Help! 4S brushless motor and ESC for FT Flyer?

[Karthik1130]

Hello all, Today for the first time took maiden of FT Flyer for 4minutes, and it was a success.
The following were the electronics:
1) A2212 2200KV brushless motor
2) Simonk 30A ESC
3) 3S 1300mAH LiPo battery
4) 6045 plastic propeller.

I would like to know whether can we use 4S battery in the same FT flyer.If yes could you suggest a 4S compatible brushless motor and ESC.

 

[Foamforce]

The FliteTest F pack motor and 25a ESC can do 4s. It’s a lot lighter than what you have on there right now too.

How does the Flyer fly with that 2212 2200kv motor? That seems like a lot of motor for that plane!

 

[Karthik1130]

The FliteTest F pack motor and 25a ESC can do 4s. It’s a lot lighter than what you have on there right now too.

How does the Flyer fly with that 2212 2200kv motor? That seems like a lot of motor for that plane!

Thanks for the info. But in India, it's not available. Could you suggest some alternative.
The A2212 2200kv motor performed superbly.Lot of power, also balance and control was excellent.

 

[Piotrsko]

The ESC should be marked as to what it can handle as a maximum somewhere on it. Like 1S 5 amps. If it says 2S or 3S, then no you can't use 4S sucessfully for very long

 

[Karthik1130]

Could anyone suggest a suitable 4S LiPo compatible brushless RC motor compatible with 6inch twoblade propeller for FT Flyer?

 

[Mr Man]

Could anyone suggest a suitable 4S LiPo compatible brushless RC motor compatible with 6inch twoblade propeller for FT Flyer?

Emax 2205 2300kv red bottom.

 

[Mr Man]

Or Emax Eco II 2205 2300kv

 

[Houndpup Rc]

Could anyone suggest a suitable 4S LiPo compatible brushless RC motor compatible with 6inch twoblade propeller for FT Flyer?

Emax Eco II 2306 2400kv or the Emax Eco II 2207 2400kv will give you great power but you need to have a esc that can do at least 40a. (I gave you links with the prop data on a spec sheet below.)

 

[Houndpup Rc]

Or Emax Eco II 2205 2300kv

I don't think they make a Eco II of that size.....

 

[Mr Man]

I don't think they make a Eco II of that size.....

Oh yeah you’re right, Almost any 2205 2300kv will do, maybe even an 1806 2100kv

 

[quorneng]

Just a point but the voltage by itself will not hurt a brushless motor. It is the amps drawn that will do the damage (heat) and the amps drawn is entirely dependent on the load (the prop) on the motor.
The higher the voltage (cell count) the faster the motor tries to rotate so to keep the amps within the max amp limit the smaller the prop has to be.
So a 2205 2300kv will handle a 4s provided the prop is small enough.
In this case a pair of them on 4s happily drive 3x4.5 four blade "quad" props inside the nacelles of a scale Airbus A350.

The maximum a 2205 2300kV motor can sustain is 30A, although even that figure depends on the cooling airflow available, so it pays to invest in a Watt meter to check how close the selected prop and battery voltage are to overloading the motor.
The only other variable left is whether the thrust generated is sufficient to fly the plane.
There is no single solution as one choice effects all the other variables.

 

[Houndpup Rc]

Just a point but the voltage by itself will not hurt a brushless motor. It is the amps drawn that will do the damage (heat) and the amps drawn is entirely dependent on the load (the prop) on the motor.
The higher the voltage (cell count) the faster the motor tries to rotate so to keep the amps within the max amp limit the smaller the prop has to be.
So a 2205 2300kv will handle a 4s provided the prop is small enough.
In this case a pair of them on 4s happily drive 3x4.5 four blade "quad" props inside the nacelles of a scale Airbus A350.
View attachment 250942
The maximum a 2205 2300kV motor can sustain is 30A, although even that figure depends on the cooling airflow available, so it pays to invest in a Watt meter to check how close the selected prop and battery voltage are to overloading the motor.
The only other variable left is whether the thrust generated is sufficient to fly the plane.
There is no single solution as one choice effects all the other variables.

So in theory you could run 6s on a 4s battery if you had good enough cooling?

 

[quorneng]

As long as the amps are kept to within the maximum for the motor a 6s will do no harm but the prop will have to be pretty small, high revving and thus inefficient. You could easily end up with only limited extra performance and a very short battery run time.

The recommended cell count and prop for the motor is likely to be the best compromise between the battery run time and the thrust generated.

If you want more performance the best way is to make better use of what you have. Improve the plane's aerodynamics and reduce its total weight. Easier to say than to do!

 

[Mr Man]

It of course depends on the prop it could run on 4s easily.