKIV N75CZ Turbo Rotary - 48 hours and counting.=20 ------=_NextPart_000_00D5_01C71D53.027C2550 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Steve, as you noticed,  fiddling with mode 3 while = in-flight is=20 risky since it changes the mixture at all throttle settings, not just = the one=20 you are currently using. 
 
 Mode 3 is only for initial ground tuning to get the injector = flow=20 rate in the ball park.  As noted in the instructions, Mode 3 should = be set=20 at high throttle with the mixture control at 12:00.   If you = find that=20 Mode 1 or 9 runs out of range and can't get the mixture correct at some=20 setting,  re-evaluate the situation for a possible change to Mode 3 = when=20 safely on the ground.
 
Also note that it can take many pushes on the Store button in = mode 9=20 to get full range of adjustment.   Just because the program = knob is at=20 max rich setting does not mean that pushing the button sets it at full = rich in=20 this mode.   Instructions give full details on this.  =
 
BTW, I appreciate all the feedback I can get on how the EC2 works = on a=20 turbo setup since I have never tweaked on one myself.
 
Glad you are enjoying the plane at last!
 
Tracy
----- Original Message -----
From: Steve=20 Brooks
To: Rotary motors in = aircraft
Sent: Monday, December 11, 2006 = 9:24=20 AM
Subject: [FlyRotary] Great = Flight

Yesterday,=20 the weather was outstanding.  = A=20 little cool at 56 degrees, but sunny and no wind.  It was very nice to drive = only 15=20 minutes to the airport, to take the plane up for a flight around the=20 area.

 

On the=20 flight bringing it up to NC 2 weeks ago, I thought that the engine was = running=20 a little rich, and after trying option 9 to lean it up, it really = didn=92t=20 change too much.  Then, = in a=20 moment of sheer brilliance, I decided to lean it a little more using = mode=20 3.  Still didn=92t = change the=20 mixture much, but I was happy with it, so I left it alone.  When I throttled back upon = arrival,=20 the mixture bottomed out, and the engine stumbled pretty bad.  After a quick rotation of = the mixture=20 control, and a couple clicks on option 9, it was running good again, = until I=20 throttled back a little more, and started the cycle all over=20 again.

 

A=20 couple of days later, I went to the airport and decided at this point, = my best=20 option was to return to factory default, and start over, which I = did.  After tuning it for 10 = minutes or so,=20 I figured it was good enough for a = flight.

 

After=20 preflight and taxi, my oil temperature was at 140 degrees, but my = coolant was=20 still laying on the 100 degree peg. =20 That is quite different than normal.  I waited for a few minutes = until it=20 started to move, just to make sure that it was working.  When I took off, I pushed = the throttle=20 forward, and the engine roared to life. =20 It really roared to life, because it was running at about 8 lbs = of=20 boost.  I backed it down = a little=20 to 5 lbs, and it backfired once, but then ran smoothly.   After climb out to = about 2000=20 feet, the water and oil were only at 160 degrees, which was really a=20 surprise.  It was a = little cooler=20 than normal, but the temperatures were running about 20 degrees=20 cooler.

 

I flew=20 for about 20 minutes, surveying my new flying area, and just enjoying = the=20 view.  I then decided to = check out=20 the tuning and started lowering the power.  I found several points where = the=20 mixture was really lean, and I made adjustments (option 9 only) to get = it=20 where it needed to be.  = I think=20 that it probably tuned better now, than it ever has been, so I=92m not = going to=20 mess with it anymore.

 

Temperatures=20 never did get above 160 degrees, which makes me wonder if I had an air = bubble=20 in the cooling system that worked out during, or after the long flight = 2 weeks=20 ago.  Whatever it is, I = like=20 it.  I slowed up to 100 = kits=20 approaching the downwind, and made a perfect approach and = landing.  After the decent and = landing,=20 temperatures were at about 140 degrees, and the engine was running = very=20 good.

 

It=92s=20 very nice to can add fuel and fly, but I think that before my next = flight,=20 I=92ll pull the top cowling, and just give everything a once over, to = make sure=20 that everything is still good.  = I=92ll also re-torque the prop. =20

 

Steve=20 Brooks

Cozy=20 MKIV N75CZ

Turbo=20 Rotary =96 48 hours and counting.=20

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