The AT-401B is a 400-gallon workhorse powered by the Pratt & Whitney R-1340 radial engine.  It has all the rugged durability, safety features, clean aerodynamics and flying ease for which Air Tractor aircraft are famous – with the economical price of a piston engine plane.  The AT-401B delivers unsurpassed value – economically, efficiently and productively.  

AT-401B Specifications