Avionics News February 2017 - 25
the output capacity of that alternator.
Likely coming soon will be new, FAA-approved
What's an owner to do? Reduce the loads on the
lithium-ion battery technology to replace lead-acid, sealed
electrical system by investing in alternative technologies
and NiCad options - providing both a substantial weight
for many of those other power consumers.
reduction and higher power density to help meet the
Thankfully, the industry offers many less-demanding
demands of the digital panel.
alternate technologies for existing aircraft systems, and
they can help offset the higher demands for electrical
Alternators: The next generation of
power inherent in adapting panels to today's digital
power generation
avionics technologies.
If the candidate aircraft still uses an old-fashioned
While not always inexpensive, almost all can be
direct-current generator, few better places exist to lower
accomplished in steps that help
weight and gain power than from
owners avoid the sticker shock
replacing the old 12-volt device for
likely to arise out of taking on all
a modern alternator with solid-state
these options at once.
electronics to rectify the alternating
LIGHT-EMITTING
Let's look at options where new
current into direct current.
DIODES ALMOST
technology provides a solution
Weight saved, power gained, and
SINGLE-HANDEDLY
needing less power.
reliability improved. It's that simple.
REVOLUTIONIZED
For aircraft already alternatorILLUMINATION
From spinner aft:
equipped, check for options with
SOLUTIONS IN EVERY
Start with the starter
higher output and/or lighter weight.
Numerous vendors offer engine
Newer designs often offer the same
WALK OF LIFE -
starters approved to replace original
output as older designs, but in
equipment manufacturer's gear, and
packages that deliver their output at
the benefits stack up on multiple
lower engine RPM - and weighing
levels. Here's what to look for
less.
compared to the OEM starter.
Customers who know appreciate
Lighter weight: The hallmark of
the higher reliability and lower
most new-technology starters stems
maintenance demands alternators
from the light weight and, typically,
offer compared to those same
lighter weight of these new starters. They come in various
standards for old-fashioned generators - particularly at
technologies - ones with permanent-magnets in the starter
idle engine RPM.
motor, others using electromagnets. Many opinions exist
regarding which approach is superior, though technicians
Light-emitting diodes: The root of
do note that the electromagnet-equipped starters tend to
many brighter solutions
draw less current when engaged.
Arguably, the greatest consumers of electrical-system
Compared to older starters, features such as sealed ball
output make it possible for pilots to see the runway in the
bearings in the part where the gear engages the flywheel,
dark - and for other pilots to see other aircraft anytime of
more-compact size and better cooling during use also
the day or night.
mark the newer generation of starters.
We're talking about lights. And because we have
Best of all, they generally require less current to start
so many roles for lights, we'll address each of them
the motor than older designs - and thanks to their higher
individually. Regardless of the role, however, the answer
RPM they tend to start engines faster.
is generally the same: LED.
Replacement starter motors are available under
Light-emitting diodes almost single-handedly
supplemental type certificates for most popular piston
Continued on following page
aircraft.
OUTSIDE, INSIDE,
AND EVERYWHERE
IN BETWEEN.
avionics news
*
february
2017
25
Table of Contents for the Digital Edition of Avionics News February 2017
No label
Avionics News February 2017 - Intro
Avionics News February 2017 - No label
Avionics News February 2017 - Cover2
Avionics News February 2017 - 1
Avionics News February 2017 - 2
Avionics News February 2017 - 3
Avionics News February 2017 - 4
Avionics News February 2017 - 5
Avionics News February 2017 - 6
Avionics News February 2017 - 7
Avionics News February 2017 - 8
Avionics News February 2017 - 9
Avionics News February 2017 - 10
Avionics News February 2017 - 11
Avionics News February 2017 - 12
Avionics News February 2017 - 13
Avionics News February 2017 - 14
Avionics News February 2017 - 15
Avionics News February 2017 - 16
Avionics News February 2017 - 17
Avionics News February 2017 - 18
Avionics News February 2017 - 19
Avionics News February 2017 - 20
Avionics News February 2017 - 21
Avionics News February 2017 - 22
Avionics News February 2017 - 23
Avionics News February 2017 - 24
Avionics News February 2017 - 25
Avionics News February 2017 - 26
Avionics News February 2017 - 27
Avionics News February 2017 - 28
Avionics News February 2017 - 29
Avionics News February 2017 - 30
Avionics News February 2017 - 31
Avionics News February 2017 - 32
Avionics News February 2017 - 33
Avionics News February 2017 - 34
Avionics News February 2017 - 35
Avionics News February 2017 - 36
Avionics News February 2017 - 37
Avionics News February 2017 - 38
Avionics News February 2017 - 39
Avionics News February 2017 - 40
Avionics News February 2017 - 41
Avionics News February 2017 - 42
Avionics News February 2017 - 43
Avionics News February 2017 - 44
Avionics News February 2017 - 45
Avionics News February 2017 - 46
Avionics News February 2017 - 47
Avionics News February 2017 - 48
Avionics News February 2017 - 49
Avionics News February 2017 - 50
Avionics News February 2017 - 51
Avionics News February 2017 - 52
Avionics News February 2017 - 53
Avionics News February 2017 - 54
Avionics News February 2017 - 55
Avionics News February 2017 - 56
Avionics News February 2017 - 57
Avionics News February 2017 - 58
Avionics News February 2017 - 59
Avionics News February 2017 - 60
Avionics News February 2017 - 61
Avionics News February 2017 - 62
Avionics News February 2017 - 63
Avionics News February 2017 - 64
Avionics News February 2017 - 65
Avionics News February 2017 - 66
Avionics News February 2017 - 67
Avionics News February 2017 - 68
Avionics News February 2017 - 69
Avionics News February 2017 - 70
Avionics News February 2017 - 71
Avionics News February 2017 - 72
Avionics News February 2017 - Cover3
Avionics News February 2017 - Cover4
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