began in the spring of 1917 but was not satisfactory. The aircraft was difficult to land because of the pilot's difficulty to judge altitude due to the high position of the flight cabin. In addition, the flight controls were mushy due to the warping and flexing of the lightly built wings. One pilot, recalling flying it, called it "not an aircraft but a sickness".

Although aileron control was sluggish, both rudder and elevator control were considered satisfactory and the unconventional design of the fuselage appeared not to have a detrimental