The US Navy plans to buy or lease two Pilatus PC-9 turboprop trainers, "or equivalent aircraft", to use as chase aircraft for the Bell Boeing V-22 Osprey tilt-rotor flight-test programme. The aircraft will be required for five years beginning in April 1997. The Navy is calling for a level-flight speed range of 110-260kt (200-480km/h), with a dive speed of at least 280kt.
Source: Flight International