3 $begingroup$ Gliders are a little bit of a Specific circumstance. Activity gliders normally fly in shut proximity, and so have a greater-than-ordinary probability of mid-air collision. They're also easier to exit from. $endgroup$ DJClayworth Parachuting isn't usually restricted to daytime hours; expert skydivers sometimes carry out night jumps. For https://skydivinggearequipment.com/