The plane, dubbed Superjet Stretch, will seat 115 passengers, while the baseline Superjet 100 has up to 110 seats. The model is seen as an interim solution in the development of the Superjet family until the 130-passenger capacity Superjet NG is developed by 2020.
Russia is planning to invest some 4.8 billion rubles ($143 million) over the next five years in additional research and development on its Superjet 100 passenger twinjet.
The Superjet 100 is a short-medium haul passenger aircraft developed by Sukhoi in cooperation with US and European aviation corporations, including Boeing, Snecma, Thales, Messier Dowty, Liebherr Aerospace and Honeywell.
Sukhoi has received over 200 orders for Superjet 100 airliners so far.