REFLECTOR: battery

[John Tvedte]

That starter is a permanent magnet model.  PM starters have a much larger current draw  You will get better starter performance from a field wound starter - like the Sky-Tec Hi-Torque Inline (NL) as an example.

As far as batteries - I would suggest an Odyssey PC925 or PC680 - std. CG, mission requirements, etc

http://www.odysseybatteries.com/batteries.htm

http://www.skytecair.com/Wiring_Experimental.pdf
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From: reflector-bounces at tvbf.org [reflector-bounces at tvbf.org] On Behalf Of Lou Stedman [stedmanlou at roadrunner.com]
Sent: Thursday, June 26, 2008 9:28 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: battery

The battery is an Interstate, 12 volt, mounted in the nose, with #2 stranded wire running all of the way back to the engine. Connections are clean. As long as I have owned this aircraft, starting has been a bit slow. When you first apply power to the started it will hesitate, groan, and then begin to turn the flywheel. Sometimes I will have to let off on the key and try again to get it to turn over. Once that happens the engine will usually start on the first revolution, providing I don't flood it. I have a sky-tec starter, model #149-12LS. I have a battery tender plugged in at all times when the aircraft is in the hanger. Hope this is enough information.

Lou Stedman
Velocity N7044Q
Olean, NY
----- Original Message -----
From: Keith Hallsten<mailto:KeithHallsten at quiknet.com>
To: 'Velocity Aircraft Owners and Builders list'<mailto:reflector at tvbf.org>
Sent: Thursday, June 26, 2008 1:30 AM
Subject: Re: REFLECTOR: battery

Lou,

Which battery are you using now?  Is the battery in the nose position (under the canard)?  Are the battery cables #2 copper with solid, tight end connections?  Has starting always been weak, or has it gotten weaker recently?

Starting problems may be due to the battery (particularly if it’s old or abused), but there are lots of other potential causes.  Generally any sealed lead-acid (SLA) battery of moderate size will have plenty of snort to crank an engine, provided it is getting charged.  A bit more information is needed to help with diagnosis.

Keith Hallsten


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From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Lou Stedman
Sent: Wednesday, June 25, 2008 7:53 PM
To: Reflector Velocity
Subject: REFLECTOR: battery

Hi guys
I am not happy with the cranking power of my battery. I am turning an LYC io-360, any recommendations?

Lou Stedman
Velocity N7044Q
Olean, NY

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