motor

f-35lover

Member
Hello, I have an A2212/6 2200KV motor and a 40a esc. what beginner FT planes can I make? I can purchase another esc but not the motor. but the esc and motors confuse me. some places say i need a 40a but others say a 18amp. i'm a beginner so i was planning to put the A2212/6 2200KV on the Storch. would a 40a esc and A2212/6 2200KV motor be ok for the storch?
 

Inq

Elite member
Hello, I have an A2212/6 2200KV motor and a 40a esc. what beginner FT planes can I make? I can purchase another esc but not the motor. but the esc and motors confuse me. some places say i need a 40a but others say a 18amp. i'm a beginner so i was planning to put the A2212/6 2200KV on the Storch. would a 40a esc and A2212/6 2200KV motor be ok for the storch?

The 2200KV on a A2212 usually swings a very small prop... 6x3.5. I have all three flavors of A2212... 1000KV, 1400KV and 2200KV. See this post for more quantifiable data. https://forum.flitetest.com/index.php?threads/diy-motor-dynamometer.71186/#post-736111

I used the A2212, 1000KV with 10x4.5 prop on my Storch - https://forum.flitetest.com/index.php?threads/inqd-turbo-storch.71382/. It is my understanding that an A2212/2200KV with the small prop is good for the smaller planes. The lower KV swing bigger props at slower speeds and are better for larger, but slower lighter planes. The higher 2200KV is better for smaller planes. I think the Storch with a 6" prop would be not be a good combination. IMO, If you are new to flying, I think something like the Mighty Mini Trainer might be more appropriate for your motor. If you have even a little experience, you might want to put it on one of the WW1 planes like I'm doing with my 2200KV... https://forum.flitetest.com/index.p...d-ruary-by-inq-inqd-ft-mm-dr1-triplane.71739/
 

FlyerInStyle

Elite member
The 2200KV on a A2212 usually swings a very small prop... 6x3.5. I have all three flavors of A2212... 1000KV, 1400KV and 2200KV. See this post for more quantifiable data. https://forum.flitetest.com/index.php?threads/diy-motor-dynamometer.71186/#post-736111

I used the A2212, 1000KV with 10x4.5 prop on my Storch - https://forum.flitetest.com/index.php?threads/inqd-turbo-storch.71382/. It is my understanding that an A2212/2200KV with the small prop is good for the smaller planes. The lower KV swing bigger props at slower speeds and are better for larger, but slower lighter planes. The higher 2200KV is better for smaller planes. I think the Storch with a 6" prop would be not be a good combination. IMO, If you are new to flying, I think something like the Mighty Mini Trainer might be more appropriate for your motor. If you have even a little experience, you might want to put it on one of the WW1 planes like I'm doing with my 2200KV... https://forum.flitetest.com/index.p...d-ruary-by-inq-inqd-ft-mm-dr1-triplane.71739/
8 inch props swing just fine on them, in the 2200kv ones
 

f-35lover

Member
The 2200KV on a A2212 usually swings a very small prop... 6x3.5. I have all three flavors of A2212... 1000KV, 1400KV and 2200KV. See this post for more quantifiable data. https://forum.flitetest.com/index.php?threads/diy-motor-dynamometer.71186/#post-736111

I used the A2212, 1000KV with 10x4.5 prop on my Storch - https://forum.flitetest.com/index.php?threads/inqd-turbo-storch.71382/. It is my understanding that an A2212/2200KV with the small prop is good for the smaller planes. The lower KV swing bigger props at slower speeds and are better for larger, but slower lighter planes. The higher 2200KV is better for smaller planes. I think the Storch with a 6" prop would be not be a good combination. IMO, If you are new to flying, I think something like the Mighty Mini Trainer might be more appropriate for your motor. If you have even a little experience, you might want to put it on one of the WW1 planes like I'm doing with my 2200KV... https://forum.flitetest.com/index.p...d-ruary-by-inq-inqd-ft-mm-dr1-triplane.71739/
If i use the mighty mini trainer in a 2200kv what esc should i use? a 40a?
 

