Thijs Postma - Poster - Convair 640 MartinairThe Convair 640 from Martinair is boarding. Where are you off to? The Convairliners became rather outdated with the introduction of the turboprop airliners. Martinair, as the first airline in Europe, converted a Convair 340 with two Rolls Royce Dart turboprop engines in 1966. This CV 640 aircraft served until 1971. This reproduction is the month of February of the Martinair Collection Calendar.