Deliveries of the first Sukhoi Superjet 100 medium-range passenger aircraft have been postponed indefinitely over test delays. The first test flight is planned for next month. Originally, the first Superjet 100 deliveries were to be made in late 2008. The Superjet 100 project is a family of medium-range passenger aircraft developed by the Sukhoi Design Bureau in cooperation with major American and European aviation corporations, including Boeing, Snecma, Thales, Messier Dowty, Liebherr Aerospace, and Honeywell. The company plans to manufacture at least 700 Superjet 100s, and intends to sell 35 per cent of them to North America, 25 per cent to Europe, 10 per cent to Latin America, and 7 per cent to Russia and China. To date, the company has secured 73 firm orders for the aircraft which carry a base list price of US$28 million. The market for the Superjet 100 is estimated at around US$100 billion for about 5,500 aircraft, through to 2023.