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When 35a of charging power isn't enough

Posted: Tue Jan 24, 2012 8:21 pm
by David Dunn
Just what you power hungry B's need when the 35a alternator doesn't cut it :mrgreen:
http://cgi.ebay.com/ebaymotors/TIERNAY- ... 4cfddabcb2

Re: When 35a of charging power isn't enough

Posted: Wed Jan 25, 2012 12:05 pm
by audiocontr
He has had that bad boy for sale MANY times. No one ever seems to bite. I wonder what the purpose of a 28vdc generator was?

Re: When 35a of charging power isn't enough

Posted: Wed Jan 25, 2012 12:16 pm
by David Dunn
audiocontr wrote:.... I wonder what the purpose of a 28vdc generator was?
Being Air Force, an APU for Air Force One's stereo when it's on the ground. :roll: :mrgreen:

Re: When 35a of charging power isn't enough

Posted: Wed Jan 25, 2012 12:47 pm
by NoahDL88
audiocontr wrote: I wonder what the purpose of a 28vdc generator was?
I'm going to go out on a limb and say it was to create 28 volts of the Direct current variety.

I wonder about the thrust they generate, if any at all, Turbine go-Kart anyone?

Re: When 35a of charging power isn't enough

Posted: Wed Jan 25, 2012 5:47 pm
by edzz
28v is a common voltage for military aircraft. Many planes do not have batteries onboard and require an external power supply until the engines are started. Our A-4 Skyhawks required an external electrical source as well as a high volume air compressor to start the engine.
This link shows an apu being used to start a Citation.

http://www.youtube.com/watch?v=9C-tUMxD8-w

Re: When 35a of charging power isn't enough

Posted: Wed Jan 25, 2012 8:59 pm
by audiocontr
Makes sense. Thanks.

Re: When 35a of charging power isn't enough

Posted: Thu Jan 26, 2012 12:13 am
by krick3tt
Very similar to the GSE (ground support equipment) that was used to start the jets on the flight line and the carrier when I was deployed in the Tonkin Gulf for the VietNam war in '65. Also had a hydraulic and high volume air start device for the planes. Never thought I would see that stuff again. Ours was painted yellow.

Re: When 35a of charging power isn't enough

Posted: Thu Jan 26, 2012 11:46 am
by edzz
krick3tt wrote:Very similar to the GSE (ground support equipment) that was used to start the jets on the flight line and the carrier when I was deployed in the Tonkin Gulf for the VietNam war in '65. Also had a hydraulic and high volume air start device for the planes. Never thought I would see that stuff again. Ours was painted yellow.
As an aviation support electrition in the Corp that was why we called it yellow gear. :lol: