This I-230 (D-01 after modifications) resembles the previous one, but with different camouflage scheme. The photo shows both the oil cooler flap (close to the wheel bay door) and the radiator outlet flap (close to the wing flaps).    New exhaust stacks are clearly visible here. The nose was reshaped, with different paneling and a sharper spinner. Again, we see both oil cooler flap and radiator flap, in the lowered position.