Avionics News February 2012 - 37

ity, these minimums can be relaxed to one mile and only 277 feet above the airport, in large part because of an RNP feature called radius-tofix, which enables the airplane to precisely fly a curved approach path designed to avoid high terrain. Even where terrain is not an issue, airspace complexity can be an issue. An RNP approach procedure at Chicago Midway makes it possible for operators to access runway 13C using a route arriving from the southwest, which can simplify arrivals when other approaches would conflict with traffic from nearby O’Hare International. Note that RNP does not specify a particular nav-aid type or method to meet the performance goal. As a practical matter, it’s usually GPS, but high-end systems also use inertial navigation and distance measuring equipment. Airlines and top-end executive jets typically have multiple navigation sources plugged into a flight management computer, which will be connected to the aircraft flight director and autopilot. Indeed, this setup – with all key navigation devices duplicated for redundancy – is part, but not all, of what is required for FAA authorization to fly current RNP-AR approaches. Authorization Required (AR) Beyond the required avionics, authorization requires a sign-off from the aircraft manufacturer that it is capable of RNP operations, FAA validation of both the flight manageContinued on following page

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SW-3, 15 DEC 2011 to 12 JAN 2012

SW-3, 15 DEC 2011 to 12 JAN 2012



Table of Contents for the Digital Edition of Avionics News February 2012

Point of Communication
AEA Now
The View From Washington
International News and Regulatory Updates
Help for See-and-Avoid Aviating
Member Profile
Demonstrated Ability
Before & After
Retrofitting for RNP
A Conversation With...
What Will Economic Recovery Look Like?
Meet the AEA Staff
Member Profile
Look Mom, No Hands!
Business Basics
Pro-to-col
Theory & Practice
Special Report
What's New
Marketplace Classifies
Avionics News February 2012 - Cover1
Avionics News February 2012 - Cover2
Avionics News February 2012 - 1
Avionics News February 2012 - 2
Avionics News February 2012 - 3
Avionics News February 2012 - Point of Communication
Avionics News February 2012 - 5
Avionics News February 2012 - AEA Now
Avionics News February 2012 - 7
Avionics News February 2012 - 8
Avionics News February 2012 - 9
Avionics News February 2012 - 10
Avionics News February 2012 - 11
Avionics News February 2012 - 12
Avionics News February 2012 - 13
Avionics News February 2012 - 14
Avionics News February 2012 - 15
Avionics News February 2012 - The View From Washington
Avionics News February 2012 - 17
Avionics News February 2012 - International News and Regulatory Updates
Avionics News February 2012 - 19
Avionics News February 2012 - Help for See-and-Avoid Aviating
Avionics News February 2012 - 21
Avionics News February 2012 - 22
Avionics News February 2012 - 23
Avionics News February 2012 - 24
Avionics News February 2012 - 25
Avionics News February 2012 - Member Profile
Avionics News February 2012 - 27
Avionics News February 2012 - 28
Avionics News February 2012 - 29
Avionics News February 2012 - Demonstrated Ability
Avionics News February 2012 - 31
Avionics News February 2012 - 32
Avionics News February 2012 - 33
Avionics News February 2012 - Before & After
Avionics News February 2012 - 35
Avionics News February 2012 - Retrofitting for RNP
Avionics News February 2012 - 37
Avionics News February 2012 - 38
Avionics News February 2012 - 39
Avionics News February 2012 - A Conversation With...
Avionics News February 2012 - 41
Avionics News February 2012 - What Will Economic Recovery Look Like?
Avionics News February 2012 - 43
Avionics News February 2012 - 44
Avionics News February 2012 - 45
Avionics News February 2012 - 46
Avionics News February 2012 - 47
Avionics News February 2012 - Meet the AEA Staff
Avionics News February 2012 - 49
Avionics News February 2012 - 50
Avionics News February 2012 - 51
Avionics News February 2012 - Member Profile
Avionics News February 2012 - 53
Avionics News February 2012 - 54
Avionics News February 2012 - 55
Avionics News February 2012 - Look Mom, No Hands!
Avionics News February 2012 - 57
Avionics News February 2012 - 58
Avionics News February 2012 - 59
Avionics News February 2012 - Business Basics
Avionics News February 2012 - 61
Avionics News February 2012 - 62
Avionics News February 2012 - 63
Avionics News February 2012 - Pro-to-col
Avionics News February 2012 - 65
Avionics News February 2012 - 66
Avionics News February 2012 - 67
Avionics News February 2012 - Theory & Practice
Avionics News February 2012 - 69
Avionics News February 2012 - Special Report
Avionics News February 2012 - 71
Avionics News February 2012 - 72
Avionics News February 2012 - 73
Avionics News February 2012 - What's New
Avionics News February 2012 - 75
Avionics News February 2012 - 76
Avionics News February 2012 - 77
Avionics News February 2012 - Marketplace Classifies
Avionics News February 2012 - 79
Avionics News February 2012 - 80
Avionics News February 2012 - Cover3
Avionics News February 2012 - Cover4
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