Stewart1a
Please don’t insult well-intentioned honest people on this forum.In fact,it is quite possible that some people might think the same about you!

And on the Vulcan’s last ever pass at an airshow.Notice the ‘Farewell ‘message on the bomb-door

Here are a couple of photos of the Hawkins and Powers fleet
1 N9701F C-82A Ontos, March 2003
2 N9701F C-82 when in sevice with TWA ,taken at Orly late 60s/early 70s
3 N1365N ,the magnificent KC-97G taking off on a test flight March 2003
4 A line up of PBY4Y Privateers,N2872G nearest March 2003

Back to the problems caused by mobile phones.I don’t know about the spark risk from mobile phones,but they DO cause radio interference problems.I work in Air Traffic at a major airport and mobile phones are not to be switched on in the ops.room because of the possible risk to radio transmissions.This is an instruction from our Tels.department so they should know what they are talking about!As you are no doubt aware ,mobile phones are not to be used on an aircraft and have to be switched off until inside the terminal building at major airports.There are several well documented reports of aircraft electronic instruments being affected by mobile phones
In my opinion the young lad at Flying Legends was doing his duty correctly as the flight line walk is extremely adjacent to the live aircraft.Also there are signs at the etrance to the Flight Line walk stating no smoking and no phones!

I agree that the 1992 Farnborough show was the last one worth going to.Here is a pic of the Yak-141