X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from bay0-omc1-s25.bay0.hotmail.com ([65.54.246.97] verified) by logan.com (CommuniGate Pro SMTP 5.1c.6) with ESMTP id 1469478 for flyrotary@lancaironline.net; Mon, 16 Oct 2006 09:47:19 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.246.97; envelope-from=lors01@msn.com Received: from hotmail.com ([65.54.250.85]) by bay0-omc1-s25.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 16 Oct 2006 06:46:58 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 16 Oct 2006 06:46:58 -0700 Message-ID: Received: from 4.171.129.213 by BAY115-DAV13.phx.gbl with DAV; Mon, 16 Oct 2006 13:46:54 +0000 X-Originating-IP: [4.171.129.213] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] What size CB or fuses.. EC 2 items.. Date: Mon, 16 Oct 2006 09:46:51 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0035_01C6F108.015D4540" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.20.0029.3000 Seal-Send-Time: Mon, 16 Oct 2006 09:46:51 -0400 X-OriginalArrivalTime: 16 Oct 2006 13:46:58.0847 (UTC) FILETIME=[8D0472F0:01C6F129] Return-Path: lors01@msn.com This is a multi-part message in MIME format. ------=_NextPart_000_0035_01C6F108.015D4540 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Answer to this one is always the same : Size the breaker to protect the = wire size used. The device hooked to the wire has nothing to do with = breaker size. The 40 amp breaker example in the installation guide was to illustrate = the importance of having separate main branches of the electrical = system, one for flight critical systems and one for other stuff. I got = a call last week from a builder who lost his engine on final on his = first flight when he turned on his landing lights. Don't let this = happen to you. =20 To reiterate more explicitly, Do NOT size the circuit breakers = according to the amp load of the devices hooked to them. Tracy ----- Original Message -----=20 From: David Staten=20 To: Rotary motors in aircraft=20 Sent: Monday, October 16, 2006 5:37 AM Subject: [FlyRotary] What size CB or fuses.. EC 2 items.. After reviewing the electronic copy of the EC-2 manual I am at a loss=20 for an explicit answer. What size fuse or CB is appropriate for the injectors.. and for the=20 coils (using LS-1 coils and I'm presuming that injectors are=20 "Standardized" to either low impedence or high impedance).. I already=20 have the resistors for my low impedance coils. I intend to run one pair of injector power wires through one CB and = the=20 other pair through another CB just for grins/giggles and I am=20 contemplating doing the same with coils as well...(trailing and = leading=20 power leads)..So.. I am actually asking what size CB for 2 coils and = for=20 2 injectors, respectively.. The manual simply says everything in = Tracy's=20 plane (FP, coils, injectors) goes through one big 40 amp breaker... Dave -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_0035_01C6F108.015D4540 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Answer to this one is always the same : Size the breaker to = protect=20 the wire size used. The device hooked to the wire has nothing to = do with=20 breaker size.

The 40 amp breaker example in the installation guide was to = illustrate the=20 importance of having separate main branches of the electrical system, = one for=20 flight critical systems and one for other stuff. I got a call last = week=20 from a builder who lost his engine on final on his first flight when he = turned=20 on his landing lights. Don't let this happen to you.

To reiterate more explicitly, Do NOT size the circuit = breakers=20 according to the amp load of the devices hooked to them.

Tracy

----- Original Message -----

From: David=20 Staten

To: Rotary motors in = aircraft

Sent: Monday, October 16, 2006 = 5:37=20 AM

Subject: [FlyRotary] What size = CB or=20 fuses.. EC 2 items..

After reviewing the electronic copy of the EC-2 manual = I am at=20 a loss
for an explicit answer.

What size fuse or CB is = appropriate=20 for the injectors.. and for the
coils (using LS-1 coils and I'm = presuming=20 that injectors are
"Standardized" to either low impedence or high=20 impedance).. I already
have the resistors for my low impedance=20 coils.

I intend to run one pair of injector power wires through = one CB=20 and the
other pair through another CB just for grins/giggles and I = am=20
contemplating doing the same with coils as well...(trailing and = leading=20
power leads)..So.. I am actually asking what size CB for 2 coils = and for=20
2 injectors, respectively.. The manual simply says everything in = Tracy's=20
plane (FP, coils, injectors) goes through one big 40 amp=20 breaker...

Dave

--
Homepage: http://www.flyrotary.com/
Archi= ve and=20 UnSub: http://mail.lanca= ironline.net/lists/flyrotary/

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