Is it ok to fly with CO2 cannisters?
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No. They'll make you remove them from whatever bag they are in. Take a pump or buy canisters in France.M.Rushton0
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Or pack them in your check-in luggage. The hold isn't pressurised.Ben
Bikes: Donhou DSS4 Custom | Condor Italia RC | Gios Megalite | Dolan Preffisio | Giant Bowery '76
Instagram: https://www.instagram.com/ben_h_ppcc/
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# Gas cylinders. Deeply refrigerated flammable, non-flammable, and poisonous gases such as butane, oxygen, propane, and aqualung cylinders. Includes butane gas (eg for use with heated hair appliances) camping gas, and chef's blow torches.
The above is quoted from E-jet regs - I suspect the rules will be interpreted to suit.M.Rushton0 -
It is not clear cut. I flew on BA with life jackets containing CO2 cylinders. Their website said I could if I called to tell them first. I called and they were disinterested, so I just got the name of the person and kept a record and packed them in my case. Different airlines have different approaches.
Easyjet say no
http://www.easyjet.com/EN/Book/regulations.html#baggage
Ryanair allow lifejackets with 2 CO2 cyclinders
http://www.ryanair.com/en/questions/can ... lifejacket
and their prohibit items only excludes flammable gasses http://www.ryanair.com/en/questions/wha ... in-baggage
(funniest FAQ - can I bring a parachute? ).
BMI say no
http://www.flybmi.com/bmi/en-gb/flight- ... ation.aspx
BA Yes - small non-flam gas cylinders, restricted (in qualntity) - no notification required
http://www.britishairways.com/travel/ba ... blic/en_gb
Check with your airline, it may be fine in hold baggage0 -
It's BA, so should be ok.Restricted items needing no notification
The following list covers all items that may be carried on British Airways flights but are still restricted to specific limits on quantities or dimensions:
Non-flammable, non-toxic gas cylinders - e.g. for operation of mechanical limbsRich0 -
Ben6899 wrote:Or pack them in your check-in luggage. The hold isn't pressurised.0
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The main reason is that they don't like the noise of leaking gas in the hold - can't tell if its something wrong with the plane or something in someone's luggage.Make mine an Italian, with Campagnolo on the side..0
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Never heard that one before0
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Monty Dog wrote:The main reason is that they don't like the noise of leaking gas in the hold - can't tell if its something wrong with the plane or something in someone's luggage.
Take it from me mate, we wouldn't hear a bike innertube deflating if it was in the hold, nor a CO2 cannister of the size us roadies use............ , not unless it went with a bang!
PP
p.s. http://www.icao.int/anb/fls/dangerousgoods/TechnicalInstructions/ ICAO (International Civil Aviation Authority) is the regulatory authority overseing carriage of dangerous goods on passenger and cargo aircraft. You can purchase their Technical Instructions from the link, if you have deep pockets! Alternatively contact your airline and speak to their cargo department who will answer questions for you. If you just phone and get a 'help desk' operator they will probably give duff info. Carriage of dangerous goods is quite complex (understandably) and many inocuous household items are considered dangerous, because in a pressurised tube at 37,000ft they can cause problems, especially if they are not suitably packed or are able to come into contact with something else.........0 -
surely you'll do some damge to your tyres if you don't deflate them? as the external pressure drops with altitude the gauge pressure of the tyre increases (internal pressure - air overpressure). if you want to test this idea take an sealed empty bottle in the cabin with you, once you get to a cruising altitude open it and listen to the pressurised air inside escape, the hold isn't pressurised so the effect is greater... (IMHO)All hail the FSM and his noodly appendage!0
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hardly, it isn't a significant change and most people don't pump their tyres up to 160 psi.
for your reference tyre exploding with a decent tyre the rim fails first.0 -
The hold is pressurised.
It will probably be at about 0.8 bar, your average tyre may be at 6 bar at sea level (1 bar) at 0.8 bar the effective pressure in the tube would be 7.5 bar, well within the range that it will cope with.0 -
the hold isn't pressurised
Your theory is indeed correct though, but remember that there is a pressure differential; the cabin altitude (i.e. the pressure inside the pressurised parts of the aircraft) only rises to about 8000ft - which is the same as standing on top of an 8000' mountain. I am sure the Grand Tours climb up to altitudes such as this and I haven't seen any of they tyres exploding!
PP0 -
Yes, I have noticed the differential when looking at the barometer on my watch. I think .76 to .8 bar is the norm in your average airliner at altitude.0
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bicyclepirate wrote:surely you'll do some damge to your tyres if you don't deflate them? as the external pressure drops with altitude the gauge pressure of the tyre increases (internal pressure - air overpressure). if you want to test this idea take an sealed empty bottle in the cabin with you, once you get to a cruising altitude open it and listen to the pressurised air inside escape, the hold isn't pressurised so the effect is greater... (IMHO)
If the hold is pressurised the cabin floor has to be strong enough to support the weight of the passengers and seating. If it's not pressurised the cabin floor has to support the weight of passengers and seating plus the pressure exerted by the air in the cabin.
If the aircraft is flying at 9000m (air pressure ~30kPa), and the cabin is pressurised to 2700m (air pressure ~75kPa) you've got a pressure difference of 45kPa = 4.5 tonnes per square metre. Making the cabin floor strong enough to support that would have a significant impact on the ability to carry passengers economically.
When I've taken an altimeter on board the cabin altitude has been about 2700m. Would you worry about your tyres bursting through the pressure difference if you rode up an alpine pass?0