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Homemade sled for variable weight

Thread Status: Hello , There was no answer in this thread for more than 60 days.
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Well-Known Member
Nov 13, 2004
me and a group of friends would like to practice variable weight (just as a training before trying the same depth in constant ballast) with something more "professional" than just some weight attached to a rope (which we used up to now). We feel ready to build our first "homemade sled" :)
Any suggestion for the design? I thought to build something quite simple, like a "double t" (two orizontal pipes attached to a vertical one, with the cable sliding into the vertical pipe), but I have no idea how to limit the friction along the cable (I thought to use a metal cable).
Any help and suggestion will be greatly appreciated.

In my opinion, there can be only one type of sled for the "normal" diver like us: The "Fred Bulyle-version": easy to carry, but stably and with all necessary features like break etc.
A photo oft it you can watch at his homepage www.futurapnea.com => activities => equipment.
PS: With this sled he attempted the VB WR this year in Spetes, Greece.
Thanks for the link. Very interesting.

Any idea about how to bring it back to the surface? We want something easy enough to be carried by two people and mounted on a small boat. This will probably mean we cannot use any kind of engine except for a "human one" :)

You use a scuba-tank... the hose is attachted to a balloon and when you twist the knob, the air fills up the balloon and you go back up! :D I have used a system like this (pictured) and it is really small when you break it down... it is a lot of fun too! :D


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NL is really great fun that's right! :)

But I don' t think that the size oft your boat is very important for your sled.
I' m a friend of the Freshwater WR holder Benjamin Franz and often visited him training for VW / NL WRs in Austria. He also had only a relativly small boat (~4 m) with a little motor and one evening he told me that even the great UMBERTO PELIZZARI uses for training only a boat like him.


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