Currently, the RIN runs an annual general aviation competition called TopNav, uisng a route designed to take about 100 minutes. It is open to all types, including all microlights, helicopters, autogyros and SLMG/TNGs, with a minimum of 2 crew members. Lunch and refreshments are included and landing fees are waived.
The competition is run at two locations - TopNav North at Retford, and TopNav South at White Waltham.