X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 06 Sep 2011 10:31:07 -0400 Message-ID: X-Original-Return-Path: Received: from hrndva-omtalb.mail.rr.com ([71.74.56.125] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTP id 5115135 for lml@lancaironline.net; Tue, 06 Sep 2011 10:15:03 -0400 Received-SPF: none receiver=logan.com; client-ip=71.74.56.125; envelope-from=Wolfgang@MiCom.net X-Original-Return-Path: X-Authority-Analysis: v=1.1 cv=hYZYwEn6AKazWLoXuCKKTQjUqAdcGu6fIqD+Oh7rMYo= c=1 sm=0 a=ttCsPuSJ-FAA:10 a=MHZY6FYWMEQOp7S43i2QIw==:17 a=Ia-xEzejAAAA:8 a=tl9skkFqa6YuqsPK9EAA:9 a=wPNLvfGTeEIA:10 a=EzXvWhQp4_cA:10 a=SSmOFEACAAAA:8 a=yMhMjlubAAAA:8 a=aatUQebYAAAA:8 a=P8Tpb-mgD6_r43tNQyQA:9 a=VnZngCPyJd7kBHXL1kEA:7 a=rBKJJ2Jc0C4A:10 a=MHZY6FYWMEQOp7S43i2QIw==:117 X-Cloudmark-Score: 0 X-Originating-IP: 74.218.201.50 Received: from [74.218.201.50] ([74.218.201.50:1278] helo=lobo) by hrndva-oedge01.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id FE/F5-01937-3CA266E4; Tue, 06 Sep 2011 14:14:27 +0000 X-Original-Message-ID: <005a01cc6c9f$2fd04540$6401a8c0@lobo> From: "Wolfgang" X-Original-To: References: Subject: Re: LIV 28v to 14v X-Original-Date: Tue, 6 Sep 2011 10:13:44 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0057_01CC6C7D.A8856CD0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0057_01CC6C7D.A8856CD0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I'm not familiar with the LIV speed brakes. If they're cable operated, = where does the 14V come in ? If the 14V is just for the indicator lights = then no problem, replace the bulbs. As for the 14V hydraulic pack and heated pitot, those are two of the = heaviest uses of electricity. Inverters or dropdown regulators are not = practical. Replace them with 28V units. The question is what is less cost, replacing those two units with 28V or = replacing the dual alternators with 14V Wolfgang ----- Original Message -----=20 From: Nicholas Paczkowski=20 To: lml@lancaironline.net=20 Sent: Monday, September 05, 2011 5:14 PM Subject: LIV 28v to 14v I have 14v (a) Precise Flight cable operated speed brakes; (b) = hydraulic pack; and (c) heated pitot tube all installed and working in = my LIV project. However I have acquired a TSIO 550B with a (dual = alternator) 28v system. I would like to go with the 28v system but I = hate to go backwards (not to mention the expense) to retrofit my 14v = equipment. I am wondering if it is possible/advisable to run a 28v = system but utilize my 14v equipment by installing individual = transformers for some or all of (a), (b) or (c) above? Thanks for any = advice any of you may have. =20 =20 ------=_NextPart_000_0057_01CC6C7D.A8856CD0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I'm not familiar with the LIV speed = brakes. If=20 they're cable operated, where does the 14V come in ? If the 14V is just = for the=20 indicator lights then no problem, replace the bulbs.
As for the 14V hydraulic pack and = heated pitot,=20 those are two of the heaviest uses of electricity. Inverters or dropdown = regulators are not practical. Replace them with 28V units.
 
The question is what is less cost, = replacing those=20 two units with 28V or replacing the dual alternators with = 14V
 
Wolfgang
 
----- Original Message -----
From:=20 Nicholas=20 Paczkowski
Sent: Monday, September 05, = 2011 5:14=20 PM
Subject: LIV 28v to 14v

I have 14v (a) Precise Flight cable operated = speed brakes;=20 (b) hydraulic pack; and (c) heated pitot tube all installed and = working in my=20 LIV project. However I have acquired a TSIO 550B with a  (dual=20 alternator) 28v system. I would like to go with the 28v system but I = hate to=20 go backwards (not to mention the expense) to retrofit my 14v = equipment.=20  I am wondering if it is possible/advisable to run a 28v system = but=20 utilize my 14v equipment by installing individual transformers for = some or all=20 of (a), (b) or (c) above? Thanks for any advice any of you may=20 have.

 

 

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