Avionics News January 2014 - 48

AUTOPILOT UPGRADES
Continued from page 47

trol laws. The way you make it fly more smoothly is to
make it less sensitive to perturbations. You can do that
when you have unlimited computing power. It can even
anticipate things happening in advance because it has
more data available."
One example Schwinn shared how this extensive
amount of data and processing power can be used to
improve the performance and safety of a new-generation
autopilot is in capabilities like Avidyne's Envelope
Protection function.
"Basically, 99 percent of the autopilots that are flying
right now, if you put them in altitude and heading hold
and pull the throttle back to idle, they will hold the heading and altitude until the airplane stalls," he explained.
"At that point, they would have wound the trim all the
way to the stop and you would have a stalled and brutally

mistrimmed airplane. At that point, most of them (autopilots) would disengage.
"I don't think you can find a worse behavior than that
in terms of pilot friendliness and overall safety. Make
sure the airplane is in as bad a shape as possible then
give it up."
Schwinn said a new-generation autopilot would not
operate that way because it has so much more information
available about the aircraft's overall situation.
"If you reach that situation, we start to do things to mitigate what is happening and we do it very gently," he said.
"If you pull the power to idle, the speed will just bleed off
until you are just a handful of knots above the stall, and
then the autopilot will gently lower the nose almost imperceptibly, just to keep you at the safe speed. At the same
time, it will give you flashing lights and voice warnings.
"I've done a number of demo flights where I've taken
people up and said let's watch Envelope Protection - boring - and that's just the way it should be. The voice just

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48

avionics news

*

january

2014


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Avionics News January 2014

Table of Contents for the Digital Edition of Avionics News January 2014

Point of Communication
AEA Now
The View From Washington
International News and Regulatory Updates
The In Crowd
Member Profile
Sales and Service
A Conversation With...
Make Way for LCDs
Lithium Batteries 101
Member Profile
Autopilot Upgrades
Aviation Aces
NCATT Becomes Part of ASTM International
Essential Documentation
What Do Dealers Want?
Legal Ease
Business Basics
What's New
Marketplace Classifieds
Avionics News January 2014 - Intro
Avionics News January 2014 - Cover1
Avionics News January 2014 - Cover2
Avionics News January 2014 - 1
Avionics News January 2014 - 2
Avionics News January 2014 - 3
Avionics News January 2014 - Point of Communication
Avionics News January 2014 - 5
Avionics News January 2014 - AEA Now
Avionics News January 2014 - 7
Avionics News January 2014 - 8
Avionics News January 2014 - 9
Avionics News January 2014 - 10
Avionics News January 2014 - 11
Avionics News January 2014 - The View From Washington
Avionics News January 2014 - 13
Avionics News January 2014 - International News and Regulatory Updates
Avionics News January 2014 - 15
Avionics News January 2014 - 16
Avionics News January 2014 - 17
Avionics News January 2014 - The In Crowd
Avionics News January 2014 - 19
Avionics News January 2014 - 20
Avionics News January 2014 - 21
Avionics News January 2014 - Member Profile
Avionics News January 2014 - 23
Avionics News January 2014 - 24
Avionics News January 2014 - 25
Avionics News January 2014 - Sales and Service
Avionics News January 2014 - 27
Avionics News January 2014 - 28
Avionics News January 2014 - 29
Avionics News January 2014 - 30
Avionics News January 2014 - 31
Avionics News January 2014 - A Conversation With...
Avionics News January 2014 - 33
Avionics News January 2014 - Make Way for LCDs
Avionics News January 2014 - 35
Avionics News January 2014 - 36
Avionics News January 2014 - 37
Avionics News January 2014 - Lithium Batteries 101
Avionics News January 2014 - 39
Avionics News January 2014 - 40
Avionics News January 2014 - 41
Avionics News January 2014 - Member Profile
Avionics News January 2014 - 43
Avionics News January 2014 - 44
Avionics News January 2014 - 45
Avionics News January 2014 - Autopilot Upgrades
Avionics News January 2014 - 47
Avionics News January 2014 - 48
Avionics News January 2014 - 49
Avionics News January 2014 - 50
Avionics News January 2014 - 51
Avionics News January 2014 - Aviation Aces
Avionics News January 2014 - 53
Avionics News January 2014 - NCATT Becomes Part of ASTM International
Avionics News January 2014 - 55
Avionics News January 2014 - Essential Documentation
Avionics News January 2014 - 57
Avionics News January 2014 - What Do Dealers Want?
Avionics News January 2014 - 59
Avionics News January 2014 - Legal Ease
Avionics News January 2014 - 61
Avionics News January 2014 - Business Basics
Avionics News January 2014 - 63
Avionics News January 2014 - 64
Avionics News January 2014 - 65
Avionics News January 2014 - What's New
Avionics News January 2014 - 67
Avionics News January 2014 - 68
Avionics News January 2014 - 69
Avionics News January 2014 - Marketplace Classifieds
Avionics News January 2014 - 71
Avionics News January 2014 - 72
Avionics News January 2014 - Cover3
Avionics News January 2014 - Cover4
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