(16 Mar 2016, 9:14 pm)NK53 TKT wrote Same, the airport ALX400 and Meridian did not have them fitted
Appreciate we are going off topic.
https://www.whatdotheyknow.com/request/s...ecker_buse
http://www.google.co.uk/url?q=http://www.../19312.pdf&sa=U&ved=0ahUKEwjb1fCzk8bLAhVFYJoKHbI6DP0QFggcMAM&usg=AFQjCNEi_Bv8wi-Tq8TJI8AJZGmxi0Bfsw