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BigYellowTube-What Is It? (hooked Up To Plane)  
User currently offlineChe From United States of America, joined Feb 2000, 537 posts, RR: 0
Posted (15 years 2 weeks 4 days 18 hours ago) and read 6557 times:

What is the big yellow tube the ramp folks hook up to the plane when it pulls up to the gate? Air Conditioning?

3 replies: All unread, jump to last
User currently offlineScaredflyer21 From United States of America, joined Oct 2000, 355 posts, RR: 0
Reply 1, posted (15 years 2 weeks 4 days 18 hours ago) and read 6537 times:

I am pretty sure it is an a/c hose......but I'm not totally sure

User currently offlinePhilB From Ireland, joined May 1999, 2915 posts, RR: 12
Reply 2, posted (15 years 2 weeks 4 days 18 hours ago) and read 6524 times:

At more and more airports there are restrictions on running APUs which are vital for the running of air conditioning and electrical services on board.

Many now provide both pre-conditioned air and electrical hook ups using the airports own generation equipment and air conditioning plant - much of which is state of the art to be as energy efficient and emissions free as possible.

The airline pays for the hook up but saves on jet fuel and the environment on the ramp sees major reductions in carcinogenic particles, noise and dangerous effluxes.

User currently offlineL-188 From United States of America, joined Jul 1999, 30410 posts, RR: 57
Reply 3, posted (15 years 2 weeks 4 days 17 hours ago) and read 6505 times:

It it about a foot in diameter it is either a Hot air or Cooling A/C tube. What time of year will determine if it is hooked up to an Air conditioner or heater.

If it about 4 inches in diameter it is a high pressure line for providing starting air.

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