X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-da03.mx.aol.com ([205.188.105.145] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with ESMTP id 5562214 for flyrotary@lancaironline.net; Sat, 26 May 2012 21:51:00 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.105.145; envelope-from=bktrub@aol.com Received: from mtaomg-mb01.r1000.mx.aol.com (mtaomg-mb01.r1000.mx.aol.com [172.29.41.72]) by imr-da03.mx.aol.com (8.14.1/8.14.1) with ESMTP id q4R1oLL1020085 for ; Sat, 26 May 2012 21:50:21 -0400 Received: from core-due001a.r1000.mail.aol.com (core-due001.r1000.mail.aol.com [172.29.67.65]) by mtaomg-mb01.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id D22E8E000081 for ; Sat, 26 May 2012 21:50:20 -0400 (EDT) References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: Fwd: Batteries In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: bktrub@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CF09C2356BE421_2244_1865E7_webmail-m165.sysops.aol.com" X-Mailer: AOL Webmail 36081-STANDARD Received: from 50.46.146.205 by webmail-m165.sysops.aol.com (64.12.78.180) with HTTP (WebMailUI); Sat, 26 May 2012 21:50:20 -0400 Message-Id: <8CF09C2355D9BC3-2244-634A8@webmail-m165.sysops.aol.com> X-Originating-IP: [50.46.146.205] Date: Sat, 26 May 2012 21:50:20 -0400 (EDT) x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20110426; t=1338083421; bh=18a5jV3IFOWkpRAKqV3V8k1HYmrvJ0IxsuVZ+u2o9iA=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=MQjQaaiDbe/kd961nmtGW8Xe9ZeCj4kdXDeolEFpbSWWTe52Lo8CMbeYnN07xcPHo 9O+7gjVBK7vnsm129ePl+zW8afo23W0URyH7plb0Vj8MpL7TVOHtiooURr5lDelLUV dzOGmsHlghsgEyszUFKZUuFcaaF8zobbFyEApoXU= X-AOL-SCOLL-SCORE: 0:2:488407744:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d29484fc1885c0b9d This is a multi-part message in MIME format. ----------MB_8CF09C2356BE421_2244_1865E7_webmail-m165.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" I think my batteries are ok, I'm going to take the alternator off and have = it bench tested. I'm not getting over 13.3 volts when running. I use a nipp= ondenso 40 amp internally regulated alternator with overvoltage protection.= =20 Brian Trubee -----Original Message----- From: Ernest Christley To: Rotary motors in aircraft Sent: Sat, May 26, 2012 3:54 pm Subject: [FlyRotary] Re: Fwd: Batteries If the voltage increases as you rev the engine, without any extra load, you= r=20 lectron pump is pumping. Connect a headlight for 20min. With an 18AH should shine strong. A batter= y=20 ear the end of its life will die off within a minute. The only true way to know if you have enough battery reserve is to go flyin= g,=20 urn off everything except what you need for safe flight, then cut the power= to=20 he electron pump so that your running on just battery. A stop watch will l= et=20 ou how long the battery will keep everything going. I think it would be=20 atronizing to point out the obvious defect in this plan. A major complication with running off a battery is that different electroni= c=20 omponents will stop operating at different voltages; but, whether it is th= e=20 uel pump, the ignition or the control computer, the first component to stop= =20 ill make everything suddenly quiet. Which part goes first is not necessari= ly=20 bvious. Seeing how long it will idle on the ramp with just the battery is a good fi= rst=20 pproximation. ill Bradburry wrote: >Sounds like your alternator was not running while you were reading below 1= 3 V??? =20 Bill B =20 _____ =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of bktrub@aol.com Sent: Friday, May 25, 2012 8:14 PM To: Rotary motors in aircraft Subject: [FlyRotary] Fwd: Batteries =20 -----Original Message----- From: Brian Trubee To: bktrub Sent: Fri, May 25, 2012 5:11 pm Subject: Fw: Batteries =20 =20 ----- Forwarded Message ----- From: Brian Trubee To: Rotary engine =20 Sent: Friday, May 25, 2012 5:11 PM Subject: Batteries =20 I'm nearing the finish of my phase 1 testing, and am now looking for replacement batteries. right now, I am using two of these: http://www.power-sonic.com/images/powersonic/sla_batteries/ps_psg_series/12= v olt/PS-12180_11_Feb_21.pdf ;. They are on separate contactors, so I can use either or both when flying. I use both when starting. They are two year= s old, and today when I went flying I noticed that the voltage was getting down to 11.6 volts. after landing, the voltage was up around 12.3 volts. Usually I show around 13~13.6 volts when running. I always use a float charger specifically designed for these batteries when the plane is put away. Usually the float charger shows a slow charge, but when I cam back from flying today the charger was showing a fast charge, meaning that the batteries were discharged a fair amount. Any comments on the suitablitiy of these batteries and suggestions on how to test them out for holding a charg= e or otherwise deterining their suitablity or not for my plane. I have a 40 amp Nippondenso alternator, and run an Xcom radio, a terra transponder, Dynon D10, Tracys EM2 and EC2, and one fuel pump(at a time unless landing o= r taking off) that draws around 4 and no more than 6 amps.=20 =20 Thanks,=20 Brian Trubee =20 =20 - omepage: http://www.flyrotary.com/ rchive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.h= tml ----------MB_8CF09C2356BE421_2244_1865E7_webmail-m165.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii"
I think my batteries are ok, I'm going to take the alternator off and = have it bench tested. I'm not getting over 13.3 volts when running. I use a= nippondenso 40 amp internally regulated alternator with overvoltage protec= tion.
 
