The 1927 Aecherli Pfau 7 wood and canvas biplane training glider was designed by Hermann Aecherli and Willy Farner with the upper wing with semi-Warren truss bracing, and ‘bathtub’ cockpit.
The prime constructor was Aecherli Hermann of Fällanden. Only the one was built.
Wingspan: 8.20 m
Length: 4.6 m
Wing area: 15.2 sq.m
Empty weight: 50 kg
Max weight: 120 kg
Wing loading: 8 kg/sq.m
Best glide: 7.5
Seats: 1
All Aero 