Ryan O.

Out of Foam Board!
8 inch props swing just fine on them, in the 2200kv ones
It’s irresponsible to go over very low pitch 7” on 3s, maybe very very low pitch 8” on 2s. The 2212 850kv motors on 8-9” slow fly are my favorite for beginners because they don’t end up going too fast but have plenty of torque to recover from a mistake.
 

f-35lover

Member
It depends on the prop. Go for 6x4.5 and down and 30-35 amp will work, especially since you won’t need to be over 2/3 throttle on 3s.
so i would use a 2200kv motor with a 40a esc and a 6x4.5 prop in a mini trainer, right? what other planes could i use with the same setup?
 

Merv

Site Moderator
Staff member
Hello, I have an A2212/6 2200KV motor and a 40a esc. ... but the esc and motors confuse me....
The Kv of a motor is how many rpm’s per volt. The higher the Kv the faster it will spin, likewise the higher the voltage the faster it will spin.

When we talk about Kv and prop size, think transmission. High Kv motors (2200) need smaller props and are similar to high gear in a transmission, little lugging power but goes fast. A lower Kv motor (1200) will swing a larger prop and is similar to low gear in a transmission, lots of lugging power but limited speed. A tractor and a race car may both have the same horsepower, one is built for speed and the other for pulling large loads. With electric motors, the power is measured in watts, high Kv motors are for speed, low Kv motors are for lifting heavy loads.

Regarding ESC’s the amp rating is a do not exceed number. If the motor draws more amps than the esc is rated for, the esc will burn out. Batteries have a similar limit, if you exceed the amp rating, you will damage the battery. With batteries, the amp limit is calculated, the formula is MAH/1000 x C. Example: a 2000 mah 20C battery can safely supply 40 amps (2000/1000 x 20=40).

When selecting components, start with the motor, how many amps will it draw. Then select an ESC that can supply a bit more, the Rx and servos will also draw a few amps and a bit of headroom never hurts. Then select a battery that can supply the amps required.
 
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f-35lover

Member
The Kv of a motor is how many rpm’s per volt. The higher the Kv the faster it will spin, likewise the higher the voltage the faster it will spin.

When we talk about Kv and prop size, think transmission. High Kv motors (2200) need smaller props and are similar to high gear in a transmission, little lugging power but goes fast. A lower Kv motor (1200) will swing a larger prop and is similar to low gear in a transmission, lots of lugging power but limited speed. A tractor and a race car may both have the same horsepower, one is built for speed and the other for pulling large loads. With electric motors, the power is measured in watts, high Kv motors are for speed, low Kv motors are for lifting heavy loads.

Regarding ESC’s the amp rating is a do not exceed number. If the motor draws more amps than the esc is rated for, the esc will burn out. Batteries have a similar limit, if you exceed the amp rating, you will damage the battery. With batteries, the amp limit is calculated, the formula is MAH/1000 x C. Example: a 2000 mah 20C battery can safely supply 40 amps (2000/1000 x 20=40).

When selecting components, start with the motor, how many amps will it draw. Then select an ESC that can supply a bit more, the Rx and servos will also draw a few amps and a bit of headroom never hurts. Then select a battery that can supply the amps required.
So then maybe my motor could go for the mighty mini planes instead of the swappable kits. if my esc is faster my plane goes faster right?
 

Merv

Site Moderator
Staff member
...if my esc is faster my plane goes faster right?
No, the ESC has no effect on the speed of the plane. With the ESC, it’s simply can it supply the amps the motor is asking for. If the motor asking for more amps than the ESC can supply, the ESC will burn out.

I think your motor will make the storch fly, though it may be a bit fast for a beginner. In a perfect world you would be using a 1000 to 1200 kv motor.
 

FlyerInStyle

Elite member
It’s irresponsible to go over very low pitch 7” on 3s, maybe very very low pitch 8” on 2s. The 2212 850kv motors on 8-9” slow fly are my favorite for beginners because they don’t end up going too fast but have plenty of torque to recover from a mistake.
It mightve been a 7 inch, dont know but thanks for the tip