X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 64 [XX] (100%) BODY: contains "ambien" obfuscated Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 08 May 2007 23:44:13 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m24.mx.aol.com ([64.12.137.5] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2033215 for lml@lancaironline.net; Tue, 08 May 2007 22:46:27 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.5; envelope-from=MikeEasley@aol.com Received: from MikeEasley@aol.com by imo-m24.mx.aol.com (mail_out_v38_r9.2.) id q.bdc.1130d4c4 (32915) for ; Tue, 8 May 2007 22:45:19 -0400 (EDT) From: MikeEasley@aol.com X-Original-Message-ID: X-Original-Date: Tue, 8 May 2007 22:45:19 EDT Subject: Re: [LML] Re: IO-550 fuel injection X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1178678719" X-Mailer: 9.0 Security Edition for Windows sub 5365 X-Spam-Flag: NO -------------------------------1178678719 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Kevin, The IO-550 has a fairly low fuel flow above 10K, compared to a TSIO still pulling high power. The original ES and IV had 3/8" fuel lines and several 90 degree fittings that were quite restrictive. The newer aircraft have 1/2" lines and many builders have modified the fuel system to reduce restrictions. I flew my ES for the first two years without turning on the boost pump in flight, never. I live in CO with cooler temperatures, but the SO CAL guys have had a few vapor lock incidents due to high fuel and ambient temperatures. I would bet that most of the ESs could fly all day above 10K without the boost pump. I think it's in the procedure as a precaution, not as a necessity. Like I said, over 100 hours without ever flipping on the low boost in my ES. Mike Easley Colorado Springs ************************************** See what's free at http://www.aol.com. -------------------------------1178678719 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Kevin,
 
The IO-550 has a fairly low fuel flow above 10K, compared to a TSIO sti= ll=20 pulling high power.  The original ES and IV had 3/8" fuel lines and sev= eral=20 90 degree fittings that were quite restrictive.  The newer aircraft hav= e=20 1/2" lines and many builders have modified the fuel system to reduce=20 restrictions.  I flew my ES for the first two years without turning on=20= the=20 boost pump in flight, never.  I live in CO with cooler temperatures, bu= t=20 the SO CAL guys have had a few vapor lock incidents due to high fuel and amb= ient=20 temperatures.  I would bet that most of the ESs could fly all day above= 10K=20 without the boost pump.  I think it's in the procedure as a precaution,= not=20 as a necessity.  Like I said, over 100 hours without ever flipping on t= he=20 low boost in my ES.
 
Mike Easley
Colorado Springs



See=20= what's free at AOL= .com.
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