"The background at Willow Run that day was 707's with the tubular noise suppressor taking off and landing. Shucks, I missed the unsuppressed JT3's and water injected JT4s!" By Second Segment.

This statement actually brought back some interesting memories of when I worked at the Big airline in SFO and had experience on the JT3, JT4 and many later model PW engines.

Our 707 was ready to be pushed back from the gate when the hapless Flight engineer accidentally activated the dump on the water tanks and the flight was delayed while the tanks were replenished. This before CRM and I can just imagine the Captain to S/O conversation. At take off and well into the distance, the water wagons could be followed by the smoke and noise of those four engines. The romance of working on the line and servicing those beautiful gleaming birds convinced me to follow my dreams into the cockpit.

Thanks for the memories Second Segment. Perhaps you should explain that nomenclature and your background. It sounds interesting!