If you need to calculate the location of a air splitter within a duct then try the

**splitter placement calculator**

The calculations that made this page possible were basically converted directly from James Perozzo's

book

**Hovercrafting As A Hobby**and therefor, any credit should be directed to him. All I did was convert his work to JavaScript for your use.

If you don't know what to do with the output from this calculator, you should probably purchase James' book. It really is awfully handy if you're designing a hovercraft.

Thus-far, I have only completed the calculations for the lift-system. I will be adding other design stages (thrust, etc) when I get the time. Otherwise, it's an accurate alternative to punching buttons on your calculator. Keep in mind that this is beta release .00000000001a. ;-)

So far, this program assumes that your craft will be a simple rectangle shape with a slope or wedge at the front. The air gap is the distance between the ground and the bottom of the skirt (*not* the bottom of the craft).

**Metric Conversions**

American Units | Metric Units | |||||

.394 Inches | 1 Centimeter | |||||

1.093 Yards | 1 Meter | |||||

.621 Miles | 1 Kilometer | |||||

.035 Ounces | 1 Gram | |||||

.0022 Pounds | 1 Gram | |||||

2.20 Pounds | 1 KiloGram | |||||

.264 Gallons | 1 Liter |

**CALCULATION STAGE 1 - Lift Requirements**

Enter data in the following 4 fields and press the "Calculate" button. The answers will appear below.