is this a feature the hull has to have built in, or is it something you can modify or add to the hull?

Can be modified, perhaps Jan can chime in.</p>

</p>

You can make your own flood chamber, I'm just new to it also so I would like some tips too. I've got a micro Hopf Mono coming soon and it would be nice to do also.</p>

Ray : Which Hopf hull did you buy ?  I've build a lot of floodchambers in hulls, including Hopf hulls.</p>

Maybe I can give you guys some tips.</p>

http://www.rcgroups.com/forums/showthread.php?t=1006894

In addition to that; in a small hull, the position of the floodchamber wall can be critical in order to keep room for all the goodies that should fit inside.
Once you've determened the weight, nececary to make the hull flip back, take that weight in water.
Put the hull on it's side,support it so it stands stable, and pour the water in the hull.
With a marker you can mark the 'waterline' inside the hull and have the optimal position for the floodchamber wall.

Proceed as describes in the link by making a template.

Another way is to make a template out Depron, position it in the hull and laminate it in position with glasscloth and epoxy resin.
Let it cure thouroughly, preferably in a warm environment.
Cut the hole in the transom and scratch out the Depron.
Use a slosh of Acetone to (quickly) wash out the remaining Depron (that's the reason the epoxy has to be cured 100%, or the Acetone will deform it).

Regards, Jan.<br type="_moz"/>

I seem to have some kind of a problem; I can’t use the reply button and tne edit function also doesn’t work…(can’t fix my typo’s…)
I’ve reported it to the forum authorities.

I posted this mesage by typing it in Word and copy and paste it in the quick reply section..., odd)

Regards, Jan.
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Nice</p>

Thanks Jan</p>

Those may be out of my rhelm of building skills Im afraid</p>

But I guess i need to decide whats easier, buying a retrieval boat, or builing in a righting kit lol</p>

thanks again</p>

Build the Flood Chamber man, when I did the one on my ovalmaster 26 we spent a lot of time getting the balance right so the boat would self right in rough water etc, lots of bathtub testing haha!

once you have a self righting boat you can go to the pond and have a quick run without worrying if you will have to go for a swim or take a rescue boat...

If I ever get my je ski out of the shop, I think I'll just use it!  haha

Or you could go with the Velocity...it's self-righting out of the box (w/o a flood chamber).

I don't know 100% but, it's almost 18" long, stepped on the bottom and a typical looking deck. ? You can see I bought it in the rumrunner swap shop 2 weeks ago.