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RE: Trim Systems, et. als.

Subject: RE: Trim Systems, et. als.
From: Tony Krzyzewski <tonyk@kaon.co.nz>
Date: Fri, 18 Apr 1997 16:04:14

Why the fear of things electrical? An electronic system, if well designed, can
be many times more reliable than a mechanical system. A small amount of light
and reliable electronics to complement existing systems can be very beneficial.
I am going to use a totally electronic engine management and fuel management
system in my aircraft because I know it can simplify my cockpit management. I
know that a small computer is going to be a much more reliable scanner of engine
parameters than I ever will be - if something goes out of spec then the computer
can warn me both visually and verbally. This leaves me to do the important
task of flying and frees me more scan time to watch out for the guy who has
his eyes inside the aircraft all the time. Simple electronics on board can be
used to assist with safety...every car you drive has a doors closed indicator
- why not your aircraft? For under $10 you can have a very effective check on
doors latches and for only a few dollars more this can be extended to pip pin
status.

I go along with Bob's - no resettable breakers in the cockpit  - policy as well.
In fact I am going with solid state fuses and an LED indicator panel to show
the status of each circuit. Having been in electronics for the past 20 years
I was amazed the first time I flew an aircraft to discover how much space on a
panel is devoted to circuit breakers. If a breaker trips there is a good 
electrical
reason that it did so and pushing it in to see if you can reintroduce the
fault is not the way to resolve the issue!  That breaker popped for a good
reason and it really wants to stay that way until you are on the ground.
Anyway, enough of the woffle - I unpacked my fuselage kit yesterday and I have
a zillion pieces to count :)

Tony

tonyk@kaon.co.nz


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