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Power draw

 
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Bob Wichita



Joined: 19 Dec 2008
Posts: 36
PostPosted: Sun Feb 21, 2010 7:35 am    Post subject: Power draw Reply with quote
One of the things I failed to do when adding electrical items to my plane
was to make a chart of amperage draw. Now I find I can't run everything and
have the generator keep up with the current draw.

I love to fly at night and many towers request that you keep the landing
lights on approaching and in the pattern. According to A/S my GE landing
lights draw 100 amps each, way too much for the generator and battery. Will
have to switch to LED lights but at a terrible price.

Something to consider when building.

Bob, Wichita

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n801bh(at)netzero.com
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PostPosted: Sun Feb 21, 2010 11:10 am    Post subject: Power draw Reply with quote
Thats 100 'watts' each... not amps

Ben Haas
N801BH
www.haaspowerair.com

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n85ae



Joined: 14 Mar 2007
Posts: 403
PostPosted: Sun Feb 21, 2010 11:31 am    Post subject: Re: Power draw Reply with quote
Wow! 100 Amps for the landing lights, they should be able to see you
clear across the Atlantic on approach!

Jeff

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n85ae



Joined: 14 Mar 2007
Posts: 403
PostPosted: Sun Feb 21, 2010 11:33 am    Post subject: Re: Power draw Reply with quote
100W landing lights should be around 7-8 amps (at) 14vdc.

Jeff

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lgold(at)quantum-associat
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PostPosted: Sun Feb 21, 2010 5:58 pm    Post subject: Power draw Reply with quote
I was also pulling too many amps with landing, strobe and nav lights all on.
So at Oshkosh last year I purchased a 1-amp solid state landing light. It
cost about $200 and works OK.
Les

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xl(at)prosody.org
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PostPosted: Sun Feb 21, 2010 9:09 pm    Post subject: Power draw Reply with quote
I replaced my 4509 bulbs with bulbs that use 0.5 the power.
I made no modifications, it was 'drop in' replacement.

100 Watt - PAR36 - 4509 Sealed Beam Incandescent Light Bulb
- 13 Volt - 100PAR36/13V - GE 24650

http://www.1000bulbs.com/search.php?search_data=h7604&cat=%22%22&x=0&y=0
PAR36 - Sealed Beam Halogen Light Bulb
Overall Length: 2.75 in., Overall Diameter: 4.5 in.
50 Watt - 12 Volt - 50PAR36/12V
100,000 CBCP - Life Hours: 400
$7.97 - Catalog Code: PAR36-H7604

Joe E (at) BFI

On Sun, 21 Feb 2010, Bob Gibfried wrote:
Quote:

One of the things I failed to do when adding electrical items to my plane was
to make a chart of amperage draw. Now I find I can't run everything and have
the generator keep up with the current draw.

I love to fly at night and many towers request that you keep the landing
lights on approaching and in the pattern. According to A/S my GE landing
lights draw 100 amps each, way too much for the generator and battery. Will
have to switch to LED lights but at a terrible price.

Something to consider when building.
Bob, Wichita


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