The following article is based on information contained on the UK Airprox Boards's website, (see Further Reading).
Lessons Identified
About 10% of all UK Airprox are glider-related – that’s about 20 incidents a year. Almost all occur in Class G airspace, which is of course for everyone to use. In such airspace, “see and avoid” is the primary means of collision avoidance. Modern gliders can be very difficult to see so a better understanding of where gliders may be found should assist everyone to choose routes and levels that minimise the chances of an encounter. The UK Airprox Board’s gliding specialist offers the following advice to pilots, drawn from Airprox.