TEOTWAWKI Boat

Just thinking--how do you flush the lavatory in a hydrofoil.

 

Prop is trashed and only had 13 hours on it. My bad.

 

You jiggle the handle Frosty.

 

What --- no buttons. Oh its 2012 and no buttons.

Or a switch perhaps.

 

Sorry to hear that Hoyt.

Opportunity for a change in pitch and/or diameter though!

 

Give it here Hoyt,--Ille hammer it out --be just like new.

Wanna bit more pitch --no problem!!!

 

NASA's solved this problem years ago - the main phone number is (202) 358-0000 - they'll direct you from there.

 

That's not good Hoyt! I don't know about the cavitation between your hulls with the motor but I understand that moving it forward or further to the rear will help. But, you probably already know that...

I do have a questions for ya, I don't recall seeing the displacement for your little cat, what will it carry and draft? I might try one very similar to yours at about 16' for a little river/lake cruiser....

Hey Frosty, I never went in the lavatory, so I don't know how to flush it.....

 

Thanks, Frosty.

Displacement is about 1000# and it easily carries 2 hefty adults over 250# and all necessary gear. Hull draft is about 6 inches.

 

I replaced it with a 9" pitch prop. Now to try it out.

 

Good for you.

Sorry for not paying better attention, but what diameter was the last prop, prior to bedrock modifications?

 

9.25 inches.

 

A 'spun hub' is easily repairable. The old hub and rubber piece is pressed out and a new one pressed in. It cost me $50 to have it done.

 

http://www.dunnritepropellers.co.nz/faq's.html


You could send it to these people aaaaaalll they way round the other side of the world --OR--you would probably find some one nearer in USA.

Cant help on the honesty thing.

 

The original prop had 4 blades. Does the new one also have four?

The boat will draw 6 inches when at rest with 750 pounds all up. A thousand pounds will need right at eight inches. The boat bottoms are 21 inches wide and a little arithmetic says that bottom loading, when planing, will be a little north of 50 pounds per square foot if the all up weight is 750 more or less. That is a lot of bottom loading for a teeny weeny little boat That loading is probably structurally OK because the boat is built hell for strong. Dynamicly, it is a bit much to ask from the beautiful little 9.9.

Foils? Nah! Put a bottom between the hulls which would not be hard to do. The pontoons have healthy chine logs which will provide a place to accept fasteners. Now the boat will draw less than 4 inches at rest. Bottom loading will be much diminished, the driver sits in the middle for solo operation, and the boat will go like a bandit. The whole rig is heavy enough to make a blowover unlikely (but not impossible) but it might take some trim fiddling to keep it from porpoising on account of its short length.

There, hows that for being a busy body who answers questions that were not asked?