Catch up TV on Jumbo Jet. Watch the latest and all other episodes of Jumbo Jet now online, broadcasted on 7Two. Catch up on your favorite 7Two TV show: Jumbo Jet. Replay tv on its best! The 747 is the planet’s most recognisable airliner. But it is much more than just a big aeroplane. It’s a masterpiece of engineering that transformed our world and slashed the cost of air travel. In rare interviews, the chief engineer and his team describe the challenges they faced from exploding engines to vibrations that threatened to tear the airplane apart.