Dumb idea? Or worth talking about?

[Shooter]

After another boat went down last week I started thinking of simple ways of retrieving a sunk boat. How about a cavity in the boat that housed a fishing bobber and line (rolled up on a bobbin of some sort). The cavity would be covered by the main hatch. If the hatch was to let go, and the boat were to sink, the bobber would float to the top with a line attached to the boat.

[HangTheMan]

This actually is what's used on rc battle ships to retrieve them after they have sunk from a battle.. Usually a piece of the battleship's canopy or turret or something is a buoyant piece with string rolled up that floats to the surface when the battleship is sunk from the battle damage.

[Peter A]

You could have said cavity, but have a floating cover attatched to a line. If the cover were glued with a water soluble glue such as craft pva, it would after a while, release and float allowing retrieval. Maybe even a piece of regular office sellotape?
Not really such a dumb idea at all. Fairly cheap to make and put into a boat. Potentially one could make a small unit that could be installed in any hull?

[TRUCKPULL]

This was done many years ago: and it worked.
Small mixing cup attached to or recessed in to the deck or hatch.
Fishing line attached to the bottom of the cup all coiled up and attached to a bobber.
The bobber should be big enough that it rests in the cup with a dome out the top.
Glue the bobber in using a past mixture of powered creamer all around the edge.
When it is sunk ,the creamer dissolves, and up comes the bobber with the line attached to your boat.

Larry

[Doby]

Chip...how about just putting enough flotation in it??

[NativePaul]

If a boat submarines at high speed it can get stuck in the bottom no matter how much flotation is in it.

[ray schrauwen]

Ask Terry Davis about his Q-Sport and Jay Moffat's P-mono.... They stay down for quite some time, few come back...

If a boat submarines at high speed it can get stuck in the bottom no matter how much flotation is in it.

[Shooter]

Wow. Great feedback and great ideas. Had no idea that the battleships used this. I like the water dissolving adhesive concept.

[Doby]

Did your boat "sink", or did it "dive" and get stuck in the bottom of the pond?

"Sink" to me can be solved via flotation, something that is in control of the builder...."Dive" and get stuck would require something more elaborate.

[Spartanator]

Could get a real small reel (maybe a RC winch without the winch line....) and do the string and bobber.
It's cool and I do think it could save one!
Heck, could have a fail safe that is somehow wired to "deploy" the floater when it looses radio contact after X amount of time.

[flraptor07]

Here ya go!

this would be the ticket, you could build it into the boat somehow. it would be real easy.. http://www.waterbuoy.net/ "runzwithsizorz" posted it on another thread..

[pescador]

I've got one of these on my tug and one on the drone, when it gets 3ft deep it deploys a 100ft line.
It's meant for fishing rods.
http://www.amazon.com/GetterBack-Rec.../dp/B00GIYIU8Q


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[Shooter]

Exactly what I was looking for!!!! Thanks for sharing. A bit expensive, but well worth it for a $1000 boat!!!

[flraptor07]

Exactly what I was looking for!!!! Thanks for sharing. A bit expensive, but well worth it for a $1000 boat!!!

The one I posted is a buck cheaper and you can see it at night!

[pescador]

The one I posted is a buck cheaper and you can see it at night!

That's cool too it's only for 2.2 lbs. but I bet you could attach it to a longer line. I might try one out.