X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 26 Sep 2007 16:31:53 -0400 Message-ID: X-Original-Return-Path: Received: from server031.serverquality.com ([75.126.12.40] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTPS id 2353418 for lml@lancaironline.net; Wed, 26 Sep 2007 14:46:15 -0400 Received-SPF: none receiver=logan.com; client-ip=75.126.12.40; envelope-from=jeff@eurocars4less.com Received: from adsl-074-168-195-063.sip.rmo.bellsouth.net ([74.168.195.63] helo=your4dacd0ea75) by server031.serverquality.com with esmtpa (Exim 4.68) (envelope-from ) id 1Iabt8-0006a1-Lj for lml@lancaironline.net; Wed, 26 Sep 2007 13:45:35 -0500 X-Original-Message-ID: <001601c8006d$6683ad40$2301a8c0@your4dacd0ea75> Reply-To: From: X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: Lancair Legacy Avionics Master Switch Wiring Question X-Original-Date: Wed, 26 Sep 2007 14:45:23 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0013_01C8004B.DE991260" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 X-ServerQuality-MailScanner-Information: Please contact the ISP for more information X-ServerQuality-MailScanner: Not scanned: please contact your Internet E-Mail Service Provider for details X-ServerQuality-MailScanner-SpamCheck: X-ServerQuality-MailScanner-From: jeff@eurocars4less.com X-Spam-Status: No X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server031.serverquality.com X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - eurocars4less.com This is a multi-part message in MIME format. ------=_NextPart_000_0013_01C8004B.DE991260 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hey Paul, I Appreciate your 2 cents, there is a lot to consider. When I purchased = the aircraft it was a MARGINAL VRF panel, I have a IO 550 with dual = Mags. The EFIS is OP TECH with a AHRS but it wired to it's own switch. = The Avionics Master was just to power the radio stack and the encoder = for ease of operation vs: turning on and off the individual 5 switches. = I have an all electric panel with electric backup 2 1/4 ADI, ALT, VSI = and Airspeed. I'll fly some light to marginal IFR. I never need to get = anywhere that bad, but it nice to have the equipment for when you do run = into the unexpected. I really appreciate every ones feed back, I'm new = to this sight and it's been a Great Help. Paul, I was thinking about = just adding another battery for a backup, but I think I may go with the = second 20 amp alt. and a single Battery. Thoughts ??? Thanks again Jeff Jeff Rienzi Premier Motorsports, Inc. 1001 Goodworth Dr., Ste.101 Apex, NC 27539 919-418-9000 jeff@eurocars4less.com www.eurocars4less.com ----- Original Message -----=20 From: Paul Bricker=20 To: lml@lancaironline.net=20 Sent: Wednesday, September 26, 2007 2:06 PM Subject: [LML] Re: Lancair Legacy Avionics Master Switch Wiring = Question Jeff, =20 To your first question on batteries/alternators I have several = questions. 1.. Are you using magnetos or electronic ignition? If you have dual = electronic ignition I consider dual batteries/alternators essential. If = you have a single electronic/single mag system then you need to = seriously consider what happens if you lose the source to the electronic = system?=20 2.. Are you're instruments all electric or do you have vacuum power = backup? If all electric then I would again strongly consider dual = batteries/alternators=20 =20 Considering the avionics master I have to ask why you want one. The = avionics today are very tough. I don't consider them necessary. On the = other hand, if you have dual power busses, and radios split between them = for redundancy, then you need either no avionics master switches or two = of them (one for each buss). A single switch is a single point failure.=20 =20 Does your glass panel have an AHRS? If so you may wish to power it = from both busses (thru diode isolators). Many of these cannot restart in = flight and inadvertent hitting of an avionics master could render your = primary flight display useless for the remainder of the flight. =20 These and many others have run through my head and been discussed here = many times. I spent many years designing missile test range tracking and = safety systems. It's not an easy question. First you need to understand = how you intend to use your aircraft, and what could happen during = failures. Try to write it out if you can to help clarify your = expectations. The worst time to figure out how the system should work is = in hard IFR when the lights starting to dim.=20 =20 My two cents =20 Paul Bricker N63PB =20 -------------------------------------------------------------------------= ----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = jeff@eurocars4less.com Sent: Tuesday, September 25, 2007 9:55 PM To: lml@lancaironline.net Subject: [LML] Lancair Legacy Avionics Master Switch Wiring Question =20 Good Evening to All, =20 First time user on LML. Marv's been very helpful in getting me = started. Thanks Marv!!=20 Working on re-building a Legacy Panel. Wanted to get some thoughts on = Battery /alt. systems for the Legacy. read thru aero connections, (lots = of options) but wanted to get some real world feedback from builders = and owners on the different set-ups. Dual battery w/ single 60 amp alt. = vs: dual alt. ( 60 & 20 amp) with single battery, or dual / dual. I have = a single alt / single battery setup now, wanted to see if it was worth = changing things around now while everything is apart. Going from a = marginal VFR panel to an IFR OP TECH . glass panel with a Garmin Stack. = Any Thoughts ??? Thanks =20 My second question, was on wiring a Garmin stack to an avionics master = switch purchased from Lancair. The rocker switch is rated at 15 amps, = needless to say the radio stack runs allitle over the switches capacity. = I guess I'll have to use a 30 AMP relay for the switching. Any info. on = finding the correct relay to use, wiring insights, schematics, ect. . . = would be appreciated. Jeff Rienzi Premier Motorsports, Inc. 1001 Goodworth Dr., Ste.101 Apex, NC 27539 919-418-9000 jeff@eurocars4less.com www.eurocars4less.com ------=_NextPart_000_0013_01C8004B.DE991260 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 Hey Paul,
 
