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lobstermanRe: Submarine
www.ussubs.com , occasionaly has some used research and tourist subs for sale. from various manufacturers.

i always thought a large scale ROV (big enough to tow a small support boat) , with several cameras, a grab arm, and a few MD coils at the leading edge, with the nozzle of an airlift or suction dredge under it, would be a neat set up for use on salvaging old wreck sites and prospecting deep rivers or lakes. and you could also pick up side work doing underwater bridge inspections and videos.
AK_Au_diverRe: Submarine
If you want a general purpose min-submarine, with much more depth and bottom time capability than Gary's sub, than look at the Deep Worker 2000 by Nuytco. Or their other similar 1-3 man, 1000 to 3000 foot depth, subs.


I toured their facilities in Vancouver BC; impressive toys. A person would need around $800k to buy one, plus a 60+ foot craft to be a support vessel.

It wouldn't be effective to use them as a production dredge; maybe testing and sampling.
Brian_BerkhahnRe: Submarine
Hey Peluk,
Thanks for answering some of the questions we have..

That sure is a cool machine.

lobstermanRe: Submarine
on second thought maybe the fella that built this rig could build me one to suck up all of the lobsters and crabs in the ocean :^)
lobstermanRe: Submarine
that is one cool looking rig, i think the concept might be something of interest to shipwreck hunters and salvagers.

i really would like to learn a lot more about it. did i read that there was another post about this somewhere?, does someone actually go down in it ?, or is it set up more as an ROV type thing tended from the surface by a boat or divers ?
pelukRe: Submarine
This is why I was going to stay clear of this as much as possible.I knew there'd be questions,but I'm in the last few weeks of mining season and I can't really get side tracked.I only see the crew from time to time in their final shakedown locations on the beach or parked up beside the road.I'll clear up what I can of questions when I am free and they are free.But anyway....

This is what I see from shore.The tower is out of the water.It is also the exhaust port.The pontoons are inflatable and deflatable.In the submerged attitude of the central tracked structure,the pontoons are partially deflated.The sub maneuvers about on the tracks and mining goes on.

It has the capability of floating to a distant location via the props.It can then submerge and the tracks will propel it.No anchoring would be necessary.

If an occasion came about while mining on the bottom,where the operator should have to exit,I believe it is done in this fashion.The top of the sub has a vertical, cylindrical chamber about 5-6'high.The operator would enter from the bottom and close the hatch behind.He would then flood the chamber and open the oerhead hatch and exit.On return,he would enter,close the overhead hatch and expell the water.At that point,he could open the hatch below and re-enter the sub.

Remember also,it is shallow in many mining locations they will be in.With the tracks on the bottom,the pontoons could still be inflated on the surface and mining could proceed with no need for anchoring.This will be certified when I next see them next.

Mr.Gustaffson at one point turned to me and said,"It can turn 360 degrees."This was out of the clear blue.It is probably an indication of how handy that feature has proved to be already.

Note also,if the operator ran into an obstruction such as a rise that he did not want to maneuver over by track,he could partially inflate and drift across via the props......but that's just me interjecting a supposition.I'll check that out as well.That would leave the craft subject to current momentarily which may be more of a nuisance than tolerable.
alienbogeyRe: Submarine
That thing is a submarine?

I'm sure confused about how it works......

I thought that the tracks under it were just for beach launching, but if it "climbed up over a submerged bar just offshore which may have been a 35 degree slope" does the tracked chassis stay on it the whole time and it just crawls around on the bottom?

If so, why would you need the flotation bladders on the sides and the propellor-motors? If it's crawling on the bottom the propellors won't do much good.

If it has enough flotation the propellors take over once the tracks are no longer engaged on the bottom - but in that case they need flooding and air tanks to adjust buoyancy like a regular submarine.

I had the thought that it crawls into the surf and releases from the tracks, but it sure seems like it would be a bugger to even find the tracks again in the murk, much less re-attach to them.

And, if it keeps the tracks but does free-float and maneuver via the motors, how does it keeps its position over a given location to dredge? I don't see any provision for anchoring - would it flood the buoyancy tanks and rest on the bottom with sufficient weight to hold position?

The operator could go out to clear a plug-up? If the thing is underwater he would have to flood the room he's in (after putting on the dive suit) - might be kind of hard on the electronics - unless there's another space he moves to which floods to allow egress?

So many questions from looking at the pictures.....it sure would be fun to get Captain Nemo over a few beers to ask him.
pelukRe: Submarine
Here's some more info on the sub in Nome.

I cme down to the center beach just as they were about to go back in the water.The reason it sits idle at times is because it is a "first".As such,it needs some adjustments and they are in the testing stages.They expect to be nmining shortly.
So,to answer to some questions,I spokje to one of the Gustaffson ("G Force")family on the beach.This man I have spoken to before and I mentioned the interest of the Forum members in his operation.

Question *1..."What does the "G Force" stand for?"
Answer..."G stands for Gustaffson.The "Force"is what drives us."

#2 "How do you get a clear view of the surface sitting in the bubble 6' away?"

Answer..."There is a camera mounted on the end of the nozzle and a screen inside for the operator to view.'

#3 "How many crew are required?"

Answer..."It's a one man operation and there is a diving suit inside if the operator needed to go out for maintenance."

I asked"You mean if he had to clear a plugup for example?"
Mr. gustaffson stated,"Yes,either the operator or another diver could clear it."

#4 "What kind of drive motor does it have?"

Answer..."It is a Cummins 400 Diesel."

As we talked the machine motored out into the water with the Cummins growling nicely.It climbed up over a submerged bar just offshore which may have been a 35 degree slope.I think the operator said,"I never even knew it was there.We just went right up and over it."

All sluicing and sorting is automatic.It has a centrifuge as well which was designed by gary Gustaffson, I believe.

That's about it at this point.This is movie material for sure.
tabwyoRe: Submarine
I see the bird banger on the mast. This is a snorkle rig. I could see an assist boat and a couple divers in the mix and well. So maybe a 20 foot dive with the heavy quipment on bottom already. Not sayin I'd invest in it but it would be cool beans to see it in action.
Brian_BerkhahnRe: Submarine
Sure does seem like alot of money just sitting there, I wonder what they plan on doing for a plug in the hose or when they need to move a boulder.

Anyone know who actually owns this true "subsurface dredge"?


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