On 6 January 1909 this work was complete and testing continued, on this occasion with a number of streamers attached so that the airflow might be observed. More ground trials were made, the ailerons moved to a position in the middle of the aft interplane struts, and the radiators moved forward slightly to adjust the aircraft's trim. In this form Cody made another flight on 20 January covering about and reaching a height of but crashed after a turn, Cody being unhurt. The aircraft was again taken back to the factory for alterations and repairs. The ailerons were discarded and a pair of horizontal stabilisers were fitted in front of the rudder. Cody flew the aircraft again on 18 February, this time landing with no more damage than a burst tyre and a broken rigging wire. Further successful flights were made on 22 February, after which the rear stabilisers were removed and the ailerons repositioned, now being placed on short outriggers trailing from the forward interplane struts, and the front rudder was moved to a position above the elevator.