I know this does not have much to do with automobiles, but I have heard that cell phones are not allowed to be used during the flight because they might interfere with the navigation equipment. Is this so?
No! They are banned because they might disrupt cell service on the ground. The cellular system is designed to handle calls from ground based surface that are traveling at slow speeds. When operating a cell phone, your call is being routed up to four cell towers at a time. So when your calling from high speeds from the air, hundreds of towers simultaneously are trying to route your call which can play havoc on the cell system and overload the cell network, which can result in dropping calls from people who are on the ground. As a result of this the Fcc has ruled that the airlines ban cell phone use while the plane is in flight.
