KDE 600 XF-1175 motor choice

[petertha]

I'm thinking of making the leap to a Logo 500SE from 450 size newbie training & considering this motor for 6S pack: KDE 600 XF-1175. Any comments or experience? Is there a specific adapter/mounting plate PN required? What about pinion gear?

http://www.readyheli.com/KDE600XF-11...r_p_38594.html

http://www.kdedirect.com/KDE600XF1175.html

[mahbouni]

Seems like a powerful motor. IT has a 6mm shaft so you should check if the correct pinion is available.

[petertha]

Originally Posted by mahbouni

IT has a 6mm shaft so you should check if the correct pinion is available.

Do these mean 6mm pinion hole ID = shaft dia?
http://rcflightstore.com/index.php?c...sort=3a&page=2

[petertha]

Also.. do most Logo500 guys run these counterbearings, or is it more for hard duty flying?

[mahbouni]

The Logo 500 main gear is Mod 0.7 so you need a Mod 0.7 pinion with a 6mm ID. These are available but you need to work out how many teeth you need, depending on the head speed you need. Have a play with Mr Mel's headspeed calculator.

http://www.readyheli.com/headspeed-calculator.html

I use the counterbearing on all my Logos. It takes the stress off the motor bearings.

[petertha]

OK thanks. I punched specs into the headspeed calculator: 153 tooth main gear, 1175 motor kv, 6S lipo, default battery condition, sport flying, 5-6 min flight time & left other default specs... against available pinion teeth number for 6mm shaft, both with/without Castle governer mode. Got these results. I've also been told to select 550m blades but that doesnt factor into this calc? Now what?

[mahbouni]

Based on your calcs I would start with the 16T pinion.