Return-Path: Received: from [129.116.87.171] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 568782 for flyrotary@lancaironline.net; Wed, 15 Dec 2004 13:28:31 -0500 Received-SPF: none receiver=logan.com; client-ip=129.116.87.171; envelope-from=mark.steitle@austin.utexas.edu X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C4E2D3.CF32EE6E" Subject: RE: [FlyRotary] Re: M/T Prop Won't Fit PSRU Date: Wed, 15 Dec 2004 12:28:01 -0600 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69E6CBE29@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: M/T Prop Won't Fit PSRU Thread-Index: AcTi0qAj4Jmf+cupRdqUSTtg5wk2nAAAGdeQ From: "Mark R Steitle" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C4E2D3.CF32EE6E Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Tracy, I do have access (if $ufficiently bribed) to an experienced machinist, = with a Bridgeport that should be able to handle the job. What's the = chance of getting an output shaft pre-drilled with =BE" bushing holes? =20 =20 Mark S. (lawn ornament comment referred to the M/T prop.)=20 =20 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On = Behalf Of Tracy Crook Sent: Wednesday, December 15, 2004 12:16 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: M/T Prop Won't Fit PSRU =20 I have no objection to removing the 5/8" drive lugs and drilling out the = prop flange hole for 3/4" bushings. I'm just saying it probably can't = be done with a hand drill in the garage. Any good machine shop would be = able to do this with the required precision. =20 =20 Tracy (cringing at the thought of RD-1C lawn ornaments) ----- Original Message -----=20 From: Mark R Steitle =20 To: Rotary motors in aircraft =20 Sent: Wednesday, December 15, 2004 12:37 PM Subject: [FlyRotary] M/T Prop Won't Fit PSRU=20 =20 I have been working to resolve a problem for more than a month now and = thought I would query the group for a possible solution. =20 =20 If anyone else is running (or planning to run) a 3-blade M/T electric = prop with the RD-2C gearbox, I have discovered a mating problem in using = this prop/gearbox combination for my 20B. The problem is the RD-2C prop = flange comes with 3/8 id x 5/8 od bushings. The M/T prop has a stepped = hole that is =BE" for the first 3/32" and then goes to 5/8". Tracy is = not comfortable with drilling out the 5/8" bushings and M/T adamantly = advises against using anything less than =BD" prop bolts with this prop. = So, I'm at a standstill until I can get this resolved. The only = solution I can see is to press out the existing bushings and open up the = holes to accept =BE" od x =BD" id bushings. But that would require = disassembly of the gearbox and some precision machine work, possible but = not my first choice. =20 =20 Mark S. Lancair ES - 20B (with a very pricey lawn ornament) =20 ------_=_NextPart_001_01C4E2D3.CF32EE6E Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Tracy,

I do have access (if $ufficiently = bribed) to an experienced machinist, with a Bridgeport that should be able to handle the job.=A0 What’s the chance of = getting an output shaft pre-drilled with =BE” bushing holes?=A0 =

 

Mark = S.

(lawn ornament comment referred to = the M/T prop.)

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook
Sent: Wednesday, December = 15, 2004 12:16 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = M/T Prop Won't Fit PSRU

 

I have no = objection to removing the 5/8" drive lugs and drilling out the prop flange hole = for 3/4" bushings.  I'm just saying it probably can't be done with = a hand drill in the garage.  Any good machine shop would be able to = do this with the required precision. 

 

Tracy  (cringing at the thought of RD-1C lawn = ornaments)

----- Original Message ----- =

From: Mark R Steitle =

Sent: Wednesday, December 15, 2004 12:37 = PM

Subject: [FlyRotary] M/T Prop Won't Fit PSRU =

 

I have been working to resolve a = problem for more than a month now and thought I would query the group for a = possible solution. 

 

If anyone else is running (or = planning to run) a 3-blade M/T electric prop with the RD-2C gearbox, I have = discovered a mating problem in using this prop/gearbox combination for my 20B.  = The problem is the RD-2C prop flange comes with 3/8 id x 5/8 od = bushings.  The M/T prop has a stepped hole that is =BE” for the first 3/32” = and then goes to 5/8”.  Tracy is not comfortable with drilling out the 5/8” bushings and M/T = adamantly advises against using anything less than =BD” prop bolts with this prop.  So, I’m at a standstill until I can get this resolved.  The only solution I can see is to press out the existing bushings = and open up the holes to accept =BE” od x =BD” id = bushings.  But that would require disassembly of the gearbox and some precision machine = work, possible but not my first choice. 

 

Mark = S.

Lancair ES – = 20B

(with a very pricey lawn = ornament)     

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