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Old 16 March 2009, 16:18   #31
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but firing hand held flares and smokes is about as hazardous as making a cup of tea.
thats what I used to think, well sommat like that, but an accident in the last couple of years saw an instructor have the base part of a hand held flare fire itself back at him and thru him did it not, resulting in large amounts of blood being needed in transfusions. New hand held flares having been redesigned as a result.
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Old 16 March 2009, 16:23   #32
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I'm sure most of you have seen it before but it did impress me the first time i saw it.
When a hand held flare is held burning underwater for a while and comes out still burning, pretty cool till you need to put it out in a hurry!
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Old 16 March 2009, 17:09   #33
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SeaSkills thread is very interesting

and to some extent all the chat about practice flares is a bit of a diversion.
We have sort of " been here before "........see......

http://www.ribworld.com/forum/showth...ghlight=Flares

I actually contacted a major British flare manufacturer to see if there might be any interest in producing " live practice flares " eg green parachute flares which only burnt for a short time , so leisure boaters could actually practice firing them off under controlled conditions . We had an interesting exchange of emails but they felt that there was simply not enough demand for such a specialized product.

( Now who do we know with an interest in both boating and pyrotechnics who might think differently ? )

Their attitude was that the British Leisure Boating Industry was unregulated so it was simply personal choice whether one bothered about carrying pyrotechnic flares or not . International shipping is regulated by SOLAS and flares are compulsory , so as far as they were concerned , flares would be around for the foreseeable future !

I did actually ask them if I could quote them directly , but they declined
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Old 16 March 2009, 17:45   #34
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i dont see why with modern chemicals that the expirery dates cannot be made longer to at least 5 years rather than around 3 ,and i dont see why hand helds cannot be set off on bonfire night in inland areas with care ,i know with the para ones they could still be burning and land on a house roof possibly setting fire to the plastic gutters ect ,
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Old 16 March 2009, 17:53   #35
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Not sure if it's the chemicals in question, or the packaging.

I suspect that the 3 year expiration has more to do with possible water ingress than breakdown or long term reaction of the chemicals.

That's just a guess, though.

jky
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Old 16 March 2009, 18:59   #36
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Not sure if it's the chemicals in question, or the packaging.

I suspect that the 3 year expiration has more to do with possible water ingress than breakdown or long term reaction of the chemicals.

That's just a guess, though.

jky
your probley right there ,we have set flares off some at least 20 years out of date and they still worked fine ,though a few burned a bit pinkish in colour rather than red or maroon,but they were kept in sealed containers and not spent most of there life rolling about in someones bilge .regards mart .
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Old 16 March 2009, 19:22   #37
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thats what I used to think, well sommat like that, but an accident in the last couple of years saw an instructor have the base part of a hand held flare fire itself back at him and thru him did it not, resulting in large amounts of blood being needed in transfusions. New hand held flares having been redesigned as a result.
It was a faulty new flare. I bet the ones from an old batch would have been much safer!!!
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Old 16 March 2009, 19:33   #38
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You presumably haven't been looking to spend 100+ on mountain bike lights in the last few months then.

so no flare has ever failed to trigger then?

ehhh ... i think you might have answered this one yourself ....
They may be very bright but they have a fairly narrow beam - just look at the size of them.

I have a pair of KC Daylighters - the old 150W sealed beam units. They are still the brightest light I have ever seen on a car. They give a wideangle beam and a hell of a range. The heat they give off is scary. If you turn one on it's side it will illuminate the whole of an electricity pylon - top to bottom - from about 500yds away.

As to setting off flares in old quarries you fire them horizontally silly - pref at an old car or whatever is dumped there...................
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Old 16 March 2009, 21:40   #39
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They may be very bright but they have a fairly narrow beam - just look at the size of them.

I have a pair of KC Daylighters - the old 150W sealed beam units. They are still the brightest light I have ever seen on a car. They give a wideangle beam and a hell of a range. The heat they give off is scary. If you turn one on it's side it will illuminate the whole of an electricity pylon - top to bottom - from about 500yds away.
you aren't comparing a normal car headlamp though...

the beam angle is most dependent on the optics not the light source - if you want a wide beam you can have a wide beam, if you want a narrow beam you can have a narrow beam. The benefit is the much reduced power requirement, you need a hell of a lot of AA's to run your KC Daylighters for any time! You could feasibly produce a very bright handheld electronic flare that would be like a red or white flare - it wouldn't be as brights as a flare though - but would last a lot longer than 1 minute and could be made to flash to attract attention.
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Old 17 March 2009, 05:04   #40
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Yes. But I think the "trigger" will be when MCA/MOD refuse to take TEP, and the manufacturer becomes obliged to take them back when buying new ones. That will put up the price of Flares, whilst at the same time electronic location aids will be coming down.
As was pointed out to me on another forum, this is very true and my statement about alternatives is not so sound after all.

PLBs are coming down, at around 150 quid they are comparable to a decent flare pack!
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