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About Dottie Norkus
Expertise
I can address questions concerning: airline pilot employment & entry level airline careers in the Unites States, women pilots, flight training, pilot certification, flight scholarships (mostly for women), aviation & airline safety topics, aviation accident investigation, air carrier accidents and airline operations.
***Please note, I cannot address flight training or career queries from outside the United States. If you are not in the USA, please direct your question to the message boards at www.PPRUNE.org as you can surely find an answer there. For those in India try http://www.indianpilots.com
Also, I cannot address questions about aero engineering degree programs/careers or aviation management careers.
Experience
U.S. Regional Airline Pilot. I have also had 15 years previous experience in airline ground operations, as well as a part 91 commercial skydive pilot and ferry pilot.
Organizations I belong to
I am a charter member of Women In Aviation International as well as the International Organization of Women Pilots: the Ninety Nines. I keep a database of flight scholarships for women (mostly SW USA) and mentor student pilots.
Education/Credentials
Embry Riddle Aeronautical University certificate in Aviation Safety/Accident investigation.
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You are here: Experts > Shopping > Air Travel > Aviation/Flying > Cellphones
Expert: Dottie Norkus - 8/28/2006
Question
I know that during takeoff and landing all electronic devices must be turned off. What if everyone on the plane used their cellphones during a takeoff or landing? Would it disrupt the planes avionics and cause it to crash?
Answer
"What if everyone on the plane used their cellphones during a takeoff or landing? Would it disrupt the planes avionics and cause it to crash?"
While the chances may be slim they will actually create interferance, the chance is still there. Cell phones have the potential to interfere with navigation/communication systems as they operate on a close frequency/wave length.
Phones transmitting near the 1700 Mhz range were found to have caused these incidents on aircraft:
-Slaved Compass froze or overshot actual magnetic bearing
-Needles on instruments (engine/aircraft & nav) appeared unstable
-Digital VOR bearing display showed errors of 5 degrees
-VOR to/From indicator reading was reversed
-VOR & ILS* course indicator errors with & without a failure flag
-Sensitivity of the localizer was reduced
-Background noise in the audio system
-False warnings of unsafe conditions such as smoke alarms in the baggage compartments
In visual conditions such disruptions may not be that big of a deal, in poor weather they could cause havoc. Flying close to the ground, in poor weather, is not the time you want to get false readings from aircraft instruments!
*For more info on what a VOR & ILS does, see:
http://en.wikipedia.org/wiki/VHF_omnidirectional_range
http://en.wikipedia.org/wiki/Instrument_Landing_System
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