Antoine Boisellier in the core. Photo: Antoine Boisellier

In issue 146: Hang Gliding World Championships
Spot the glider... paragliding in Greenland. Photo: Gemma Woldendorp and Natasha Sebire

In issue 146: Sound of Silence
Day something, somewhere in the California Sierras. Photo: Jody MacDonald

In issue 146: Sierra Surfing
The Boomerang 9 in Switzerland. Photo: Adrian Hachen

In issue 146: Boomerang 9, Delta 2, EN Bs
Horacio Llorens in Guatemala. Photo: John Stapels, Red Bull Content Pool

In issue 146: Horacio Llorens
The Advance Pi. Photo: Advance

In issue 146: Advance Pi reviewed
Daniel Gravier, at home in Aberdeen. Photo: Daniel Gravier

In issue 146: Far from help
Gliders at the Superfinal in Colombia. Photo: Federico Rios

In issue 146: Yassen Savov On Fire
Competition gliders at the PWC in Sun Valley, Idaho. Photo: Nick Greece

CIVL Votes for new Competition Class from 2015
How clouds form, from the Met Office

Video: How Clouds Form