I Appreciate your 2 cents, there = is a lot to=20 consider. When I purchased the aircraft it was a MARGINAL VRF = panel, I=20 have a IO 550 with dual Mags. The EFIS is OP TECH with a AHRS but it = wired to=20 it's own switch. The Avionics Master was just to power the radio stack = and the=20 encoder for ease of operation vs: turning on and off the individual 5 = switches.=20 I have an all electric panel with electric backup 2 1/4 ADI, ALT, VSI = and=20 Airspeed. I'll fly some light to marginal IFR. I never need to get = anywhere that=20 bad, but it nice to have the equipment for when you do run into the = unexpected.=20 I really appreciate every ones feed back, I'm new to this sight and it's = been a=20 Great Help. Paul, I was thinking about just adding another battery for a = backup,=20 but I think I may go with the second 20 amp alt. and a single Battery. = Thoughts=20 ???
 
Thanks again
Jeff
 
 
 
 
 
 
 
Jeff Rienzi
Premier Motorsports, Inc.
1001 Goodworth Dr.,=20 Ste.101
Apex, NC 27539
919-418-9000
jeff@eurocars4less.com
www.eurocars4less.com
----- Original Message -----
From:=20 Paul=20 Bricker
Sent: Wednesday, September 26, = 2007 2:06=20 PM
Subject: [LML] Re: Lancair = Legacy=20 Avionics Master Switch Wiring Question

Jeff,

 

To your = first=20 question on batteries/alternators I have several=20 questions.

  1. Are you using magnetos = or=20 electronic ignition? If you have dual electronic ignition I consider = dual=20 batteries/alternators essential. If you have a single = electronic/single mag=20 system then you need to seriously consider what happens if you lose = the=20 source to the electronic system?=20
  2. Are you=92re = instruments all=20 electric or do you have vacuum power backup? If all electric then I = would=20 again strongly consider dual = batteries/alternators=20

 

Considering = the=20 avionics master I have to ask why you want one. The avionics today are = very=20 tough. I don=92t consider them necessary. On the other hand, if you = have dual=20 power busses, and radios split between them for redundancy, then you = need=20 either no avionics master switches or two of them (one for each buss). = A=20 single switch is a single point failure.

 

Does your = glass panel=20 have an AHRS? If so you may wish to power it from both busses (thru = diode=20 isolators). Many of these cannot restart in flight and inadvertent = hitting of=20 an avionics master could render your primary flight display useless = for the=20 remainder of the flight.

 

These and = many others=20 have run through my head and been discussed here many times. I spent = many=20 years designing missile test range tracking and safety systems. =  It=92s not=20 an easy question. First you need to understand how you intend to use = your=20 aircraft, and what could happen during failures. Try to write it out = if you=20 can to help clarify your expectations. The worst time to figure out = how the=20 system should work is in hard IFR when the lights starting to dim.=20

 

My two=20 cents

 

Paul=20 Bricker

N63PB

 

From:=20 Lancair Mailing List=20 [mailto:lml@lancaironline.net] On = Behalf Of=20 jeff@eurocars4less.com
Sent: Tuesday, September 25, = 2007 9:55=20 PM
To:=20 lml@lancaironline.net
Subject: [LML] Lancair Legacy = Avionics=20 Master Switch Wiring Question

 

Good Evening to=20 All,

 

 First time user on = LML.=20 Marv's been very helpful in getting me started. Thanks=20 Marv!! 

Working on re-building a = Legacy=20 Panel. Wanted to get some thoughts on Battery=20 /alt. systems for the Legacy. read thru aero connections, (lots of = options)=20  but wanted to get some real world feedback from builders and = owners on=20 the different set-ups. Dual battery w/ single 60 amp alt. vs: dual = alt. ( 60=20 & 20 amp) with single battery, or dual / dual. I have  a = single alt /=20 single battery setup now, wanted to see if it was worth changing=20 things around now while everything is apart. Going from a = marginal VFR=20 panel to an IFR OP TECH . glass panel with a Garmin Stack.  Any = Thoughts=20 ??? Thanks

 

My second question, was = on=20 wiring a Garmin stack to an avionics master switch purchased from = Lancair. The rocker switch is rated at 15 amps, needless to say the = radio=20 stack runs allitle over the switches capacity. I guess I'll have to = use a 30=20 AMP relay for the switching. Any info. on finding the correct = relay to=20 use, wiring insights, schematics, ect. . . would be=20 appreciated.

Jeff Rienzi
Premier=20 Motorsports, Inc.
1001=20 Goodworth Dr., Ste.101
Apex, NC 27539
919-418-9000
jeff@eurocars4less.com
www.eurocars4less.com

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