I'm guessing a few people on here are familiar with a product called a Parrot AR Drone. For those who aren't, it's a four prop drone which you can control with a smart phone or tablet which has a range of around 150ft. They're made from foam and seem pretty harmless.
I recently came across some details which allows you to modify the drone to have a range of around 1500 meters and some photographs like this:
[800 x 600 max. size, please]
https://fbcdn-sphotos-d-a.akamaihd.n...21020820_o.jpg
This got me wondering; what are the regulations regarding radio controlled aircraft like this? An unmodified AR Drone seems pretty harmless as it's made from foam and has limited range, but I've come across some which are far more substantial in construction and seem to have a far greater range.
I know the likelihood is probably pretty small, but having a collision with something like this seems like it could cause a fair bit of damage to a light aircraft. Surely it's not that good an idea to be flying these things around at great height?