We've all been strapped in as 'self loading cargo' when the little sign and often the flight attendants tell us to "Turn off your cell phones, laptops, etc", so is that warranted?
I have often wondered this as well for in the corporate flying I've done, we have the sat telephones and those laptops are ubiquiteous as -- well-- "cleared to".
So, there recently appeared an article in Aviation Week & Space Technology
mag (April 10th)- written by; Strauss,Apt, Morgan, Stancil- where the topic was discussed and these highlights were brought to fore:
* VORs have often been noted to have been adversely affected
* ILS adversely affected - 17 reports
* Radar altimeters - 10 times
* Autopilot- 8 times
* Ground Proximity Systems- 7 times
* Engine fuel controller- once.
Some of those situations noted were repeatable by togggling the offending instrument on and off and noting the deviations in instruments & other functions.
The worthy and informative article goes on to propose new tools, techniques, and the need for furthewr study and documentation of these potentially dangerous kinds of interferrences.
CAVU, lt-Mod chop.