Showing posts with label sequence. Show all posts
Showing posts with label sequence. Show all posts

Sunday, August 18, 2013

Thrust test

One of the differences between a normal hexa copter and a Y6 copter is the thrust efficiency. 

On a hexa copter motors are placed side by side. They do not interfere each other and deliver maximum efficiency.

On a Y6 copter the motors (props) are mounted on top of each other (in sequence). The prop wash of the top motor/prop causes the bottom motor/prop to perform less. This setup is less efficient. The exact efficiency loss can only be tested in practice and depends on prop size, distance between motors, …


On my Y6 copter I use 9x4.7 inch props. The distance between the top prop and the bottom prop is also 9 inch. As you can see on the graph I got a 10% efficiency loss for this setup. That is an acceptable result.


Setup: