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HelicopterMain Discussion › TX as carry on luggage
10-19-2009 09:01 PM  8 years agoPost 41
ch-47c

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san jose, ca

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+1

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10-19-2009 09:57 PM  8 years agoPost 42
VooDooX

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San Francisco Bay Area CA, US (San Mateo)

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awwwwwww ch i liked your old post better then +1!

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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10-21-2009 09:29 AM  8 years agoPost 43
ch-47c

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san jose, ca

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[/quote]If you honestly thing that commercial airlines fly without fire protection in the hold, I think you are naive . . . .Actually, if there is a fire in the hold, the fire suppression system therein triggers, and unless it is something really ugly, the fire goes out . . . . the issue is what damage it may be able to do during the period before it is quenched . . .

If you honestly thing that commercial airlines fly without fire protection in the hold, I think you are naive . . . .[quote]

It depends on the airplane type the airline has in its fleet. Some have nothing. Some have smoke detection only and some have fire suppression. The fire suppression is mostly compartment containment and halon. You are just choking the fire by preventing oxygen to continue the combustion. Some airliners has pressurized cargo compartments and others don't. If it isn't pressurized, then it can get easily get below -50C and it's not unusal to see below-60C. The wings get so cold when they get refueled the bottom of the wing is coated with ice in the summer.

The problem with lipos is that whatever causes it to start to burn, you can't just switch it off. The reason they limit the amount of lithium per passenger or battery size, is the ability to deal with it in the cabin. There is also the gases they put off while burning. So while you think "I will breathe through the O2 mask when it drops down", nah because it is a diluter type. It dilutes the air in the cabin with O2, but now it is smokey air with O2. Its purpose is to keep you from going brain dead while the crew is trying to get the airplane down to an altitude where you can stay conscious. It is for a few minutes to get down.

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10-21-2009 04:30 PM  8 years agoPost 44
tadawson

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Lewisville, TX

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Keep in mind that Halon does *NOT* remove oxygen - it inhibits the combustion reaction. Halon 1311 is the most common for this, and in normal fire suppression concentrations, it is safe to be in the space with it when it discharges.

Considering that Halon is a reaction inhibiter to combustion, I really do wonder how well it would work on a Lipo fire - when I was working with it, Lipos didn't exist, so I honestly don't know . . .

Don't believe me? Go look it up - I did fire suppression systems for telco sites for years, all using 1311 . . . .

This is one of those myths about Halon that just plain needs to die . . .

- Tim

Friends don't let friends become electrotarded . . . .

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10-21-2009 06:07 PM  8 years agoPost 45
VooDooX

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San Francisco Bay Area CA, US (San Mateo)

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...

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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10-21-2009 08:13 PM  8 years agoPost 46
helidevil

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Brunswick, ME

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x
thats not true, first of all i wont even be flying with you. your acros the country from me and i have no plans of flying anywhere near where you live.
and seccond, i doubt you have any respect for people either!
now since you guys are SOOOOO worried about lipos and planes, ill change my ways of travelling.

happy?

Edit:

wonder where X's post went

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10-21-2009 08:47 PM  8 years agoPost 47
Evan D

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Charlotte, NC

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Not sure if I just got put into the "you guys" category but if you do travel alot and want to take your hobby with you you should contact the airlines and TSA about the rules. Don't ask here where you may or may not get the right information along with the opinions. Since doing the wrong thing can get your equipment confiscated and destroyed and put you in jail I would make sure the information you get is from a reputable source.

This is one of those life issues like driving a car and doing your taxes that you need to do correctly and not second guess the rules.

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10-22-2009 03:05 AM  8 years agoPost 48
ch-47c

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san jose, ca

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Keep in mind that Halon does *NOT* remove oxygen - it inhibits the combustion reaction. Halon 1311 is the most common for this, and in normal fire suppression concentrations, it is safe to be in the space with it when it discharges.
I didn't say that halon removes O2. Sometimes when explaining things on RR, it is easier to say things in simple English. When you put out cargo fires, you close off any openings to not allow any more O2 and discharge the agent from the appropriate bottle. This allows the atmosphere in the bin to have the desired level of halon to prevent combustion. After a period of time, we discharge a second bottle to maintain that level.
I know that halon inhibits the chemical reaction of the combustion process between the fuel, oxygen, and ignition. I don't know what the actual chemical process is as it it always explained in vague terms, so a good explantion would be appreciated.

I'm not familiar with Halon 1311, I've only been around 1211 and 1301 and have only put out fires with 1211.
now since you guys are SOOOOO worried about lipos and planes, ill change my ways of travelling.
Greyhound?

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10-22-2009 04:37 AM  8 years agoPost 49
tadawson

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Lewisville, TX

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No problem . . . you obviously have experience with Halon, so I apologize for the my redundancy. It's just when someone mentions "O2" in a Halon discussion, they almost always make the wrong assumption, so I am used to going into "education" mode. Halon, as you know, is basically only suitable for use in sealed spaces (well, flood systems at least) so I took your comment about sealing the space oddly, since in my mind, that is a given.

Oh, and I had a fingercheck - it's 1301 that I used to design. 1211 is more toxic than 1301 - pretty much along the lines of CO2, and is mainly used in handhelds as opposed to flood systems.

- Tim

Friends don't let friends become electrotarded . . . .

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10-22-2009 07:01 AM  8 years agoPost 50
ch-47c

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san jose, ca

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No problem. I try to shorthen things and I don't always get it across properly and end up misunderstood.

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10-22-2009 08:00 PM  8 years agoPost 51
helidevil

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Brunswick, ME

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Greyhound?
no, carry on lipos, DUH!

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HelicopterMain Discussion › TX as carry on luggage
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