Return-Path: Received: from imf25aec.mail.bellsouth.net ([205.152.59.73] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 569111 for flyrotary@lancaironline.net; Wed, 15 Dec 2004 18:01:34 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.73; envelope-from=atlasyts@bellsouth.net Received: from [65.11.54.242] by imf25aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20041215230105.ERIV2130.imf25aec.mail.bellsouth.net@[65.11.54.242]> for ; Wed, 15 Dec 2004 18:01:05 -0500 User-Agent: Microsoft-Entourage/10.1.4.030702.0 Date: Wed, 15 Dec 2004 18:04:02 -0500 Subject: Re: [FlyRotary] M/T Prop Won't Fit PSRU From: Bulent Aliev To: Rotary motors in aircraft Message-ID: In-Reply-To: Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3185978646_12056125" > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3185978646_12056125 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable On 12/15/04 12:37 PM, "Mark R Steitle" wrote: > I have been working to resolve a problem for more than a month now and th= ought > I would query the group for a possible solution.=A0 > =20 > If anyone else is running (or planning to run) a 3-blade M/T electric pro= p > with the RD-2C gearbox, I have discovered a mating problem in using this > prop/gearbox combination for my 20B.=A0 The problem is the RD-2C prop flang= e > comes with 3/8 id x 5/8 od bushings.=A0 The M/T prop has a stepped hole tha= t is > =BE=B2 for the first 3/32=B2 and then goes to 5/8=B2. =A0Tracy is not comfortable w= ith > drilling out the 5/8=B2 bushings and M/T adamantly advises against using > anything less than =BD=B2 prop bolts with this prop.=A0 So, I=B9m at a standstill > until I can get this resolved. =A0The only solution I can see is to press o= ut > the existing bushings and open up the holes to accept =BE=B2 od x =BD=B2 id bushi= ngs.=A0 > But that would require disassembly of the gearbox and some precision mach= ine > work, possible but not my first choice.=A0 > =20 > Mark S. > Lancair ES =AD 20B > (with a very pricey lawn ornament)=A0 =A0=A0=A0 >=20 Hi Marc, I ground (with Tracy=B9s blessing) a recess in the aluminum housing behind one bushing just enough that the bushing can back out. This way I ca= n rotate the flange and pop the bushings one at the time. Works great. You=B9ll need a air grinder and sharp grinding bit. All the work is done through one of the holes in the flange. Good Luck. Buly --B_3185978646_12056125 Content-type: text/html; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable Re: [FlyRotary] M/T Prop Won't Fit PSRU On 12/15/04 12:37 PM, &= quot;Mark R Steitle" <mark.steitle@austin.utexas.edu> wrote:

I have been working to resolve a problem for more than a month now and thou= ght I would query the group for a possible solution.=A0
 
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 pro= p/gearbox combination for my 20B.=A0 The problem is the RD-2C prop flange come= s with 3/8 id x 5/8 od bushings.=A0 The M/T prop has a stepped hole that is =BE&= #8221; for the first 3/32” and then goes to 5/8”. =A0Tracy is not = comfortable with drilling out the 5/8” bushings and M/T adamantly advi= ses against using anything less than =BD” prop bolts with this prop.=A0 So= , I’m at a standstill until I can get this resolved. =A0The only solutio= n I can see is to press out the existing bushings and open up the holes to a= ccept =BE” od x =BD” id bushings.=A0 But that would require disassembl= y of the gearbox and some precision machine work, possible but not my first = choice.=A0
 
Mark S.
Lancair ES – 20B
(with a very pricey lawn ornament)=A0 =A0=A0=A0



Hi Marc, I ground (with Tracy’s blessing) a recess in the aluminum ho= using behind one bushing just enough that the bushing can back out. This way= I can rotate the flange and pop the bushings one at the time. Works great. = You’ll need a air grinder and sharp grinding bit. All the work is done= through one of the holes in the flange. Good Luck.
Buly --B_3185978646_12056125--