Hydraulic brakes, and flying.
04-12-17, 08:22 AM
#26
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https://www.westjet.com/en-ca/travel...baggage/sports
04-12-17, 09:46 AM
#27
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Yes, the entire airplane is pressurized to the same pressure. It has nothing to do with the cargo or baggage, and everything to do with the aircraft's structure.
The airplane is a cylindrical pressure vessel, basically a light weight air tank. If there were a difference in pressure above and below the cabin floor, it wold buckle. Plus it would require that the floor is hermetically sealed o keep cabin pressure from venting down into the hold. So, think, one big air tank, that happens to have a floor stretching across the middle.
BTW - the above was proven in a a very unfortunate event when a cargo door failed, causing the cabin pressure to buckle the floor, leading to a crash.
As to hydraulic lines. If their bled properly there's no air inside to expand and push fluid out. Plus the total volume of fluid is too small to be of concern anyway, so don't sweat this bit of nonsense, and don't go out of your way to tell anyone you have hydraulics on the bike.
The airplane is a cylindrical pressure vessel, basically a light weight air tank. If there were a difference in pressure above and below the cabin floor, it wold buckle. Plus it would require that the floor is hermetically sealed o keep cabin pressure from venting down into the hold. So, think, one big air tank, that happens to have a floor stretching across the middle.
BTW - the above was proven in a a very unfortunate event when a cargo door failed, causing the cabin pressure to buckle the floor, leading to a crash.
As to hydraulic lines. If their bled properly there's no air inside to expand and push fluid out. Plus the total volume of fluid is too small to be of concern anyway, so don't sweat this bit of nonsense, and don't go out of your way to tell anyone you have hydraulics on the bike.
04-12-17, 09:53 AM
#28
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No problem, I was simply offering an alternate explanation other than worry about pets checked as cargo.
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Just because I'm tired of arguing, doesn't mean you're right.
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04-12-17, 10:03 AM
#29
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Airlines do not want any fluids that can leak onto other customers luggage.
And airlines do not like finding fluids that they can't identify. They do not know if it is hazardous. I have heard of haz mat crews being called out to clean up stuff that nobody knew was safe.
Also there are rules against traveling with flammable liquids. Brake fluid is not flammable but some brake fluids are classified as combustible. I have had experience with transportation personnel that are not trained in this stuff and did not know what the difference between flammable and combustible is, they think the are the same thing.
It is an over-abundance of caution, which sometimes is partly based on ignorance.
I do not have hydraulic brakes on a bike but I have Rohloff oil in my Rohloff hub. And no, I did not drain the oil out of the hub before flying. But it did leak some of the oil out of the hub in transit. But I will continue to fly with oil in the hub until they direct me otherwise.
Regarding the debate on pressurization, aircraft interior is pressurized but the pressure is less than the airport you took off from or landed at, pressurization is closer to equivalent to about 8,000 feet.
And airlines do not like finding fluids that they can't identify. They do not know if it is hazardous. I have heard of haz mat crews being called out to clean up stuff that nobody knew was safe.
Also there are rules against traveling with flammable liquids. Brake fluid is not flammable but some brake fluids are classified as combustible. I have had experience with transportation personnel that are not trained in this stuff and did not know what the difference between flammable and combustible is, they think the are the same thing.
It is an over-abundance of caution, which sometimes is partly based on ignorance.
I do not have hydraulic brakes on a bike but I have Rohloff oil in my Rohloff hub. And no, I did not drain the oil out of the hub before flying. But it did leak some of the oil out of the hub in transit. But I will continue to fly with oil in the hub until they direct me otherwise.
Regarding the debate on pressurization, aircraft interior is pressurized but the pressure is less than the airport you took off from or landed at, pressurization is closer to equivalent to about 8,000 feet.
Last edited by Tourist in MSN; 04-13-17 at 08:31 AM.
03-31-20, 12:28 PM
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Strange thing, I've flown with my MTB to many countries before and this time around I found my front brakes completely gone. I tried pumping the lever and it does manage to build some pressure but nothing like it should be and after a few min there is nothing again.
03-31-20, 04:36 PM
#31
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