Back in the days when airliners had propellers and raucous, oil-spewing, avgas-guzzling radial engines, there was normally a third person on the flight deck.This was the flight engineer whose main job was to look after the engines — the very things that kept the aircraft airborne and moving forward — nursing them so they did not drink too much avgas (aviation gasoline), use too much oil or overheat and catch fire. In-flight fires are often catastrophic, especially when they occur in the proximity of a wing full of avgas.Flight engineers were the unsung heroes. Not for them the glory and adulation — or the pay, for that matter — heaped upon the Ray-Ban-wearing pilots, but instead frown lines and nervous tics, and a world view of quivering gauges. Temperature. RPM. Manifold pressure. Alarms. Fire warnings.About eight minutes into watching episode 2 of Zooming with the Zumas on YouTube, my attention drifted to the right hand side of the screen where the other videos are: Im cockpit de...

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