X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from frontend1.cwpanama.net ([201.225.225.167] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 922026 for flyrotary@lancaironline.net; Mon, 02 May 2005 08:31:11 -0400 Received-SPF: none receiver=logan.com; client-ip=201.225.225.167; envelope-from=rijakits@cwpanama.net Received: from [201.224.93.110] (HELO usuarioq3efog0) by frontend1.cwpanama.net (CommuniGate Pro SMTP 4.2.1) with SMTP id 41009688 for flyrotary@lancaironline.net; Mon, 02 May 2005 07:43:36 -0500 Message-ID: <007a01c54f12$b4804d00$6e5de0c9@usuarioq3efog0> From: "rijakits" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Ed's new rotor housings Date: Mon, 2 May 2005 07:30:20 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0076_01C54EE8.CB545CD0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 This is a multi-part message in MIME format. ------=_NextPart_000_0076_01C54EE8.CB545CD0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit ----- Original Message ----- From: Al Gietzen To: Rotary motors in aircraft Sent: Monday, May 02, 2005 1:17 AM Subject: [FlyRotary] Re: Ed's new rotor housings Group I hate to stir the pot again, but using fuses instead of circuit brakers is asking for dead stick landings. Georges B. The fuse blew because of a wiring problem; Reset the breaker and it either won't reset, or it will trip again. How does that help? Al You just figured out you really have a wiring problem! ....not just a surge, intermitent switch short, etc. I understand the idea is to be able: a) Reset - overheated, temp. shorted circuits b) See/feel a tripped CB Though I do wonder, why e.g. on our Robinson Helicopters everything has CBs,but the clutch actuation motor, which has a fuse....... However, this probably is a safety-measure: You only need the clutch to engage the rotor system. Once engaged it will retension in flight 1-2 times, but can do without it (in case the fuse blows). However you can't ever get near "take-off" if the fuse blows during the initial engagement (or dis-engagement on shut-down). You HAVE to get out and investigate WHY the fuse blew. However there is a spare fuse holder to be able to change the blown one in the field. Sometimes the fuse seems to just "wear" out. Just put in a new one and it keeps working fine, so I really don't see the need for the fuse. A CB will also let me "change" the fuse (reset). I believe everyone is smart enough to watch a system closer once it pops a CB. Reset - watch/observe - if it pops immediately again - you probably have a serious problem. Does it hold - probably a surge or temporary overheat - BUT I still will be observing for quit a while.... Thomas Jakits (CB's for me...) ------=_NextPart_000_0076_01C54EE8.CB545CD0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
----- Original Message -----
From:=20 Al = Gietzen=20
Sent: Monday, May 02, 2005 1:17 = AM
Subject: [FlyRotary] Re: Ed's = new rotor=20 housings

 Group

I hate to stir the = pot=20 again, but using fuses instead of circuit brakers is asking for = dead=20 stick landings.

Georges=20 B.

 

The = fuse blew=20 because of a wiring problem; Reset the breaker and it either = won=92t=20 reset, or it will trip again.  How does that=20 help?

 

Al

 

You just figured = out you=20 really have a wiring problem!  ....not just a surge, = intermitent=20 switch short, etc.
I understand the = idea is to=20 be able:
a) Reset - = overheated, temp.=20 shorted circuits
b) See/feel a = tripped=20 CB

 

Though I do = wonder, why e.g.=20 on our Robinson Helicopters everything has CBs,but the clutch = actuation=20 motor, which has a fuse.......

However, this = probably is a=20 safety-measure: You only need the clutch to engage the rotor = system.=20 Once engaged it will retension in flight 1-2 times, but can do = without=20 it (in case the fuse blows). However you can't ever get near = "take-off"=20 if the fuse blows during the initial engagement (or = dis-engagement on=20 shut-down). You HAVE to get out and investigate WHY the = fuse blew.=20 However there is a spare fuse holder to be able to change the = blown one=20 in the field. Sometimes the fuse seems to just "wear" out. Just = put in a=20 new one and it keeps working fine, so I really don't see the = need for=20 the fuse. A CB will also let me "change" the fuse=20 (reset).

I believe everyone = is smart=20 enough to watch a system closer once it pops a CB. = Reset -=20 watch/observe - if it pops immediately again - you probably have = a=20 serious problem. Does it hold - probably a surge or temporary = overheat -=20 BUT I still will be observing for quit a = while....

 

Thomas Jakits = (CB's for=20 me...)

 

 

 

 

 

 

 

------=_NextPart_000_0076_01C54EE8.CB545CD0--