Avionics News May 2013 - 21
L-3 Avionics
Systems’ J.E.T. PS-835
The split gyro-power architecture of air and electricity is,
in itself, a form of redundancy and still the most common on
most legacy general aviation aircraft.
Many veteran pilots consider the suction system itself as a
questionable resource; some resolve their worries with moreadvanced pump designs.
Today, more pilots and aircraft owners eliminate the suction-system worries by making the considerable investment
in glass. While they rid their panels of all spinning-mass
gyro instruments, others try a less-expensive route and go
all-electric in their gyro instruments – spinning mass notwithstanding.
Most commonly, pilots sticking with analog panels opt for
the redundancy of a second standby suction system. The allelectric panel shifts the aircraft’s system vulnerability to its
electrical system.
Just as a standby suction system offers a singular, simple
solution to single-system dependence, some form of redundant electrical power should be considered a necessity above
and beyond any requirements for a standby instrument pack.
Glass and the Magic of Integration
The appeal of today’s solid-state attitude referencing
includes significant benefits in reliability and accuracy
over all the spinning-mass gyros available – power source
notwithstanding.
While going glass does effectively eliminate suctionsystem worries, a makeover to an all-electric panel often
Aspen Avionics offers most
of its Evolution 1000 packages
with a backup battery.
increases demands on the electrical system. Of course,
reputable avionics shops let customers know when their
aircraft’s electrical system needs more power when installing a panel driving the increase.
But increasing system output alone doesn’t add an iota
of redundancy. And with the same-capacity battery, the
battery’s standby production will end more quickly powering all that glass in a generation-system failure.
The instant the alternator stops producing power, everything electrical suddenly depends on the main battery
– and how long the power lasts depends on managing demand on the battery. The more demanded of it, the more
power it must provide and the shorter the time until it no
longer fulfills its obligations.
A redundant source beyond the battery is perhaps the
best solution, if the pilot wants maximum flexibility to act
in a crisis.
Fortunately, many ways exist to add electrical-source
redundancy to the plane just as there are multiple solutions to providing air-powered gyros with a secondary
suction source.
Continued on following page
avionics news
•
may
2013
21
Avionics News May 2013
Table of Contents for the Digital Edition of Avionics News May 2013
Point of Communication
AEA now
The View from Washington
International News and Regulatory Updates
Beltway Briefing
Power Redundancy in the Age of Digital Cockpits
Member Profile
Capital Quest
Avionics News Through the Years
Equipping for International Operations
A Conversation With...
Member Profile
What is Australia Waiting For?
AEAviators
Going Global
Business Basics
The History of Avionics
Meet the AEA Board of Directors
A Real-Time Look at Airborne Weather Radar
Aviation Aces
Legal Ease
What's New
Marketplace Classifieds
Avionics News May 2013 - Intro
Avionics News May 2013 - Cover1
Avionics News May 2013 - Cover2
Avionics News May 2013 - 1
Avionics News May 2013 - 2
Avionics News May 2013 - 3
Avionics News May 2013 - Point of Communication
Avionics News May 2013 - 5
Avionics News May 2013 - AEA now
Avionics News May 2013 - 7
Avionics News May 2013 - 8
Avionics News May 2013 - 9
Avionics News May 2013 - 10
Avionics News May 2013 - 11
Avionics News May 2013 - 12
Avionics News May 2013 - 13
Avionics News May 2013 - The View from Washington
Avionics News May 2013 - 15
Avionics News May 2013 - International News and Regulatory Updates
Avionics News May 2013 - 17
Avionics News May 2013 - 18
Avionics News May 2013 - Beltway Briefing
Avionics News May 2013 - Power Redundancy in the Age of Digital Cockpits
Avionics News May 2013 - 21
Avionics News May 2013 - 22
Avionics News May 2013 - 23
Avionics News May 2013 - Member Profile
Avionics News May 2013 - 25
Avionics News May 2013 - 26
Avionics News May 2013 - 27
Avionics News May 2013 - Capital Quest
Avionics News May 2013 - 29
Avionics News May 2013 - 30
Avionics News May 2013 - 31
Avionics News May 2013 - Avionics News Through the Years
Avionics News May 2013 - 33
Avionics News May 2013 - Equipping for International Operations
Avionics News May 2013 - 35
Avionics News May 2013 - 36
Avionics News May 2013 - 37
Avionics News May 2013 - 38
Avionics News May 2013 - 39
Avionics News May 2013 - A Conversation With...
Avionics News May 2013 - 41
Avionics News May 2013 - Member Profile
Avionics News May 2013 - 43
Avionics News May 2013 - 44
Avionics News May 2013 - 45
Avionics News May 2013 - What is Australia Waiting For?
Avionics News May 2013 - 47
Avionics News May 2013 - 48
Avionics News May 2013 - 49
Avionics News May 2013 - AEAviators
Avionics News May 2013 - 51
Avionics News May 2013 - Going Global
Avionics News May 2013 - 53
Avionics News May 2013 - 54
Avionics News May 2013 - 55
Avionics News May 2013 - Business Basics
Avionics News May 2013 - 57
Avionics News May 2013 - 58
Avionics News May 2013 - 59
Avionics News May 2013 - The History of Avionics
Avionics News May 2013 - 61
Avionics News May 2013 - 62
Avionics News May 2013 - 63
Avionics News May 2013 - Meet the AEA Board of Directors
Avionics News May 2013 - 65
Avionics News May 2013 - 66
Avionics News May 2013 - 67
Avionics News May 2013 - A Real-Time Look at Airborne Weather Radar
Avionics News May 2013 - 69
Avionics News May 2013 - 70
Avionics News May 2013 - 71
Avionics News May 2013 - 72
Avionics News May 2013 - 73
Avionics News May 2013 - Aviation Aces
Avionics News May 2013 - 75
Avionics News May 2013 - Legal Ease
Avionics News May 2013 - 77
Avionics News May 2013 - What's New
Avionics News May 2013 - 79
Avionics News May 2013 - 80
Avionics News May 2013 - 81
Avionics News May 2013 - Marketplace Classifieds
Avionics News May 2013 - 83
Avionics News May 2013 - 84
Avionics News May 2013 - Cover3
Avionics News May 2013 - Cover4
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