[PAR] [TLE] Pilatus PC-7 [SEP] The Pilatus PC-7 Turbo Trainer is a low-wing tandem-seat training aircraft, manufactured by Pilatus Aircraft of Switzerland.  The aircraft is capable of all basic training functions including aerobatics, instrument, tactical and night flying.  It has been selected by more than 20 air forces as their ab initio trainer.  Since the aircraft's introduction in 1978, close to 500 have been sold, with the majority still in service.  Over one million hours have been flown by PC-7s worldwide. [PAR] [TLE] Pilatus PC-9 [SEP] The Pilatus PC-9 is a single-engine, low-wing tandem-seat turboprop training aircraft manufactured by Pilatus Aircraft of Switzerland.  Designed as a more powerful evolution of the Pilatus PC-7, the PC-9's first flight was made in May 1984 after which certification was achieved in September 1985.  After this, the first production orders for the type were received from the Royal Saudi Air Force, with deliveries commencing in 1985.  Since then, more than 250 airframes have been produced across five different variants and the type is employed by a number of military and civilian operators around the world, including the Swiss Air Force, the Royal Australian Air Force, and the Royal Thai Air Force.
[PAR] [TLE] Pilatus PC-7 [ SEP ] The Pilatus PC-7 Turbo Trainer is a low - wing tandem - seat training aircraft , manufactured by Pilatus Aircraft of Switzerland . The aircraft is capable of all basic training functions including aerobatics , instrument , tactical and night flying . It has been selected by more than 20 air forces as their ab initio trainer . Since the aircraft 's introduction in 1978 , close to 500 have been sold , with the majority still in service . Over one million hours have been flown by PC-7s worldwide . [PAR] [TLE] Pilatus PC-9 [ SEP ] The Pilatus PC-9 is a single - engine , low - wing tandem - seat turboprop training aircraft manufactured by Pilatus Aircraft of Switzerland . Designed as a more powerful evolution of the Pilatus PC-7 , the PC-9 's first flight was made in May 1984 after which certification was achieved in September 1985 . After this , the first production orders for the type were received from the Royal Saudi Air Force , with deliveries commencing in 1985 . Since then , more than 250 airframes have been produced across five different variants and the type is employed by a number of military and civilian operators around the world , including the Swiss Air Force , the Royal Australian Air Force , and the Royal Thai Air Force .
The Pilatus PC-9 is a more powerful evolution of the plane that more than 20 air forces now use as their what?
The Pilatus PC-9 is a more powerful evolution of the plane that more than 20 air forces now use as their what ?
ab initio trainer
ab initio trainer