X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=JejCUnCV c=1 sm=1 tr=0 a=eFBQFpTHgAL+VL8MZ9Ce/g==:117 a=xycr6CVXJRVtFs4WRGOeRA==:17 a=E5NmQfObTbMA:10 a=DAwyPP_o2Byb1YXLmDAA:9 a=Ia-xEzejAAAA:8 a=pGLkceISAAAA:8 a=on22okXAAAAA:8 a=7g1VtSJxAAAA:8 a=f62r0cJUSk5xYWDFaDkA:9 a=aL9EhGUkZVsKGcLg:21 a=iDP_--1cJDOn65g2:21 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=lDNl2lIEhZKvKMjIUR5gOGDH5rM=:19 a=vASxNxnCRdsktQF-:21 a=z4Sbd7Uf3qxTsKW6:21 a=dADgkVvFGgY3_n8n:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 a=Urk15JJjZg1Xo0ryW_k8:22 a=NPqpj5bUEVj9vR1HIonK:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "Marc Wiese cardmarc@charter.net" Received: from [47.43.20.26] (HELO impout002.msg.chrl.nc.charter.net) by logan.com (CommuniGate Pro SMTP 6.2.12) with ESMTPS id 12545186 for flyrotary@lancaironline.net; Thu, 09 May 2019 09:52:51 -0400 Received-SPF: pass receiver=logan.com; client-ip=47.43.20.26; envelope-from=cardmarc@charter.net Received: from HomeDesktop ([97.94.202.172]) by cmsmtp with ESMTP id OjTNhjq52HCSyOjTNhJShu; Thu, 09 May 2019 13:52:33 +0000 Authentication-Results: charter.net; none X-Authority-Analysis: v=2.3 cv=YbkJGDZf c=1 sm=1 tr=0 a=xycr6CVXJRVtFs4WRGOeRA==:117 a=xycr6CVXJRVtFs4WRGOeRA==:17 a=DAwyPP_o2Byb1YXLmDAA:9 a=Ia-xEzejAAAA:8 a=pGLkceISAAAA:8 a=on22okXAAAAA:8 a=7g1VtSJxAAAA:8 a=f62r0cJUSk5xYWDFaDkA:9 a=aL9EhGUkZVsKGcLg:21 a=iDP_--1cJDOn65g2:21 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=lDNl2lIEhZKvKMjIUR5gOGDH5rM=:19 a=vASxNxnCRdsktQF-:21 a=z4Sbd7Uf3qxTsKW6:21 a=dADgkVvFGgY3_n8n:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 a=Urk15JJjZg1Xo0ryW_k8:22 a=NPqpj5bUEVj9vR1HIonK:22 a=grOzbf7U_OpcSX4AJOnl:22 To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Marcotte PSRU Date: Thu, 9 May 2019 08:52:33 -0500 Message-ID: <002c01d5066e$74023a90$5c06afb0$@charter.net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002D_01D50644.8B2EA390" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AdUGbkLt1ytmcB/DR7C/cxpyJ/qxEQ== Content-Language: en-us X-CMAE-Envelope: MS4wfE47anEgZIIHrHGbpNiGMlRLd0NKwJmWiyI7DQCV7AGcXAGvbHOvPNfb+N0ph6ktcXr7dd2ym7hH5IyBkmZaCm6WZaCpIK4cSNlp6UnGfF9PHBCidKhf n723MOypcRzVM5rHKWW4hevhf1PYSnEsD+9qWdsACB0anfcT+udakMqDg03sXBVcUUnxNSJK90SkGw== This is a multipart message in MIME format. ------=_NextPart_000_002D_01D50644.8B2EA390 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable John, Do you have any documentation that came with the Marcotte redrive you = have? Installation/maintenance/operations stuff? Does yours have a cs = prop provision on it? I ask because I have one available to me but need = to make sure it is worthy. What is yours weight? Reduction ratio? Could = you email me what you have on it (if anything, sounds like from what you = experienced, there isn=E2=80=99t much!) Marc =20 =20 From: Rotary motors in aircraft =20 Sent: Wednesday, May 08, 2019 7:50 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Venting the Reduction Drive =20 Be careful with the venting, on my Marcotte redrive the venting was not = adequate and the prop shaft seal blew out and caused a fire and an off = airport landing which nearly destroyed me and the airplane. Like be very cautious. = John Downing, RX7 with Marcotte redrive in Witman W 10.=20 =20 On Tue, May 7, 2019 at 11:15 PM Matt Boiteau mattboiteau@gmail.com = > = wrote: I've been experimenting on Neil's PSRU with sealing it up. Only adding a = breather vent on the rear housing. So far I've only done ground testing, = but all seems well enough to fly with it soon enough. The Tygon house in = the picture was only to see the oil flow, it's capped off now. I ran = gear oil 70w-140 and it was way to thick and came out the breather vent, = so went back down to my normal engine oil 20w-50. Filled half full, but = I think I can go a little less, haven't tested the idle level yet. I have a temp sensor (1/3 down), and a digital level sensor (half way) = installed in the rear housing as well. =20 - Matt Boiteau On 2019-05-07 12:32:26 PM, Steven W. Boese SBoese@uwyo.edu = > wrote: If the original return line was not enlarged, the "vent" line simply = acted as an additional return line and my gearboxes operated completely = filled with oil.=20 Steve Boese=20 > On May 7, 2019, at 9:41 AM, Jeff Whaley jwhaley@datacast.com = wrote:=20 >=20 > =E2=97=86 This message was sent from a non-UWYO address. Please = exercise caution when clicking links or opening attachments from = external sources.=20 >=20 >=20 > Hi Steve, is the enlarging of the oil return necessary?=20 > I thought you first tried enlarging the return line expecting it to = improve draining, only to find no improvement until the vent line was = added.=20 > Jeff=20 >=20 > Jeff,=20 > At this point I have only 3 hr of flight time on the gearbox with the = modified drain and vent. I have not observed a significant effect with = respect to power absorption or heat generation.=20 >=20 > Connecting the vent line to the foot of the rotor housing was = ineffective even though this location was above the oil level. = Connecting the vent line to the area of the oil filler opening at the = top of the center iron allowed the gearbox to drain as intended.=20 >=20 > The most troublesome part of the modification was enlarging the oil = return to 1/2" NPT in the rotor housing foot.=20 >=20 > Steve Boese=20 >=20 >=20 > --=20 > Homepage: http://www.flyrotary.com/=20 > Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html=20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_002D_01D50644.8B2EA390 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

