X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.253.156.46] (HELO canformail1.canfor.ca) by logan.com (CommuniGate Pro SMTP 5.0.6) with ESMTP id 920588 for flyrotary@lancaironline.net; Tue, 10 Jan 2006 12:47:52 -0500 Received-SPF: none receiver=logan.com; client-ip=64.253.156.46; envelope-from=Steve.Bartrim@canfor.com 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_01C6160D.DAB679B8" Subject: RE: [FlyRotary] Re: RD-1B Service alert & Rusty's damper question Date: Tue, 10 Jan 2006 09:46:58 -0800 Message-ID: <091A2D42FAF91A41B84750D269FC97E72B320E@canformail1.canfor.ca> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: RD-1B Service alert & Rusty's damper question Thread-Index: AcYTq07eG62svA5MT4Kytpnwe7zG3QCYNGzQ From: "Bartrim, Todd" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C6160D.DAB679B8 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Tracy; I have the RD-1A on my turbo 13B which while it is not recommended for turbo applications is rated for up to 200hp. Since my turbo is used only for normalization purposes (mountain flying) and take off performance (during which I use an absolute maximum of 45"MAP, but usually <40"), I doubt that I ever see 200 hp and since the RV9 is only rated for 160 hp I never intend to attempt to reach 200 hp. Does the RD-1A have a welded or pinned input shaft? And should I be concerned about it?=20 =20 Todd (too busy to put any stress on any of my airplane's parts) ________________________________ Service Alert on B drives=20 =20 I will publish a service alert later today on the website (www.rotaryaviation.com) on B drives used on turbo charged 13Bs and 20B engines. =20 =20 Decided to do this after reviewing Steve Brooks input shaft problem. His input shaft was previously used for well over 100 hours on Ed Anderson's drive (fairly early drive) with no problems. It used the welded style sun gear attachment to the input shaft. Steve's turbo engine apparently had enough torque to break the weld in the same way that Dave Leonard's (another turbo) did. =20 =20 Shortly before starting C drive production (4-23-03) we changed over to a drilled and pinned input shaft. This service alert requests (strongly) that any B drive used on a turbo charged 13B or 20B engine delivered before this date be inspected for presence of a pinned input shaft. If the sun gear is welded instead of pinned, the input shaft should be returned to RWS to have it drilled and pinned prior to any flight. This service will be performed for only the cost of materials and shipping. No problems have been encountered on RD-1, RD-1A or RD-1B drives used on normally aspirated engines but if you wish, this update can be done for a nominal service charge ( parts & shipping + shop time TBD). =20 ------_=_NextPart_001_01C6160D.DAB679B8 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Hi = Tracy;
    I have=20 the RD-1A on my turbo 13B which while it is not recommended for turbo=20 applications is rated for up to 200hp. Since my turbo is used only for=20 normalization purposes (mountain flying) and take off performance = (during=20 which I use an absolute maximum of 45"MAP, but usually <40"), I doubt = that I=20 ever see 200 hp and since the RV9 is only rated for 160 hp I never = intend to=20 attempt to reach 200 hp.
    Does the RD-1A have a = welded or=20 pinned input shaft? And should I be concerned about = it? 
 
Todd   =20 (too busy to put any stress on any of my airplane's = parts)

Service Alert on B drives
 
I will publish a service alert later today on the website (www.rotaryaviation.com) on = B drives=20 used on turbo charged 13Bs and 20B engines. 
 
Decided to do this after reviewing Steve Brooks input shaft=20 problem.  His input shaft was previously used for well over 100 = hours on=20 Ed Anderson's drive (fairly early drive) with no problems.  It = used the=20 welded style sun gear attachment to the input shaft.  Steve's = turbo=20 engine apparently had enough torque to break the weld in the same way = that=20 Dave Leonard's (another turbo) did. 
 
Shortly before starting C drive production (4-23-03)  we = changed=20 over to a drilled and pinned input shaft.  This service alert = requests=20 (strongly) that any B drive used on a turbo charged 13B or 20B engine=20 delivered before this date be inspected for presence of a pinned input = shaft.  If the sun gear is welded instead of pinned, the input = shaft=20 should be returned to RWS to have it drilled and pinned prior to=20 any flight.  This service will be performed for only the = cost of=20 materials and shipping.  No problems have been encountered on = RD-1, RD-1A=20 or RD-1B drives used on normally aspirated engines but if you wish, = this=20 update can be done for a nominal service charge ( parts & = shipping +=20 shop time TBD).
 
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