Sukhoi Superjet 100 increase the cabin density from 93 to 108 seats by reducing the pitch from . Interjet claims its capital cost for 10 Superjets is equivalent to the pre-delivery payment for one Airbus A320. The pre-delivery payment amounts to 15-30% of an aircraft list price. An A320 list price was $88.3M in 2012. By then, Brussels Airlines was seeking alternatives for its four SSJ100s wet-leased from CityJet until March 2019, as teething problems affected their reliability. In October 2018, Sukhoi and engine contractor UEC agreed a plan, backed by the Russian government, to focus on customer support rather than deliveries in
Sukhoi Su-30MKK Mach 0.9, and this problem was completely solved on Su-30MKK by adopting new measures. According to the Sukhoi Design Bureau, Su-30MKK is the first of the Flanker family to achieve it after Su-35 / 37 (Flanker-E/F) and Sukhoi Su-30MKI. Higher percentage of composite material is used for Su-30MKK in comparison to the original Su-30MK. In addition, new aluminum alloy were used to replace the old type used on Su-30MK for weight reduction. The twin rudders mainly made of carbon fiber composite material were larger on Su-30MKK in comparison to that of the original Su-30MK, but contrary to what was once