CARF Sukhoi SU-31 2.6m/2.75m 35% 180000CARF Sukhoi SU 31 2. 6m 2. 75m 35% 180000 For over a decade the SU 31 has earned the reputation of being one of the best and most successful aerobatic aircraft of all times. Besides the naked facts, some just love it because of its looks, some just because of the huge cowl housing a round engine. Our 3m SU 31 represents all these qualities and the new, smaller version is building right on this legacy. With 2. 75m wingspan this aircraft is just that