HB-MKVI In devlopment, need suggestions

[Max Lobovsky]

I've had experience with electric RC airplanes and hovercrafts, so here is some advice:

1. In general, i believe hovercrafts use about 1/3 of their power for lifting and 2/3 for pushing, that's just a rough idea of how much wattage to use for each.

2. Defenitley don't make your own props if you can help it. I'm sure you will get a huge improvement by using RC air plane props. RC plane props usually have a designation like 5x5 which is diameter x pitch where pitch is the distance the propeller would move through the air if it completed one full rotation and there was no, for lack of a better word, slippage. Because you are going to be operating at much slower speeds than most RC planes, you will probably want the lowest pitch and the highest diameter you can find. Lower pitch props higher diameter props tend to give highest total force (but they have lower top speeds...). I understand you have a problem with having too large of a diameter prop, so

3. You can try angling the motor down so that it balances out the torque-ing effect or you can try using two or three smaller motors with smaller props. Actually, even better than those ideas is probably to have more lift in the front of your hovercraft to compensate for the torque.

4. I don't know what your total weight is, but if you are looking to cut some, im sure you can cut off the outer parts of of the muffin fans and just make a simple sheet metal tube to use as a duct.