X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 50 [XX] (67%) RECEIVED: IP not found on home country list (33%) BODY: contains text similar to "usd millions" Return-Path: Received: from [201.225.225.169] (HELO cwpanama.net) by logan.com (CommuniGate Pro SMTP 5.1.6) with ESMTP id 1841133 for flyrotary@lancaironline.net; Fri, 16 Feb 2007 01:17:05 -0500 Received-SPF: none receiver=logan.com; client-ip=201.225.225.169; envelope-from=rijakits@cwpanama.net Received: from [201.224.94.164] (HELO usuario5ebe209) by frontend3.cwpanama.net (CommuniGate Pro SMTP 4.2.10) with SMTP id 100407588 for flyrotary@lancaironline.net; Fri, 16 Feb 2007 01:21:51 -0500 Message-ID: <00a301c75191$efd59c10$a45ee0c9@usuario5ebe209> From: "Thomas y Reina Jakits" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Second engine start Date: Fri, 16 Feb 2007 01:16:02 -0500 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 see previous answer :) Thomas ----- Original Message ----- From: "Ed Anderson" To: "Rotary motors in aircraft" Sent: Tuesday, February 13, 2007 8:47 PM Subject: [FlyRotary] Re: Second engine start >I always get a bit nervous when the bean counters get final say on the >safety and engineering decisions {:>). However, my question is - were >there any circuit breakers present? - I certainly think there is a place >for fuses and I used them - just not in flight critical systems. > > Ed > ----- Original Message ----- > From: "Thomas y Reina Jakits" > To: "Rotary motors in aircraft" > Sent: Tuesday, February 13, 2007 7:29 PM > Subject: [FlyRotary] Re: Second engine start > > >> Just finished a Factory Transition Course (Theory and Flight) for the >> Eurocopter AS350B3 helicopter. >> That thing has a LOT of fuses in the panels. Asking the instructor why >> fuses and not CB's, he said: "Fuses are cheaper!" >> And that in a helicopter that cost around $2.2M ........ >> >> Thomas J. >> >> >> ----- Original Message ----- >> From: "Ed Anderson" >> To: "Rotary motors in aircraft" >> Sent: Tuesday, February 13, 2007 10:17 AM >> Subject: [FlyRotary] Re: Second engine start >> >> >>> Glad to hear, you got it "almost" purring, Bill. >>> >>> I'm beating an old drum here, but would feel remiss if I didn't beat it >>> one more time. I would not ever use fuses for any installation critical >>> system such as fuel or ignition. Can use them for anything else (and I >>> do use fuses). The reason is exactly what you discovered - a blown >>> fuse - cause by ( at the moment )an unknown - but apparently transitory >>> problem (since it is not continuing to blow). That's the key >>> (transitory) - if a transitory fault happens and the fuse blows on a >>> engine critical system - you are out of luck unless already on the >>> ground while a resetting of a CB may regain function. While its true a >>> CB reset may not save you (if the fault is persistent) - but then again >>> it may. >>> >>> In my 2000+ hours of flying in military aircraft, I have had CB pop and >>> regained the system by simply resetting the CB. Certainly does not work >>> when a persistent problem exists - but, it can save your bacon if the >>> problem is transitory. >>> >>> There, my 0.02 and I feel better.{:>) >>> >>> Ed >>> >>> >>> >>> ----- Original Message ----- >>> From: "Bill Bradburry" >>> To: "Rotary motors in aircraft" >>> Sent: Tuesday, February 13, 2007 8:55 AM >>> Subject: [FlyRotary] Second engine start >>> >>> >>>> OK, so after having discovered a loose engine to battery ground (which >>>> prevented the starter from properly engaging) and an open oil line >>>> (which made a mess! that will long live in infamy) our hero continues >>>> his engine start saga.... >>>> >>>> The engine would not seem to fire after these incidents and my friend, >>>> Simon Ramirez, said he didn't think the plugs were firing. We put a >>>> timing light on the plugs and sure enough, no spark! >>>> >>>> We discovered that the 10A fuse on the ignition circuit providing power >>>> to the igniters had blown. After replacing the fuse, we were getting >>>> flashes on the timing light! I am concerned about why the fuse might >>>> have blown, but so far, it is holding up. >>>> >>>> Now the engine starts, but only seems to want to run at high revs. It >>>> also seems to run better when cold start is on. I have not figured out >>>> if this is just because the engine is cold, or if the condition is >>>> chronic. The temp outside at the time was in the low 70s. >>>> >>>> Bob, hangar next door, told me that on occasion, there was flame coming >>>> out of the exhaust! Also people started showing up from all over the >>>> airport....That 3" straight out exhaust note is a tad harsh! >>>> especially when the engine only wants to run at high revs! >>>> >>>> I am ready to entertain suggestions about getting the engine to settle >>>> down and do the Hummm and Purrr that I hear so many of you talking >>>> about. Right now it is more like ripping down a tin building with 15 >>>> chainsaws...{:>) >>>> >>>> I am already proud of it!! >>>> >>>> Bill B >>>> >>>> -- >>>> Homepage: http://www.flyrotary.com/ >>>> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >>> >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >>> >> >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/