Avionics News October 2012 - 48
AUTOPILOT UPGRADES
Continued from page 47
You want to know this before you get deep into the installation.” Elliott Aviation’s Mark Wilken
agreed that pre-quote homework is essential. “Before the quote, you need to understand what autopilot models are approved for the airplane, which requires checking STCs and
looking at caveats,” Wilken said. “In some cases, even for approved model numbers, specific serial number ranges may require airframe modifications. Also, check for outstanding items like service bulletins that may have to be dealt with before making a quote. From the autopilot side of things, you will probably remove existing wiring and brackets in an upgrade. Using old parts is just asking for trouble. You may wind up with exactly the same problems that led the customer to ask for an upgrade.” Weber agreed that electrical system issues can be a problem. “We’ve got a Cherokee in here right now, and someone installed a strobe in the belly where the servo needs to go, so we’ve got to take care of that first,” Weber said. “A lot of older airplanes have modifications that can cause problems. Frequently, when we do a retrofit, we sell the owner on removing abandoned equipment and old wiring. We have to open the airplane completely to do the installation anyway. That eliminates the risk of shorts, simplifies troubleshooting later, and the owner gets additional useful load.” Avidyne’s Aaron Hall added that his company’s DFC-90, designed to replace other autopilots, has some special requirements that need to be addressed during initial inspection. “A digital system like ours won’t tolerate systems being out of limit,” Hall said. “Look at the rigging of the flight controls.
Continued on page 50
48
avionics news
•
october
2012
http://aeromach.com
Avionics News October 2012
Table of Contents for the Digital Edition of Avionics News October 2012
Point of Communication
AEA Now
The View From Washington
International News and Regulatory Updates
Lightning Detection & Datalink
Member Profile
Cockpit Innovations
Member Profile
A Conversation With...
Understanding Autopilot Upgrades
Before & After
Member Profile
Pro-to-col
Business Basics
Theory & Practice
What's New
Marketplace Classifieds
Avionics News October 2012 - Intro
Avionics News October 2012 - Cover1
Avionics News October 2012 - Cover2
Avionics News October 2012 - 1
Avionics News October 2012 - 2
Avionics News October 2012 - 3
Avionics News October 2012 - Point of Communication
Avionics News October 2012 - 5
Avionics News October 2012 - AEA Now
Avionics News October 2012 - 7
Avionics News October 2012 - 8
Avionics News October 2012 - 9
Avionics News October 2012 - 10
Avionics News October 2012 - 11
Avionics News October 2012 - 12
Avionics News October 2012 - 13
Avionics News October 2012 - The View From Washington
Avionics News October 2012 - 15
Avionics News October 2012 - International News and Regulatory Updates
Avionics News October 2012 - 17
Avionics News October 2012 - 18
Avionics News October 2012 - 19
Avionics News October 2012 - Lightning Detection & Datalink
Avionics News October 2012 - 21
Avionics News October 2012 - 22
Avionics News October 2012 - 23
Avionics News October 2012 - 24
Avionics News October 2012 - 25
Avionics News October 2012 - 26
Avionics News October 2012 - 27
Avionics News October 2012 - Member Profile
Avionics News October 2012 - 29
Avionics News October 2012 - 30
Avionics News October 2012 - 31
Avionics News October 2012 - Cockpit Innovations
Avionics News October 2012 - 33
Avionics News October 2012 - 34
Avionics News October 2012 - 35
Avionics News October 2012 - 36
Avionics News October 2012 - 37
Avionics News October 2012 - 38
Avionics News October 2012 - 39
Avionics News October 2012 - Member Profile
Avionics News October 2012 - 41
Avionics News October 2012 - 42
Avionics News October 2012 - 43
Avionics News October 2012 - A Conversation With...
Avionics News October 2012 - 45
Avionics News October 2012 - Understanding Autopilot Upgrades
Avionics News October 2012 - 47
Avionics News October 2012 - 48
Avionics News October 2012 - 49
Avionics News October 2012 - 50
Avionics News October 2012 - 51
Avionics News October 2012 - 52
Avionics News October 2012 - 53
Avionics News October 2012 - 54
Avionics News October 2012 - 55
Avionics News October 2012 - Before & After
Avionics News October 2012 - 57
Avionics News October 2012 - Member Profile
Avionics News October 2012 - 59
Avionics News October 2012 - 60
Avionics News October 2012 - 61
Avionics News October 2012 - Pro-to-col
Avionics News October 2012 - 63
Avionics News October 2012 - 64
Avionics News October 2012 - 65
Avionics News October 2012 - Business Basics
Avionics News October 2012 - 67
Avionics News October 2012 - 68
Avionics News October 2012 - 69
Avionics News October 2012 - Theory & Practice
Avionics News October 2012 - 71
Avionics News October 2012 - 72
Avionics News October 2012 - 73
Avionics News October 2012 - What's New
Avionics News October 2012 - 75
Avionics News October 2012 - 76
Avionics News October 2012 - 77
Avionics News October 2012 - Marketplace Classifieds
Avionics News October 2012 - 79
Avionics News October 2012 - 80
Avionics News October 2012 - Cover3
Avionics News October 2012 - Cover4
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