Double Bogey - I'm intrigued now - I take it you are saying that the heli-routes are exempt from the 500ft rule? I do know 'written permission' is required under the ANO for such exemption, as for air displays. I did not know helis were so exempt. Do you have a reference?
Just seen your post, ST - I therefore assume the AAIB will have a radar plot of PB's route?
Not sure why you keep mentioning minimum altitude?
Last edited by BOAC; 19th Jan 2013 at 07:28.