Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Sat, 18 Oct 2003 15:26:06 -0400 Message-ID: X-Original-Return-Path: Received: from imo-r07.mx.aol.com ([152.163.225.103] verified) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2641786 for lml@lancaironline.net; Sat, 18 Oct 2003 13:38:57 -0400 Received: from Epijk@aol.com by imo-r07.mx.aol.com (mail_out_v36_r1.1.) id q.182.21ec788e (4184) for ; Sat, 18 Oct 2003 13:38:51 -0400 (EDT) From: Epijk@aol.com X-Original-Message-ID: <182.21ec788e.2cc2d4ab@aol.com> X-Original-Date: Sat, 18 Oct 2003 13:38:51 EDT Subject: Re: [LML] Re: 5 Blades on Cont 550? X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_182.21ec788e.2cc2d4ab_boundary" X-Mailer: 7.0 for Windows sub 10708 --part1_182.21ec788e.2cc2d4ab_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit RE: .........I guess I'm stuck with it. $16,000.00 ceiling fan?... Not necessarily. I'm not familiar with the particular 550 (520?) you're using, but IF your crankshaft has the ARP-880 hub (8 9/16" bolts, 2 1/2" dowels, 4.250 BCD, same as used on PT-6, TPE-331, and SOME GTSIO-520's) it will bolt on and control properly. There is a potential issue with blade efficiency since that prop was designed to operate at around 2200 takeoff and lower for cruise. There is another potential issue with blade retention at above 220 RPM (2700 takeoff?). MT (Michael) is the best source of info on those questions If those two issues are not critical, AND if you DON'T have the ARP-880 prop flange, we could certainly build you an adapter to fit that prop onto your crank. Jack Kane EPI, Inc. --part1_182.21ec788e.2cc2d4ab_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable RE: .........I guess I'm stuck with it. $16,000.00 ceiling fan?...

Not necessarily.

I'm not familiar with the particular 550 (520?) you're using, but IF your cr= ankshaft has the ARP-880 hub (8 9/16" bolts, 2 1/2" dowels, 4.250 BCD, same=20= as used on PT-6, TPE-331, and SOME GTSIO-520's) it will bolt on and c= ontrol properly.

There is a potential issue with blade efficiency since that prop was designe= d to operate at around 2200 takeoff and lower for cruise.

There is another potential issue with blade retention at above 220 RPM (2700= takeoff?).

MT (Michael) is the best source of info on those questions

If those two issues are not critical, AND if you DON'T have the ARP-880 prop= flange, we could certainly build you an adapter to fit that prop onto your=20= crank.

Jack Kane
EPI, Inc. --part1_182.21ec788e.2cc2d4ab_boundary--