The 1971 Siegrist RS1 Ilse was a four-place cabin high-wing monoplane, built by Rudolf Siegrist. Registered N3087, it first flew in June 1971.
Engine: 180hp Lycoming O-360
Wingspan: 28’0″
Length: 21’6″
Useful load: 907 lb
Max speed: 170 mph
Cruise: 150 mph
Stall: 73 mp h
Seats: 4
All Aero 