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X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf20aec.mail.bellsouth.net ([205.152.59.68] verified) by logan.com (CommuniGate Pro SMTP 4.3.2) with ESMTP id 966892 for flyrotary@lancaironline.net; Sat, 28 May 2005 21:12:21 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.68; envelope-from=13brv3@bellsouth.net Received: from ibm62aec.bellsouth.net ([65.6.194.9]) by imf20aec.mail.bellsouth.net with ESMTP id <20050529011137.KZRT2220.imf20aec.mail.bellsouth.net@ibm62aec.bellsouth.net> for ; Sat, 28 May 2005 21:11:37 -0400 Received: from rd ([65.6.194.9]) by ibm62aec.bellsouth.net with ESMTP id <20050529011136.OVZC8050.ibm62aec.bellsouth.net@rd> for ; Sat, 28 May 2005 21:11:36 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "Flyrotary List" Subject: smooooth, and no leaks :-) Date: Sat, 28 May 2005 20:11:51 -0500 Message-ID: <00d301c563eb$654d5b40$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00D4_01C563C1.7C775340" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_00D4_01C563C1.7C775340 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Greetings, =20 I'll be lazy and post the log entry for today. It was a good day, give = or take two ugly landings. =20 =20 Cheers, Rusty (daily log font enlarged for the visually challenged) =20 =20 =20 5-28-05 .5 hours / 48.2 total =20 I used my new ACES 2015 balancer today to balance the prop. Ended up = adding 19.3 ounces of weight at one spot. I used 1900 rpm on the prop, which = works out to be about 5300 on the engine. This seemed to be about the worst = spot, with 6000 being just a bit lower in vibration. The instructions say to = use a low cruise, and this is probably as low a cruise as I'll ever be at. =20 =20 AT 1900 prop rpm, the initial vibration reading was .45 ips, and the solution was to add 18.5 gms to one spot. I used the split weight = function to add two smaller amounts of weight to the existing spinner screw = holes. This was great, and gave a reading of .06 ips. I then used the balancer = to calculate the diff in weight for the permanent spot inside the flange of = the spinner, and it came up with 19.14 gms. I ended up using 19.3 gms, = since the longer screw would be more inboard, and have less effect, and also because I'd be drilling a hole, and removing a little weight. This was perfecto, and the final run was also at .06 ips.=20 =20 While I had the analyzer out, I did a vibration spectrum survey at the = front hub, and at the front housing on the engine. At the front hub, the only peak was the prop itself. On the front housing, there were no prominent peaks up to 10,000 hz. To me, this means there isn't any other = significant vibration such as rotor imbalance, flywheel, counterweights, etc. =20 =20 Took the plane for a quick spin around the area, and it's like night and day. No more compass spinning like it's possessed from the vibration at full throttle. Just dandy, and much better for my evap cores and such. = I still hate the fuel transfer pump though. =20 =20 I can also officially report that my oil leak is gone, gone, GONE! = Temps are awesome, but still could close the oil scoop some. I climbed from = 80 ft to 5000 feet at 100 mph, with a ground OAT of 88 degrees. Max oil temp = was 186, and coolant was 215. The cowl baffle keeps them in the 160's for = oil, and 180's for water in cruise. Running out of excuses not to fly someplace. =20 ------=_NextPart_000_00D4_01C563C1.7C775340 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Greetings,

I'll be lazy = and post the=20 log entry for today. It was a good day, give or take two ugly=20 landings.

Cheers,

Rusty (daily = log font=20 enlarged for the visually challenged)

5-28-05 = .5=20 hours / 48.2 total

I used my new ACES = 2015 balancer=20 today to balance the prop. = Ended up=20 adding 19.3 ounces of weight at one spot. =20 I used 1900 rpm on the prop, which works out to be about 5300 on = the=20 engine. This seemed to be = about the=20 worst spot, with 6000 being just a bit lower in vibration. The instructions say to use a = low=20 cruise, and this is probably as low a cruise as I’ll ever be = at.

AT 1900 prop rpm, the = initial=20 vibration reading was .45 ips, and the solution was to add 18.5 gms to = one=20 spot. I used the split = weight=20 function to add two smaller amounts of weight to the existing spinner = screw=20 holes. This was great, = and gave a=20 reading of .06 ips. I = then used the=20 balancer to calculate the diff in weight for the permanent spot inside = the=20 flange of the spinner, and it came up with 19.14 gms. I ended up using 19.3 gms, = since the=20 longer screw would be more inboard, and have less effect, and also = because I’d=20 be drilling a hole, and removing a little weight. This was perfecto, and the = final run was=20 also at .06 ips.

While I had the = analyzer out, I=20 did a vibration spectrum survey at the front hub, and at the front = housing on=20 the engine. At the front = hub, the=20 only peak was the prop itself. = On=20 the front housing, there were no prominent peaks up to 10,000 hz. To me, this means there = isn’t any other=20 significant vibration such as rotor imbalance, flywheel, counterweights, = etc.

Took the plane for a = quick spin=20 around the area, and it’s like night and day. No more compass spinning like = it’s=20 possessed from the vibration at full throttle. Just dandy, and much better = for my evap=20 cores and such. = I still hate the fuel transfer = pump=20 though.

I can also officially = report that=20 my oil leak is gone, gone, GONE! = Temps are awesome, but still could close the oil scoop some. I climbed from 80 ft to 5000 = feet at 100=20 mph, with a ground OAT of 88 degrees. =20 Max oil temp was 186, and coolant was 215. The cowl baffle keeps them in = the 160’s=20 for oil, and 180’s for = water in=20 cruise. Running out of = excuses not=20 to fly someplace. =20

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