Nok Air (DD, Bangkok Don Mueang) has placed a firm order with Bombardier Aerospace (BBA, Montréal Trudeau) for two DHC-8-400 NextGen turboprops with options for an additional two as well as purchase rights on four others. The Canadian aircraft manufacturer also confirmed that Nok Air will be the launch customer for a new extra capacity seating option, which will allow the Q400 NextGen aircraft to accommodate up to 86 passengers. Based on the list price of the Q400 NextGen airliner, the firm order is valued at approximately USD63million which could rise to USD258million should Nok Air exercise its options and purchase rights.