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Name: Iain Kennedy Email: iain999kennedy@btinternet.com
 
Country: Scotland  Date: 23 Apr 2008 10:09:38 GMT

Comment: I'd like to kick off by asking if anyone had an idea for a new place to keep a dive knife. I find that it's a piece of kit which is hardly ever used for the purpose it is intended, but by the same token, I'm too scared to leave it in the kit box (at least on purpose). I've tried it strapped on my lower leg - not bad, but a little awkward to reach. I've tried it upsidedown on my upper arm - more accessible, but makes my top half a bit busy. It needs to be in a place where it can be reached easily, doesn't interfere with other stuff and is at a low risk of puncturing the suit. I'm thinking of trying it on my weight belt to see how it goes and, if I can find a way to attach it, on my pony. Any other suggestions? Keep them clean please.



Name: Gordon Anderson Email: gordon.anderson@sky.com
Country: SCOTLAND  Date: 25 Apr 2008 07:33:54 GMT

Comment: How about in your BCD pocket. That's where I keep my knife. Its easy to reach & out the way so things don't get snagged on anything.



Name: Keith Waugh                                               Date: 25 Apr 2008 11:08:46 GMT
Country: SCOTLAND   

Comment: Why do we need a BCD? Odd question!? As most Divers use Drysuits and adjust Buoyancy within the suit, the BCD is, most of the time, surplus to requirements and a very expensive piece of kit. Wouldn't it be cheaper & less clutter to use a modified simple yachtsman's collar type Buoyancy Aid attached to your shoulder straps and fitted with a Dump valve & Breathing Tube/Air2 combination. You would still have emergency buoyancy or air supply when needed. Something for a Manufacturer to think about. What do you think?



Name: Iain Kennedy Email: iain999kennedy@btinternet.com
Welcome Page:   
Country: SCOTLAND  Date: 26 Apr 2008 10:23:42 GMT

Comment: Dive knives - The BC pocket is a good option. You don't mention whether or not your knife has a sharp point, a sheath or if it's one of the little line cutters with the rounded edges. Is it attached by a lanyard?



Name: Iain Kennedy Email: iain999kennedy@btinternet.com
Welcome Page:   
Country: SCOTLAND  Date: 26 Apr 2008 10:29:49 GMT

Comment: BCD - The yachtsman's life jacket would certainly give the bouyancy required for the job. The first problem might come when finning on the surface as the frontal bouyancy combined with the weight of the cylinder might tend to turn the swimmer on their backs, whether they liked it or not. This is one of the main functions of the yachtsman's life jacket. Some control would be needed when inflating the jacket and an over pressure valve fitted too. The main advantage of the BC is, I think, the integration of weight (cylinder) and bouyancy, allowing the swimmer to adopt either a face up or face down attitude as required. The success of the wing design improves on this feature by almost completely neutralising the weight/bouyancy differential. Maybe we are harking back to the days of the horse collar fenzy which had its own independant air source and could be connected to the cylinder also. I think the main advantage of the BC is in its integration of weight and bouyancy and its greater cago carrying capacity due to the large pockets and many D rings. Cost - The yachtsman's life jacket is not so robustly built as the average BC and is designed for "occasional" use i.e. it stays in its wrapping most of the time. Construction would have to be beefed up which adds to the price. Having said all that, I'm all for trial and experimenting with different things. Keep me posted.


Regarding changes to the SSAC Training Schedule:- The dropping of Shared Ascent on one Demand Valve, Iain Kennedy writes:-

"I was thinking about the proposed changes to the training syllabus regarding the notion of dropping the sharing of DVs. It strikes me that it may be easier to implement the blanket employment of pony cylinders or at least 2nd stage octopus regs in this country where peer pressure, club rules and even insurance policy protection can be closely monitored. However, in other countries, perhaps when on holiday, for example, it may be much more difficult to police.

Divers are often paired together on the basis of their ability and/or qualification. It may be all very well someone being qualified to Master Diver, say, and on that basis then being buddied with someone not hugely experienced. We might then have the situation where the "novice" has higher expectations of the master diver's abilities and training experience than he actually possesses, i.e. he has not practiced buddy breathing ascents during his training and they both find themselves diving with the centre's own regs which may or may not be fitted with an octopus.

I would be interested to see evidence that the risks involved in properly co-ordinated training events, employing buddy breathing, out-weighs the potential for incidents and accidents to occur where circumstances warrant it's use but when no-one has practiced the skill."

Anyone else got a view!? Don't be shy-have your say



 

Name: Keith Waugh Email: 
Welcome Page:   
Country:   IP Address:  78.148.88.251  Date: 18 Jun 2008 15:46:05 GMT

Comment: Here is a brilliant website: http://www.prowarm.com/ They manufacture/sell electrically heated Fleeces & Body Warmers. It appears that the Fleece has a low voltage heating element running through the back of the garment. The 5 position Battery pack is kept in the pocket. Temperatures are variable between roughly 40 degrees and 80 degrees centigrade. The rechargeable battery lasts between 3 hours and 7 hours. This could be a great garment for underneath a membrane Dry suit, if the battery pack can be operated through your Dry suit. It is certainly worth further investigation.



 

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