Hi guys, So I want to upgrade my motor. The one that I have right now is the Goolsky Original SURPASS High Performance 2216 1120KV 14 Poles Brushless Motor off of Amazon. I want something for about $20-30 and that will work with 50a ESC. I want something that will make the Master series really move! I don't know weather in this case more watts or trust is more important. You guys have any ideas?
Thanks guys!
PS. I don't want anything off of ali express!
I don't know about the specific motors you reference, but can speak to one of your questions:
Wattage vs thrust.
Wattage is useful as a quick, rough guess of whether a motor is big enough for your plane. Typically you want a certain wattage per pound of airplane for it to fly well. General rules of thumb are as follows:
50 watts/pound: Trainers and slow flyers
75-100 watts/pound: Basic aero/sport flying
125 watts/pound: Precision aerobatics
150+watts/pound: Extreme 3D performance
Most people on the forums here shoot for a minimum of 100 watts per pound.
The motor and prop need to be sized to each other so that the prop can transfer all that energy from the motor into pulling the plane through the air. Different airframes tend to need different combinations of propeller and motor.
Big, draggy airplanes, planes that you want to accelerate quickly (like hand-launched planes), or planes that you want be able to climb vertically forever will need more thrust. You will typically want a lower kv motor and a large diameter prop without much pitch for these applications so that you can grab as much air as possible for the most thrust.
Other planes don't need as much acceleration or pulling power for and top-end speed is more important. These tend to be sleek, low drag planes you want to fly fast. These tend to have higher kv motors and small diameter props with a lot of pitch.
But its all a balancing act, you just need to match the power system with the plane and the way you want it to fly.
You mention this is for a master series, is it for your p-38, or something else?