Hi Bob
I think a lot of Turnigy motors are out of stock at the moment. Overlander Batteries do a 3542 1250kV which is pretty close and you could always run on a 3S LiPo.
Chris
Hi Chris,
I really must find out a bit more about brushless motors, rather than taking "pot luck" on what "looks right" or has been know to work well in other models (although to be fair - this has held me in "good stead" so far !).
My guess has been that the first two numbers in the motor spec is the diameter of the can, so (using my 3648-1450 motor for this analysis) my motor would have a 36mm diameter can (body).
What the next two numbers are used to designate (in this case 48) is currently unknown to me - but perhaps it has something to do with the windings or the gauge of wire used in the windings?
After the dash (-) I read the number as being the KV rating, so in his instance my motor would have a 1450KV rating. Even that is a bit of a mystery - what does that mean in practical terms?
Would a high KV motor of the type that I usually choose naturally give more power, and if so , is this because it can spin faster but may not have as much torque as the same motor with a lower KV rating?
If this is the case, a lower KV motor could be more suitable for turning a slightly bigger propeller and could be more thrifty on power consumption giving longer run times and possibly without giving away too much speed?
I am basing all of my reasoning on what I know works with brushed 540 type motors that I used for many years when I was younger and racing r/c model cars.
Less windings would give a lot more torque.
Lots of windings would give a smoother motor with less torque.
I need to get my head around how the brushless motor descriptions relate to their performance (in simple terms as described above for 540 brushed motors).
Stay safe.
Bob.