I am designing an airplane that I am going to build. I have built some plane before but not this big. This plane has a wingspan of 1,5 meters. It is a pusher configuration. The the wing and tail surfaces should be hot-wire-cut out of blue foam (styrofoam). I estimate that the weight will be around or slightly less than 2 kg. I want around 1:1 trust weight ratio and as high efficiency as possible when cruising around at below half throttle. I have designed the airplane for a 12 inch propeller but I can go up maybe one inch is it is necessary. Speed is not a priority here.
I have a few 3 cell 8000 mAh batteries that I want to use in this airplane. When I do some research I found that people usually use 4 or 5 cell batteries for this size of airplane. But I am sure this is possible with a 3 cell as well. I also think it is important that the motor should not bee pushed to the limit. I do not want it to get hot after cruising around for 20 minutes.
In conclusion: I want an efficient motor that can spin a 12 inch prop can produce around 2 kg of trust at full speed using a 3 cell battery.
Maybe there are some people with similar sized airplanes flying of 3 cell batteries? If so, please share your motor-propeller combination and how mush static trust you get.
Here are some CAD images of the plane:
I have a few 3 cell 8000 mAh batteries that I want to use in this airplane. When I do some research I found that people usually use 4 or 5 cell batteries for this size of airplane. But I am sure this is possible with a 3 cell as well. I also think it is important that the motor should not bee pushed to the limit. I do not want it to get hot after cruising around for 20 minutes.
In conclusion: I want an efficient motor that can spin a 12 inch prop can produce around 2 kg of trust at full speed using a 3 cell battery.
Maybe there are some people with similar sized airplanes flying of 3 cell batteries? If so, please share your motor-propeller combination and how mush static trust you get.
Here are some CAD images of the plane: