Aksaray Travel on The war generated jet engines. Boeing led the way with the B-47 and B-52, fuel guzzlers unacceptable to airline executives who did not want to lose money just for greater speed. Juan Trippe disagreed as usual. Pan Am’s lead forced the other lines to order jets to remain competitive. But 1950s jets were too fast, as proved by the 1956 collision over the Grand Canyon that killed 128 people. The government stepped in, funding radar and navigational aids that made air travel much safer, even at jet speed. During the 1960s, jets, fast and comfortable, began to dominate the market. Aksaray Travel 2016.