united airbus brake fans?
#11
Don't know about other carriers, but we used to use 'Home Depot' caliber fans on the ramp for cooling. Last year, the FAA and Airbus put an end to that. New fans had to be custom built to comply. So yeah, the weight savings is real but I don't imagine they cost as little as the 'Home Depot' variety.
#13
Banned
Joined APC: Jun 2008
Position: A320 Cap
Posts: 2,282
If I remember right (it's been awhile) it has to do with the flashpoint of hydraulic fluid and the way the lines are routed through the wheel well on the Airbus... not the ability to stop when they are hot
#14
You are correct. ECAM at 300... autoignition point of some hyd fluid is around 398 iirc.
#15
Gets Weekends Off
Joined APC: Apr 2011
Position: retired 767(dl)
Posts: 5,719
#16
Pilot Response
Joined APC: May 2011
Position: A320 Captain
Posts: 478
Was told years ago by a UA test/engineering pilot that it was a difference in design philosophies. Boeing has wheel well fire detection, Airbus doesn't but precisely monitors brake temps. FWIW
#19
Gets Weekends Off
Joined APC: Jan 2014
Position: A320 Left
Posts: 715
I don't recall the specifics. It required the airline to source fans built to Airbus specs. Off the shelf type fans apparently moved the air around the brakes in a way contrary to Airbus guidance. Sounds unreal, but it's true.
#20
Gets Weekends Off
Joined APC: Jan 2013
Position: Pitot heat, what's to eat?
Posts: 392
intermediate warm temperatures."
http://chihchin.sg1002.myweb.hinet.n...n%20brakes.pdf
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