The Grob G104 Speed Astir was a competition sailplane produced in Germany in the late 1970s as Grob's first design in the 15 metre class. Taking the G102 Astir design as a starting point the Speed Astir featured a new wing of narrower chord and different section a fin and rudder of reduced height capacity for 150 kg (330 lb) of water ballast and elastic flaps.
Made by Grob Aircraft.