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Another option is to seek out an IO-550 owner
who wants to convert his engine from 14v to 28v. You can swap alternators and
starter with him and it will only cost you shipping (plus new gaskets).
From: Gary Casey
[mailto:casey.gary@yahoo.com]
Sent: Wednesday, September 07,
2011 8:05 AM
To: lml@lancaironline.net
Subject: Re: LIV 28v to 14v
If you simply install a 14-Volt regulator the alternators will
happily produce 14V. However, the maximum current output will not be as
high as with a designed-for-14V alternator. Perhaps that is okay since
you have dual alternators. Just another way out that might work for you.
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
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.
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