Help! Making my First RC plane , need advice

Sunnyg

New member
Hi All,

I am making my first RC plane - trainer possibly slow runner at beginning.

I am building its body from the combination of foam and corrugated cardboard sheet and install below components into it.

1. 1000kv motor with 10 inch propeller
2. 30 amp esc
3. 9g servos - 2 aileron , 1 rudder, 1 elevator.

Planing keep the weight of aircraft body between 200 to 300 gms without above mentioned components.

I want to know:
1. Which type of lipo battery could be suitable for this- want to know battery specifications like mah, C rating , no of cells etc considering the flight time of around 15-20 mins
2. Does esc stop working if battery voltage drops below the storage voltage - like 3.7v for each cell ?

Thanks
 

quorneng

Master member
Your info in a bit light.
The 1000kV only tells you how fast the motor turn for a particular voltage. How many amps the motor can handle depends entirely on the motor specification.
The pitch of a prop has a big influence of the amps it requires to turn it at the speed the motor wants to turn. The second figure in a prop specification is important. 10 x what?
Without this data it is impossible to work out what amps the motor is going to draw and whether it can withstand such a figure.
If you can provide the full details of the motor type and the full spec of the prop there may be a table that provides the amps for a range of number of LiPo cells.
And yes the ESC will most likely stop the motor at a preset voltage so that sufficient battery power remains to control the plane.
 

Foamforce

Elite member
Your components all match up with any simple B pack plane. Ps, you didn’t give the size of your motor, but I’m going to assume 2212. The Scout immediately comes to mind. The one thing is that you’ll struggle to get 15-20 minutes out of it without running a large battery. However, a bigger battery is heavier and harder to fly. I recommend ditching the 15-20 minute requirement and use a 1300mah 3s lipo. That’s a good trainer.
 

Mr NCT

Site Moderator
If you want to think outside the box your electronics will work on the Black Hawk and get great flight times. Just flew mine for 10 minutes on an 80% charged 1300 3s battery. Had to stop when the local vultures and hawks started chasing me.

 

Morgan G

New member
Hi All,

I am making my first RC plane - trainer possibly slow runner at beginning.

I am building its body from the combination of foam and corrugated cardboard sheet and install below components into it.

1. 1000kv motor with 10 inch propeller
2. 30 amp esc
3. 9g servos - 2 aileron , 1 rudder, 1 elevator.

Planing keep the weight of aircraft body between 200 to 300 gms without above mentioned components.

I want to know:
1. Which type of lipo battery could be suitable for this- want to know battery specifications like mah, C rating , no of cells etc considering the flight time of around 15-20 mins
2. Does esc stop working if battery voltage drops below the storage voltage - like 3.7v for each cell ?

Thanks
You’ll want to keep it light so I’d go for a 1350mah battery, 3 cell, C-rating is not important as it is often a lie so choose based off of product reviews not just the rating (but higher is better ofc).
The ESC will not stop working entirely if voltage goes below that but your motor will become noticeably weaker when your batteries get low and this will tell you that it is time to land.

I’d go for a smaller prop than a 10 inch, but it will largely depend on the motor in use, if you go for something around the size of an FT A pack (or just that) then you should use the props that come with that motor, same is true for a b pack but don’t go above that size as your plane will be torquey and heavy.
Ik im late and you’ve probably already built it now but oh well hopefully this helps.