First FPV flight in 2014

During winter I made a little breakout board that I mount directly on to the APM 2.5 board. On this breakoutboard I have soldered a voltage diver that is connected to the APM voltage sensor pin. On this board I also soldered some kind of plug-in slot for my analog RC module. Now the RC module is connected to the APM without any cable. I also mounted the Hobbyking HD Wing CAM.

The Y6 is flying stable and smooth. But the MAG is currently disabled because of EMF noise comming from the motors. This also influences the video capturing. I can easely fix this by extending the motor arms. But this makes my Y6 larger. When I have the time I'll try to benchmark this to find a save min distance between APM and this type of motor.

Test flight

So here are some more photos of the Y6 multirotor full carbon frame equiped with my diy motormounts, AX 2210N motors and 9x47 Slowfly props







And a little video to show that this frame fly's well. It's not a high power acro setup. But it still has ~ 3 to 1 thrust/weight ratio. You feel that on take off. It needs less then half throttle to lift off and hover.

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:

motor: Hobbyking AX-2210N 1000Kv Brushless Motor
prop: Hobbyking Slow Fly Electric Prop 9047SF

esc: HobbyKing 12A BlueSeries Brushless Speed Controller

battery: Turnigy 3000mAh 3S 20C Lipo Pack

project start

My Mini-H Quadcopter project is closed. I'm currently using this quad to learn to fly by FPV with my fatshark goggles.

I'm also closing my other quad project  . This was a great platform to learn, practice and test. But it's a very strong, but heavy setup and adding an FPV cam to this setup would make it to heavy.

So I'm starting this new project. A Y6-Copter. Full carbon frame to make it light and strong. The 6 motors will give me enough lift to carry all electronics and FPV equiment. 6 motors should also prevent a crash when one motor fails in flight.
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