John,

Do you = have any documentation that came with the Marcotte redrive you have? = Installation/maintenance/operations stuff? Does yours have a cs prop = provision on it? I ask because I have one available to me but need to = make sure it is worthy. What is yours weight? Reduction ratio? Could you = email me what you have on it (if anything, sounds like from what you = experienced, there isn=E2=80=99t much!)

Marc

 

 

From: Rotary motors in aircraft = <flyrotary@lancaironline.net>
Sent: Wednesday, May 08, = 2019 7:50 PM
To: Rotary motors in aircraft = <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: = Venting the Reduction Drive

 

Be = careful with the venting, on my Marcotte redrive the venting was not = adequate and the prop shaft seal blew out and caused  a fire and an = off airport landing

which nearly = destroyed me and the airplane.  Like be very cautious.  John = Downing, RX7 with Marcotte redrive in Witman W = 10. 

 

On = Tue, May 7, 2019 at 11:15 PM Matt Boiteau mattboiteau@gmail.com <flyrotary@lancaironline.net> wrote:

I'v= e been experimenting on Neil's PSRU with sealing it up. Only adding a = breather vent on the rear housing. So far I've only done ground testing, = but all seems well enough to fly with it soon enough. The Tygon house in = the picture was only to see the oil flow, it's capped off now. I ran = gear oil 70w-140 and it was way to thick and came out the breather vent, = so went back down to my normal engine oil 20w-50. Filled half full, but = I think I can go a little less, haven't tested the idle level = yet.

O= n 2019-05-07 12:32:26 PM, Steven W. Boese SBoese@uwyo.edu = <flyrotary@lancaironline.net> = wrote:

If = the original return line was not enlarged, the "vent" line = simply acted as an additional return line and my gearboxes operated = completely filled with oil.

Steve Boese

> On May 7, = 2019, at 9:41 AM, Jeff Whaley jwhaley@datacast.com wrote:
>
> = =E2=97=86 = This message was sent from a non-UWYO address. Please exercise caution = when clicking links or opening attachments from external sources. =
>
>
> Hi Steve, is the enlarging of the oil return = necessary?
> I thought you first tried enlarging the return line = expecting it to improve draining, only to find no improvement until the = vent line was added.
> Jeff
>
> Jeff,
> At = this point I have only 3 hr of flight time on the gearbox with the = modified drain and vent. I have not observed a significant effect with = respect to power absorption or heat generation.
>
> = Connecting the vent line to the foot of the rotor housing was = ineffective even though this location was above the oil level. = Connecting the vent line to the area of the oil filler opening at the = top of the center iron allowed the gearbox to drain as intended. =
>
> The most troublesome part of the modification was = enlarging the oil return to 1/2" NPT in the rotor housing foot. =
>
> Steve Boese
>
>
> --
> = Homepage: http://www.flyrotary.com/
> Archive and = UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.h= tml

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