2 or 2.5 nm.
I do understand that aircraft work distances in Nautical Miles and Knots …
( Time all that Quaint Victorian BS was brought into the 21st century and start using Metres + Km / hour )
However, yer average Joe Dronie on the ground is going to be confused by Nautical Miles …
This is a deliberate Gotcha by whoever put together the Drone Code here.
We actually want Metres.
Here is Bournemouth Airport.
Green = 2 nm = 2.3 Miles = 3700 Metres.
Yellow = 2.5 nm = 2.88 Miles = 4630 Metres.
red = 5 Km = 3.2 miles = 5000 Metres.
Assuming measurements from the centre of the main runway.
When measured from both ends of the runway(s), things get even more complicated.
How confusing is all that ?
At least I can still fly along Bournemouth beach
Why don’t the Dumb-Ass authorities just draw a circle limit around every airport, print the circle on a map, and publish that ?
Then every Joe Dronie can look on the map and know exactly where he can fly from outside of the circle.