Ferdinand aka. EndOfDays did it again!

His latest project is an X8 with 8x T-Motor U8 with 29" propellers.

To test the motors' performance and efficiency, he fixed up an X4 quad frame from aluminum. His first test was already impressive: 4kg frame, 4kg batteries (8S) and 4kg payload = 12kg TOW - overall flight time: 44 minutes.

Follow his progress on RC Groups: http://www.rcgroups.com/forums/showthread.php?t=1994599

Views: 5781

Comment by Arthur Benemann on September 21, 2013 at 10:50am

Those motors are awesome.

I was just looking at them here thinking where the hell will I get a 29" prop., or even a frame to hold it.

Comment by Stefan Gofferje on September 21, 2013 at 10:52am

The props are also from T-Motor. The frame you build yourself :)

Comment by Arthur Benemann on September 21, 2013 at 10:52am

The U8 motors look's nice:

Comment by u4eake on September 21, 2013 at 12:28pm

Reminds me of the days when I used to open up broken videorecorders to get the motors out.  I would stack a few together and rewind them, make a custom bell and glue magnets in, to make direct drive helicopter motors (multicopters didn't exist yet)

Comment by Greg Dronsky on September 21, 2013 at 1:49pm

Would be cool to test it as some kind of a delivery drone.

Comment by Gary McCray on September 21, 2013 at 5:11pm

Ive been waiting to see somebody build a quad with the big T-Motor motors and props.

Some people have been saying handling would be too slow and recovery not good.

Didn't look bad at all to me.

Very stable and solid in the air, but probably not much good for acrobatics.

Not a cheap Quadcopter, but definitely one it looked like you could use for a variety of medium and heavy lift purposes.

I'm building a cheaper smaller Quad with the RCtimer 5010 360KV pancake motors to try 15" to 17" props.

Sort of the other end of the spectrum from this one, but I don't need to mortgage my house to finance it. 

Comment by Stefan Gofferje on September 21, 2013 at 5:55pm

Yeah, those pancakes are little wondermachines!

I recently changed the drive train of my 2.1kg 70cm quad from NTM 2830-800kV with 10x4.5 props to Multistar 4822-390kV with 15x5.5 props and flight time went from 10 mins with 4S5000 to 17 mins with the same battery. Still have some vibration control to do, but I'm quite happy!

Comment by David on September 22, 2013 at 11:26am

I really like the idea of what can be done with this type long endurance multicopter, but I think the argument that multicopters are safer because they have smaller propellers with less inertia cannot be made for this type of setup right?

I have to believe that contact with one of these propellers would cause just as much injury as a helicopter with a similar weight would.

Comment by WhiteRabbit on September 22, 2013 at 12:28pm

it is 28'' and 100KV, not a toy! for serious user! dont even think to fly over people.


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