After completion of the initial flight test program, the Lorraine engine was replaced by a 500 hp Hispano-Suiza 12Mc twelve-cylinder V-engine with which it was tested at Istres, France, during the first quarter of 1931. It then returned to Romania, where, on December 9, 1931, the CV-11 made an attempt on the 310.7 mls (500 km) closed-circuit speed record. However, an engine failure necessitated a forced landing in which the pilot, Captain Romeo Popescu, was killed. The following data relate to the Hispano-Suiza-engined CV-11.
Span: 37 ft 8.75 in (11.50 m)
Length: 22 ft 10.875 in (6.98 m)
Height: 8 ft 0.75 in (2.46 m)
Wing area: 195.9 sq.ft (18.20 sq.m)
Empty weight: 2,425 lb (1,100 kg)
Loaded weight: 3,329 lb (1,510 kg)
Max speed: 204 mph (329 kmh) at 16,405 ft (5,000 m)
Climb: to 16,405 ft (5,000 m)."