Design And Technology, Is Rocket Boat a Good idea???

Question

i have been told to ask to make a kind of model?

i have decided to do rocket boat, is it a good idea?

Would it work??? What should i make the boat out off? Thanks in Advance :-)

Answer 1

Rocket? Do u mean technology or its just about form?

Look at Cigar boats (http://www.yachtcouncil.com/yachts-list.... - they look like rocket already.

Answer 2

Um No...Highspeed boats still use the water as the main part of propulsion; props, water jets, etc.  This also aides in steering the craft.  Because of the aerodynamics involved with a rocket, jet, or turbofan/afterburner, it would cause the craft to become incredibly unstable, unsteerable, etc.  No matter how pretty the boat is, it's still like going 0-200mph in 5 seconds on a fan boat, then taking off like a sail, nosediving, or rotating out of control.  Using a rocket device is rather unstable in the first place, and you will have a rough time keeping water from dousing the rocket fuel.  If you use a jet or turbofan/afterburner setup, I would be scared to be within a mile of it when the boat flips (and it probably will).  Because a jet or turbofan/afterburner spins at a high rate and compresses jet fuel to an extreme, having it suck in water would cause a violent, metal shard filled explosion.  Not fun for the guy driving the boat.

Somthing to look into though is a turbojet engine that can spin a prop or impeller...turbojet engines produce unbelieveable amounts of torque and horsepower, and can eat gas (or even propane) less than a racing style combustion engine.

Answer 3

The biggest problem with  rocket, and boat in the same sentence is that you would have NO control. You need to be able to adjust the speed to the water conditions, and steering would be helpful.

Answer 4

A rule of thumb here... anytime you strap a rocket to your butt, it's never a good idea.

Actually, it would be pretty tough to make a model of a rocket boat.  Building the boat and using something like an Estes rocket engine or CO2 cartridge (safer), is the easy part.  Having it survive the acceleration and the remain stable is the hard part due to lack of control.

Answer 5

Yeah...there are real rocket boats....drag boats and hydroplanes...the ones with a forked 2 hull bow and a big spoiler at the back.

The slope between the forward hulls(sponsons, I think) provides foward downforce and the spoiler provides rear downforce.

Look up Hydrofoils and Drag Boats...

A model shop with a rocketry department can supply you with a few engines to try by a company called Estes. You need a car battery, a 2 conductor wire and four alligator clips for ignition.

Have fun. Totally doable.

DM