Disappointed because the 'Columbia' was not the first aircraft to accomplish the New York to Paris flight, Bellanca severed all relations with Levine, and started his own company, the Bellanca Aircraft Corporation of America, and rented facilities on Staten Island, NY. The new Bellanca model was designated the CH, and was basically a commercial version of the WB-2.
CH-200 Pacemaker First flown in 1928 CH-300 Pacemaker
CH-300
First flown in 1929 CH.300 six-seat Iightpiane, Pacemaker six-seater of 1929 and flown 1931 on an 84-hour 33-minute world non-refueled endurance record.