Hi there

few posts ago I presented the way how to plan your first boat.

But I forgot to add the most important information: learn as much as possible!

Some guy wrote that 12v 700 motor was too slow. Funny.

THIS IS MY FIRST RULE: EVERYTHING DEPENDS ON COMBINATION OF MOTOR, PROP, AND HULL.

These three 'parts' of each project describe the final efect. You can use 400 motor and reach 50 km per hour, using small 1000mAh battery. You can also buy huge 700 motor and power it with 14.4 v and as a final efect you get NOTHING because of wrong prop.

THE SECOND RULE IS: A PROP DIAMETER MUSTN'T BE BIGGER THAN ANKER ( ROTOR ) DIAMETER, if we talk about direct drive.

Few years ago I built Graupner Key West catamaran. It was powered by 700 motor and 9.6 battery. It was a bullet! When I added additional cell I was shocked! It was fast as a jet! Don't believe in all what people say.

So, if you have good deep vee hull and all equipment you need, it's time for building the boat. If you remember first part of my lesson, you shouldn't have any problem with your project. Drill a hole below the water line. The distance between a hole and water surface should be equal to the prop diameter. That means that if the boat doesn't run, the edges of prop touch the water surface.

That's all for today. Have nice time.

Peter