Two S-33 Messengers were built, the first in 1926 as a racing aircraft with a 60hp Wright Gale aircooled engine, the second in 1927 as a two-seat utility aircraft with a 60hp Lawrence. The racer was flown by Al Krapish, one of the company’s earliest employees and a passenger on the first unhappy flight of the S-29A. It spanned 9.75m and had a speed of 165km/h.
S-33 Messenger
Engine: 60hp Anzani
Wingspan (upper): 32’0″
Wingspan (lower): 20’0″
Useful load: 500 lb
Max speed: 115 mph
Stall: 35 mph
Ceiling: 15,000′
Seats: 1
All Aero 