Routine Flight the TCA purchase of the British-built Vickers Viscount turboprop-powered airliner, the Winnipeg base is also in the midst of introducing jet engine technology for its engineering staff and technicians. TCA is the first North American carrier to use turboprop aircraft and air crews are also working up procedures to introduce the new airliner. The first Viscount is carrying out orientation flights for ground and air crews and the "On the Spot" crew are invited to come aboard on a test flight. The "On The Spot" series debuted in 1953, with the 39 episodes, initially 15 minutes in length. For the
Kuznetsov NK-12 the NK-12MA. The NK-12 remains the most powerful turboprop engine to enter service although the Progress D-27 and Europrop TP400 have come close to this (in 1982 and 2005 respectively). Another engine of similar size, the Pratt & Whitney T57 with 15,000 shp and 5,000 lb jet thrust, ran 3,100 hours before being cancelled in 1957. The NK-12 powers the Tupolev Tu-95 bomber and its derivatives such as the Tu-142 maritime patrol aircraft and the Tupolev Tu-114 airliner (with NK-12MV), which still holds the title of the world's fastest propeller-driven aircraft despite being retired from service in 1991. It also