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Current specifications for the fire- suppression system in each Class C compartment require a minimum initial concentration of 5 percent Halon throughout the compartment to suppress any combustion to controllable levels. Thereafter, the system must sustain a minimum concentration of 3 percent Halon for 60 min to prevent reignition or spreading of the combustion. For airplanes certified for extended-range twin-engine operations (ETOPS), the fire-suppression system must be able to sustain a 3 percent concentration of Halon within the compartment for a maximum of 180 min.
It is considered good practice to avoid all unnecessary exposure to Halon 1301, and to limit exposures to concentrations of 7 percent and below to 15 minutes. Exposure to Halon 1301 in the 5 to 7 percent range produces little, if any, noticeable effect. At levels between 7 and 10 percent, mild central nervous system effects such as dizziness and tingling in the extremities have been reported.
reply to post by championoftruth
The Japanese currently operate the most rugged and proven search and rescue flying boat. Even they wouldn't consider operating it in such an unpredictable area. The conditions are far too variable and the risks too great. That is why the Japanese sent their P-3 Orions rather than their flying boats and the Chinese sent their IL-76s rather than their flying boats.
See section on following link on rough water operations.
Flying Boat link
Japanese flying boats
if you are that scared you should never go near the water.i mean you might drown or get wet.
seriously the excuses are just ridiculous.i mean you have hundreds of boat in this DANGEROUS WEATHER there but for some strange reason a flying boat is so fragile it must stay in its hanger.
i mean as soon as you see a storm coming you take off.takes 30 seconds to be airborne.
so simple so easy.
Have you ever been on a boat in really open ocean? Flying planes would not be able to handle this area. Not sure why this is so tough to understand.
The ships they have searching here are much larger than a flying boat and are made for this type of open ocean. It isn't about just a storm coming, these flying boats are not made to motor around for any extended period of time and definitely could not handle the swells this area sees on a regular basis. What are they supposed to do....take off and land in between each swell? Because I guarantee the first swell that was at least the height of the wings would sink a flying boat as it would crash on top of the wing and pull the flying boat to a watery grave. The reason REAL boats can handle it is because they have no wings protruding to be caught by a wave or swell. They simply roll with the swell or turn into it. good luck doing that on a flying boat.
The idea is a bad one and will not happen.
so what you saying is that the entire southern indian ocean is a raging torrent day and night without a single instant of calmness?
which is totally ridiculous.
you are saying a seaplane cannot fly above the ocean just like a plane and when it spots debris it cannot land on the water to examine that debris because the entire ocean is a raging cataclysmic storm 24/7 and the pilot is blind and cannot see a flat calm ocean and will willy nilly into a raging 50 foot wave which appears instantly without warning.
i don't believe you.
its more likely you are just jealous of the idea and you feel compelled to tear it down for that reason because you did not think it yourself so you have to come up with spurious excuses.
how do you explain live pictures on tv reports showing a flat calm ocean surface with nary a gigantic humongous wave in sight?
Even the presenters hair did not move.
reply to post by championoftruth
My friend - it's clear that you have no understanding of the changeable nature and the sheer force of the open ocean. Especially the area being searched. The famed 'Roaring 40's.'
A seaplane is all well and good, but it could be happily sat on calm seas and then, within minutes, a serious swell brews up and it plummets into a trough. All the pilot would see would be a tower of water all around him and next thing - crash. One sunken seaplane.
There was a comment in one of your previous posts that made me chuckle - you comment that yachts and sailboats can go in this area. Yes - you are correct - that's because they are boats and designed differently to seaplanes - we work the waves in an intelligent manner, based on the type of boat you're sailing.
I'd love to head off down in that area on a yacht - it would be such a challenge. Then again, my two real ambitions in life would be to race in the Vendee Globe and do the Sydney - Hobart. Alas, I'm not a hot enough sailor for the former and my wife won't let me do the latter - says it's too dangerous.
Anyway, I suppose what I'm saying is that please - if you don't understand the ocean and its volatility and unpredictability, please don't comment upon it in a way that demonstrates ignorance of it's power.
It's like another world out there. A wonderful, awe-inspiring, terrifying, spiritual wilderness.
I don't mean any offence - if I could, I'd love to take you on a transatlantic rally and introduce to you mother nature.
Cadoedit on 27-3-2014 by cado angelus because: Pinot Noir
The unknown object discovered is now under inspection at MNDF Northern Area.
reply to post by Destinyone
It's either a Halon bottle, or a liquid oxygen bottle, probably from a B-1 that crashed a few years ago in the area. That has been in the water far too long to be from MH370.
reply to post by smurfy
I can't tell, looks to me as if the picture is marked which means we only see a part of the whole picture.
Looks like to me it's a titanium tank used in probably a satellite which fell out of orbit. The titanium is not going to show much in the way of burning from re entry but I bet if examined closely, they will see some scoring. That's what it looks like to me anyway. And, most sats are steered into the South Pacific, Indian oceans to end their careers.
Absolutely not Ti, and absolutely didn't fall out of orbit.
The part is certainly stainless steel, Ti has a distinctive color and the photos are of good enough quality for me to be able to tell the difference.
And I'd like to add this to the conversation, only a small handfull of "stainless" steels are actually rust proof. In fact, depending on which alloy of which series, some will rust in a heart beat, in the right environment.
The austinitic alloys, 300 series, have the best overall corrosion resistance with t304 being the go to stainless alloy. The martensitic alloys, the 400 series, have slightly better mechanical properties and can be hardened, stainless knives are made from a 400 series alloy because they have enough carbon to harden. But that extra carbon allows for corrosion, these steels will absolutley rust.
I dont know which alloy the fire bottles are made from, but I can tell you that unless it was T304 or
T316, the other alloys are too hard to work with , even a few days in the ocean would cause severe corrosion. Chloride corrosion is one of the main corrosion modes for most stainless steels.
Wouldn't being exposed to extreme heat prior to immersion in saltwater affect the rate of corrosion?
MH-370 carrying cargo of lithium-ion batteries