Clough Circles Challenge

How many times have you flown at Clough Head on a nice buoyant day and “boated” around for an hour plus with no real plan. You’ve had a good days flying ...but...

Well here’s your chance to add some direction in life. The Clough Circles Challenge or C3

There are 15 cylinders (Circles) in a grid formation in front of Clough Head (see the Maps tab). Each cylinder is 400m radius. Simply fly as many cylinders as possible in numerical order in a single flight. (You must record at least one trackpoint inside each cylinder for it to count).

Send your igc file to Peter Askew. If you know his e-mail address, then you can send it to him directly. If you don't know his e-mail address then send him a message using this form and Pete will get in touch with you. Once Pete has checked the file, your score (the highest number achieved) will be posted on the leaderboard. If 2 or more people have the same score, then the most recent flight is highest.

The aims of this ongoing “challenge” are:

  1. Give folks a chance to work with waypoints and set tasks on their flight instruments
  2. Get comfortable with your vario/gps
  3. Fly a task... it’s good practice, if at some stage you want to compete
  4. Have a bit of fun.

This is more about challenging yourself, than out performing everyone else.

All due recognition should go to the Pennine Soaring Club for their Parlick Grid Challenge.


To download the file to your PC, right click on the icon and then use "Save Target As" or "Save Link As" (or similar). The kml and gpx file have been through a conversion from the WPT file.

Google Earth kml file ge
GPS Exchange Format (gpx) file1
CompeGPS Waypoint file (wpt) file2

Note that Google Earth tries to take the ground at the base of the cylinder into account. When you open the file, the cylinders look distorted. Go into zero tilt and it looks better

If you use Memory Map or similar you can import the waypoints using the GPX file. Unfortunately, this doesn't create the cylinders due to the limitation of the GPX format


Google Earth


Results So Far

Posn Pilot Wing Date Circles Achieved Score
1 Patrick Holmes Carrera + 15/05/2016 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 120
2 Peter Askew Ozone Swift 06/04/2015 1, 2, 3 6