Return-Path: Received: from fed1rmmtao10.cox.net ([68.230.241.29] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 855154 for flyrotary@lancaironline.net; Tue, 05 Apr 2005 00:26:27 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.29; envelope-from=ALVentures@cox.net Received: from BigAl ([68.7.14.39]) by fed1rmmtao10.cox.net (InterMail vM.6.01.04.00 201-2131-118-20041027) with ESMTP id <20050405042540.WNSE2123.fed1rmmtao10.cox.net@BigAl> for ; Tue, 5 Apr 2005 00:25:40 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Break In Period? Date: Mon, 4 Apr 2005 21:25:52 -0700 Message-ID: <000001c53997$8d8696e0$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C5395C.E12A2FE0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C5395C.E12A2FE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable My 20B had about an hour of running on the dyno before we started some = power runs, and probably 2 hours before we ran WOT power curves up to 7000 = rpm. I was running Castrol mineral based oil, and had discussed oils and dyno = plans with David Atkins before running. He agreed it best not to run = synthetic, and didn't make any caution about doing the high power, high rpm with = only a couple of hours on the engine. It seems to have survived just fine. = This was not a new engine, just newly rebuilt - but I think all it needed was = new seals. =20 My could probably get 6 different opinions by asking 5 different people. =20 Al =20 =20 Hi Joe, =20 The instructions I got from Bruce Turrentine was to limit RPM's to 4500 for 5 hours on the ground, then 6000 for the next 15 hours. Flight during this period only if 6000 is adequate. He wants to keep temps below 200 F during this time also. =20 I don't know how much is needed vs CYA, but I figure after that much running time I will have a good feeling about reliability of the system. =20 Bob W. =20 =20 On Mon, 4 Apr 2005 12:32:23 -0700 wrote: =20 > I have a friend who bought a new engine form "Hayes Rotary" up here in > Redmond, WA. These guys are very knowledgeable guys. They told him > to keep the RPM's under 4000 for the first 1,000 - 1,500 miles to > allow the engine to "break in". =20 >=20 > =20 >=20 > I've never heard of this for rotaries. That represents about 20 hrs of > running before first take-off in an airplane (assuming more than idle > RPM). =20 >=20 > =20 >=20 > Is this needed? >=20 > =20 >=20 > Joe Hull >=20 > Bellevue, WA >=20 > Cozy MK IV >=20 >=20 =20 =20 --=20 http://www.bob-white.com N93BD - Rotary Powered BD-4 (real soon) =20 >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0001_01C5395C.E12A2FE0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

My 20B had about an hour of running on the dyno = before we started some power runs, and probably 2 hours before we ran WOT power = curves up to 7000 rpm. I was running Castrol mineral based oil, and had = discussed oils and dyno plans with David Atkins before running. He agreed it = best not to run synthetic, and didn’t make any caution about doing the = high power, high rpm with only a couple of hours on the engine. It = seems to have survived just fine. This was not a new engine, just newly = rebuilt – but I think all it needed was new seals.

<= /font>

My could = probably get 6 different opinions by asking 5 different people.

<= /font>

Al

<= /font>

<= /font>

Hi Joe,

The instructions I got from Bruce Turrentine was to limit RPM's to = 4500

for 5 hours on the ground, then 6000 for the next 15 hours. = Flight

during this period only if 6000 is adequate. He wants to keep = temps

below 200 F during this time also.

I don't know how much is needed vs CYA, but I figure after that = much

running time I will have a good feeling about reliability of the = system.

Bob W.

On Mon, 4 Apr 2005 12:32:23 -0700

<joeh@pilgrimtech.com> wrote:

> I have a friend who bought a new engine form "Hayes Rotary" up = here in

> Redmond, WA. These guys are very knowledgeable = guys. They told him

> to keep the RPM's under 4000 for the first 1,000 - 1,500 miles = to

> allow the engine to "break in".

>

>

>

> I've never heard of this for rotaries. That represents about 20 hrs = of

> running before first take-off in an airplane (assuming more than = idle

> RPM).

>

>

>

> Is this needed?

>

>

>

> Joe Hull

>

> Bellevue, WA

>

> Cozy MK IV

>

>

--

http://www.bob-white.com

N93BD - Rotary Powered BD-4 (real soon)

>> Homepage: http://www.flyrotary.com/

>> Archive: = http://lancaironline.net/lists/flyrotary/List.html

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