01 Jun 12
I was passing Bangkok International Airport on a bus, which was inundated with floods late last year to 2m deep.
There was still a 747 there, and I wondered why; as out of service must be costing a bomb. Then I thought of the damage to the wheels, brakes sensors and tyres. I further wondered how on earth do you change a tyre on one of these monstrous things - do you jack it up? What a weight must that be?
I decided to google it, purely out of interest, and got this:
http://www.cnngo.com/explorations/life/how-do-you-change-tire-airbus-a330-274379
Quite simple easy, but worth a quick read!
I never knew the tyres were pumped with Hydrogen, for reasons explained.
-m. 😉
01 Jun 12
Originally posted by mikelomwow the floods have dissapated..seems like only yesterday that you were a bit iffy there for a while, Mike.
I was passing Bangkok International Airport on a bus, which was inundated with floods late last year to 2m deep.
There was still a 747 there, and I wondered why; as out of service must be costing a bomb. Then I thought of the damage to the wheels, brakes sensors and tyres. I further wondered how on earth do you change a tyre on one of these monstrous thin ...[text shortened]... uick read!
I never knew the tyres were pumped with Hydrogen, for reasons explained.
-m. 😉
Glad to hear that it seems like things a getting back to normal.
And thanks for the story - thumbs up 😵
17 Jul 12
Originally posted by KewpieIn fact hydrogen would vanish from the tyre and would also cause damage to the material (gum).
er - shouldn't that be nitrogen?
Howver the reason given is wrong. They use nitrogen instead of ambient air, in which the water would be. Pure oxygen is dwonright dangerous and would cause an explosion with any organics (e.g. fat) present....
Another point is that you get nitrogen conveniently in pressure bottles, making the inflation of the tyre easy 😉
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17 Jul 12
1 edit
Originally posted by PonderableKnow-it-all.😠
In fact hydrogen would vanish from the tyre and would also cause damage to the material (gum).
Howver the reason given is wrong. They use nitrogen instead of ambient air, in which the water would be. Pure oxygen is dwonright dangerous and would cause an explosion with any organics (e.g. fat) present....
Another point is that you get nitrogen conveniently in pressure bottles, making the inflation of the tyre easy 😉
😏
17 Jul 12
Originally posted by mikelomThanks for that. Forewarned is forearmed. You just never know when one of those A330 tyres is going to get a puncture. I thought you just whip out your bicycle puncture repair kit. Now I know.
I was passing Bangkok International Airport on a bus, which was inundated with floods late last year to 2m deep.
There was still a 747 there, and I wondered why; as out of service must be costing a bomb. Then I thought of the damage to the wheels, brakes sensors and tyres. I further wondered how on earth do you change a tyre on one of these monstrous thin ...[text shortened]... uick read!
I never knew the tyres were pumped with Hydrogen, for reasons explained.
-m. 😉
- Joined
- 29 Dec 08
- Moves
- 6788
17 Jul 12
Originally posted by PonderableA third point is that they couldn't have meant "instead of oxygen" because oxygen, if pure, would have no moisture to condense. The must have meant instead of plain old compressed air, which would have some moisture. Besides, compressed N2 is inert and relatively cheap; O2 is a relatively expensive oxidant toward rubber at RT and toward everything at higher temps!!
In fact hydrogen would vanish from the tyre and would also cause damage to the material (gum).
Howver the reason given is wrong. They use nitrogen instead of ambient air, in which the water would be. Pure oxygen is dwonright dangerous and would cause an explosion with any organics (e.g. fat) present....
Another point is that you get nitrogen conveniently in pressure bottles, making the inflation of the tyre easy 😉
But it's cool anyway.