Brian Trubee


= -----Original Message-----
From: Ernest Christley <echristley@att.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sat, May 26, 2012 3:54 pm
Subject: [FlyRotary] Re: Fwd: Batteries

If the=
 voltage increases as you rev the engine, without any extra load, your=20
electron pump is pumping.

Connect a headlight for 20min.  With an 18AH should shine strong.  A batter=
y=20
near the end of its life will die off within a minute.

The only true way to know if you have enough battery reserve is to go flyin=
g,=20
turn off everything except what you need for safe flight, then cut the powe=
r to=20
the electron pump so that your running on just battery.  A stop watch will =
let=20
you how long the battery will keep everything going.  I think it would be=
=20
patronizing to point out the obvious defect in this plan.

A major complication with running off a battery is that different electroni=
c=20
components will stop operating at different voltages;  but, whether it is t=
he=20
fuel pump, the ignition or the control computer, the first component to sto=
p=20
will make everything suddenly quiet.  Which part goes first is not necessar=
ily=20
obvious.

Seeing how long it will idle on the ramp with just the battery is a good fi=
rst=20
approximation.


Bill Bradburry <bbradburry@b=
ellsouth.net> wrote:

>Sounds like your alternator was not running while you were reading belo=
w 13
>V???
>
>=20
>
>Bill B
>
>=20
>
>  _____ =20
>
>From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
>Behalf Of bktrub@aol.com
>Sent: Friday, May 25, 2012 8:14 PM
>To: Rotary motors in aircraft
>Subject: [FlyRotary] Fwd: Batteries
>
>=20
>
>
>
>
>
>-----Original Message-----
>From: Brian Trubee <bktrub@yahoo=
.com>
>To: bktrub <bktrub@aol.com>
>Sent: Fri, May 25, 2012 5:11 pm
>Subject: Fw: Batteries
>
>=20
>
>=20
>
>----- Forwarded Message -----
>From: Brian Trubee <bktrub@yahoo=
.com>
>To: Rotary engine <rotary=
eng@earthlink.net>=20
>Sent: Friday, May 25, 2012 5:11 PM
>Subject: Batteries
>
>=20
>
>I'm nearing the finish of my phase 1 testing, and am now looking for
>replacement batteries. right now, I am using two of these:
>http://www.power-sonic.com/images/powerso=
nic/sla_batteries/ps_psg_series/12v
>olt/PS-12180_11_Feb_21.pdf
><http://www.power-sonic.com/images/powe=
rsonic/sla_batteries/ps_psg_series/12
>volt/PS-12180_11_Feb_21.pdf >  ;. They are on separate contactors, s=
o I can
>use either or both when flying. I use both when starting. They are two =
years
>old, and today when I went flying I noticed that the voltage was gettin=
g
>down to 11.6 volts. after landing, the voltage was up around 12.3 volts=
.
>Usually I show around 13~13.6 volts when running. I always use a float
>charger specifically designed for these batteries when the plane is put
>away. Usually the float charger shows a slow charge, but when I cam bac=
k
>from flying today the charger was showing a fast charge, meaning that t=
he
>batteries were discharged a fair amount. Any comments on the suitabliti=
y of
>these batteries and suggestions on how to test them out for holding a c=
harge
>or otherwise deterining their suitablity or not for my plane. I have a =
40
>amp Nippondenso alternator, and run an Xcom radio, a terra transponder,
>Dynon D10, Tracys EM2 and EC2, and one fuel pump(at a time unless landi=
ng or
>taking off) that draws around 4 and no more than 6 amps.=20
>
>=20
>
>Thanks,=20
>
>Brian Trubee
>
>=20
>
=09=20
--
Homepage:  http://www=
.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net:81/lists/fly=
rotary/List.html
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