A 'stretched' turboprop is “definitely on [Bombardier’s] radar screen”, according to VP of sales and asset management Rob Sheridan, who was speaking at the International Society of Transport Aircraft Trading (ISTAT) Americas conference. However, he was reticent to say when this might be, noting a need for technological advancements. “It is something the market shows is needed when the technology is there,” he commented. Sheridan acknowledged that some people “do not want to get to the airport and see they'll be flying a small turboprop”, but added that seat capacity on existing turboprops is increasing. Bombardier can offer four to six extra seats on the Q400, which means it can be marketed as a dual-class aircraft, which allows airlines to grow passenger numbers on existing routes.