Avionics News July 2015 - 56

industry

THE STANDBY POWER DILEMMA

HOW TO MEET
THE NEED
S T O R Y

A

B Y

D A V E

sk any lucky pilot unlucky enough to suffer a loss
of electrical generating power or the pump spinning the air-driven gyros in the panel when in
instrument meteorological conditions. It's not an experience pilots care to repeat.
If, that is, the pilot is lucky enough to survive the bad luck.
This is particularly so since the lack of one or two gyro
instruments makes instrument approaches partial-panel arrivals
- one type complicated by the loss of radios and navigators, the
other by the loss of two critical gyroscopic instruments.
Among the many benefits promised by modern all-digital
panels is the elimination of failure-prone vacuum pumps, heavy
positive-air-pressure pumps, and heavy, expensive spinningmass gyros.
There's much more that benefits pilots of today's glass cockpits - a more-reliable panel, with simpler alternative-panel power
options and typically, redundancy that doesn't deprive the crew
of important attitude information or the ability to communicate.
But for both those aircraft owners fully and partially through
a digital conversion, the upgrade path may not be complete
without something comparable to the old analog panel's split56

AVIONICS NEWS

*

JULY

2015

H I G D O N

gyro system. At least, not without retaining some of that old
obsolescence to fall back on when electricity fails.
For many pilots, retaining the suction pump and those old
gyros presents the path of least hassle and cost; it also largely
negates some of the benefits of the digital equipment - simplicity, weight and reliability.
It can be the cheapest path to fulfilling Federal Aviation
Administration regulatory requirements for backing up glass attitude and airspeed instruments - but newer, lower-cost options for
both glass-instrument and electrical-power redundancy continue
to make going all glass a more-attractive option.
For a growing percentage of aircraft homebuilders, highly
functional glass panels are not only viable, but often competitive with filling a stack with analog instruments - electrical or
air-driven - and hanging an air pump on the engine.
By working with the aircraft owner on a staggered upgrade
path to all digital, the owner gets to take on the change in bites
at annual inspections - possibly at higher total costs, but with
smaller individual payments. And many available options exist
to incorporate standby power effort during the final step of the
panel's digital conversion.



Table of Contents for the Digital Edition of Avionics News July 2015

Point of Communication
AEA Now
The View from Washington
International News and Regulatory Updates
ADS-B Strategy Accelerated
Member Profile
More Power to the Panel
Legacy of Small Town Airports
A Conversation With...
Current Status of ADS-B Deployment in the U.S.
Member Profile
Garmin’s G3X Touch
Artisanal Avionics
The Standy Power Dilemma b
What’s Working?
Business Basics
Aviation Aces
What’s New
Marketplace Classifieds
Avionics News July 2015 - Intro
Avionics News July 2015 - Cover1
Avionics News July 2015 - Cover2
Avionics News July 2015 - 1
Avionics News July 2015 - 2
Avionics News July 2015 - 3
Avionics News July 2015 - Point of Communication
Avionics News July 2015 - 5
Avionics News July 2015 - AEA Now
Avionics News July 2015 - 7
Avionics News July 2015 - 8
Avionics News July 2015 - 9
Avionics News July 2015 - 10
Avionics News July 2015 - 11
Avionics News July 2015 - The View from Washington
Avionics News July 2015 - 13
Avionics News July 2015 - International News and Regulatory Updates
Avionics News July 2015 - 15
Avionics News July 2015 - 16
Avionics News July 2015 - 17
Avionics News July 2015 - ADS-B Strategy Accelerated
Avionics News July 2015 - 19
Avionics News July 2015 - 20
Avionics News July 2015 - 21
Avionics News July 2015 - Member Profile
Avionics News July 2015 - 23
Avionics News July 2015 - 24
Avionics News July 2015 - 25
Avionics News July 2015 - More Power to the Panel
Avionics News July 2015 - 27
Avionics News July 2015 - 28
Avionics News July 2015 - 29
Avionics News July 2015 - 30
Avionics News July 2015 - 31
Avionics News July 2015 - Legacy of Small Town Airports
Avionics News July 2015 - 33
Avionics News July 2015 - 34
Avionics News July 2015 - 35
Avionics News July 2015 - A Conversation With...
Avionics News July 2015 - 37
Avionics News July 2015 - Current Status of ADS-B Deployment in the U.S.
Avionics News July 2015 - 39
Avionics News July 2015 - 40
Avionics News July 2015 - 41
Avionics News July 2015 - 42
Avionics News July 2015 - 43
Avionics News July 2015 - Member Profile
Avionics News July 2015 - 45
Avionics News July 2015 - Garmin’s G3X Touch
Avionics News July 2015 - 47
Avionics News July 2015 - 48
Avionics News July 2015 - 49
Avionics News July 2015 - 50
Avionics News July 2015 - 51
Avionics News July 2015 - Artisanal Avionics
Avionics News July 2015 - 53
Avionics News July 2015 - 54
Avionics News July 2015 - 55
Avionics News July 2015 - The Standy Power Dilemma b
Avionics News July 2015 - 57
Avionics News July 2015 - 58
Avionics News July 2015 - 59
Avionics News July 2015 - What’s Working?
Avionics News July 2015 - 61
Avionics News July 2015 - 62
Avionics News July 2015 - 63
Avionics News July 2015 - Business Basics
Avionics News July 2015 - 65
Avionics News July 2015 - 66
Avionics News July 2015 - 67
Avionics News July 2015 - Aviation Aces
Avionics News July 2015 - 69
Avionics News July 2015 - 70
Avionics News July 2015 - 71
Avionics News July 2015 - 72
Avionics News July 2015 - 73
Avionics News July 2015 - What’s New
Avionics News July 2015 - 75
Avionics News July 2015 - 76
Avionics News July 2015 - 77
Avionics News July 2015 - Marketplace Classifieds
Avionics News July 2015 - 79
Avionics News July 2015 - 80
Avionics News July 2015 - Cover3
Avionics News July 2015 - Cover4
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