A monoplane called the S-2 Kite was developed in 1931. Designed by Omer Woodson, it was a probe into the inexpensive, ultralight aircraft market.
It had an uncovered, girder-like fuselage, and thick, cantilever wing. One was built, NX489M c/n 1002.
Simplex failed to get anywhere with the project, but the idea went with Woodson and company test pilot Myhres when they left in 1930 to form Cycloplane Co.
Sioux Aircraft Corporation built aircraft under the name Sioux Kite.
S-2 Kite
Engine: Szekely SR-3, 40hp
Seats: 1