Essentially a slightly scaled-up two-seat derivative of the I-3, the DI-2 was powered by a similar 750hp BMW VI 7,3 engine and possessed a similar structure. Armament consisted of two synchronised 7.62mm machine guns and two guns of the same calibre on a Scarff ring in the rear cockpit. Flight testing of the DI-2 commenced in 1929, but early in the programme the horizontal tail separated in flight as a result of flutter and further development was discontinued.
Max take-off weight: 2122 kg / 4678 lb
Empty weight: 1557 kg / 3433 lb
Wingspan: 11.80 m / 39 ft 9 in
Length: 8.20 m / 27 ft 11 in
Wing area: 31.80 sq.m / 342.29 sq ft
Max. speed: 256 km/h / 159 mph
Range: 510 km / 317 miles