Are these right propellers for my motors?

[DiscrafT]

Hi there,
I'm rebuilding one hexacopter which I bought from my brother. And on the drone were carbon fiber T propellers 15x5.5 (I'm almost sure) https://hobbyking.com/en_us/multiro...yle-propeller-15x5-5-black-cw-ccw-2pcs-2.html
And these motors MT 3510 600KV link: http://www.ebay.com/itm/390762798123
But if I take a look at the thrust data table (here: https://www.unmannedtechshop.co.uk/product_images/uploaded_images/mt3510-thrust-data.jpg) for 11.1V my type of propeller is listed there but only for the 14.8V which I will be using, but there are only other propellers. Can I still use it with 4cell battery? Or which should I buy for these motors because I have to buy anyway all 6 new because they are broken.
And another question. I found that motors can have CW/CCW screw threads but I have tried to screw and unscrew all screws on motor and they are only CW all. It is ok or do I have to buy 3 CW and 3CCW motors because these motors are using 2 screws and it was working so I'm just curious.
Thanks!

Drone picture:

 

[Jackson]

I found that motors can have CW/CCW screw threads but I have tried to screw and unscrew all screws on motor and they are only CW all.

That refers to when the propellers are mounted with one nut to the motor shaft.

 

[mozquito1]

You could just buy all CW or CCW as motor direction can be changed in bl-heli, if you have blheli esc's. So actual motor direction no matter. However the thread direction does matter unless you can get nylon lock nuts to go on the thread as these ain't coming off, ever. Well non of mine ever came off.

 

[Jackson]

However the thread direction does matter unless you can get nylon lock nuts

Did you look at how those type of props are mounted?

 

[mozquito1]

Obviously not cowboy, but he does not need to worry then,
he could throw any motors on as long as they are all the same.
Direction change in blheli if needed.
I would still blue threadlock them nuts though.

 

[RENOV8R]

No Betaflight or BLHeli pass through for this bird, motor direction will need to be changed by swapping wires.

 

[Gyro Doctor]

... Yep, just swap any two wires to correct spin directions.
CW/CCW screw thread concerns are for props mounted by a single nut and don't apply to this situation.

 

[DiscrafT]

Yes that was the reason why i created this post just to be sure because I suspected that for 2 screws mount I will don't need to care about CW/CCW motor types. But the main question was which propellers are the best in my case.
btw. thanks for all replies.

 

[Gyro Doctor]

give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime

http://www.dronetrest.com/t/how-to-choose-your-multi-rotor-motors-props-esc/211

 

[mozquito1]

The ones that you have are OK, may be some new ones though.

 

[RENOV8R]

Yes, those are carbon fibre props, wouldn't suggest using them. The only benefit of CF is slightly less weight which isn't a big deal with a bird this size. You actually lose a little flight time and do you really want to spend over $200 for a set of 15" T-Motor props. I would recommend APC 15 X 5.5 (model # APC150055MR), excellent durable props and usually come fairly well-balanced. I use the 14" on my T650S and they're nice and quiet

 

[mozquito1]

Carbon props=motor killers.
If you cut the throttle & they hit dead on the tip they either going to snap
Or rip your bell off
Plastic are more forgiving.

 

[DiscrafT]

Some of these? https://hobbyking.com/en_us/catalogsearch/result/?erp_category=&q=APC+15x5.5
Because they are even more expensive that those CF which I have on my drone now.

 

[RENOV8R]

All the more reason to steer clear of them. Cheap CF will delaminate and more important, they probably won't be balanced very well you can't really balance CF props

 

[DiscrafT]

Ok and should I buy propeller balancer for APC prop and balance it with tape or what?

 

[RENOV8R]

Yep, I just use black electrical tape and it's never come off. As for the balancer, I 've got one but quite honestly I don't think it works that well and I just have a 2 " finishing nail hammered into the side of my workbench that I put the prop on.

 

[mozquito1]

Yep, I just use black electrical tape and it's never come off. As for the balancer, I 've got one but quite honestly I don't think it works that well and I just have a 2 " finishing nail hammered into the side of my workbench that I put the prop on.

You caveman you

 

[RENOV8R]

Yeah, forgot to mention I drive that nail into the workbench with my bare fist haha

 

[mozquito1]

Some of these? https://hobbyking.com/en_us/catalogsearch/result/?erp_category=&q=APC+15x5.5
Because they are even more expensive that those CF which I have on my drone now.

Them props are decent, it not like your going to be flying acro & chewing through them. I flew a syma, well 2 & they bust
after 2hrs. Plus they just didn't have the umph I wanted, so i built my own & basically learned to fly on a 3S zmr250.
I chewed through 7 flight controllers,
3 esc's, 3 frames & countless sets of props in my first year. But props where the only thing I didn't mind paying out for.
Possibly a prop or 2 everytime I go out.
No one's perfect .