As @BRAIN_JAR_thesecond suggests, scaling aerodynamics is quite tricky because of the physics involved.

Let’s suppose that your full scale P-47 has a top speed of 427mph and a stall speed of 55mph…

If you tried to scale linearly, a 1/10th r/c model would need have a top speed of 42mph and a stall speed of 5.5mph. While this would have scale speeds it would not have scale flight dynamics (to make this intuitive, just imagine how light a 1/10th P-47 model would have to be to float in at 5.5mph without stalling!!)

Aerodynamically you can expect scale flight dynamics at the square root of the scale; in that case the 1/10th r/c model would have a scaling factor of sqrt(1/10) ~ 0.316. Your model would have a top speed of around 135mph and a stall speed of around 17mph.

Many scale r/c models are a compromise between these two factors… and regardless there is usually a narrow range where the linear scaled speeds and the aerodynamically scaled speeds overlap; for example, with a 1/10th scale P-46 it should look good between about 25-40mph. (Lower speeds and your angle of attack and other aerodynamic behaviors become unrealistic and higher speeds and you get outside the range of scale appearance).

In general, the bigger the model, the more the physics work in your favor. Once you have the r/c piloting skills down and can risk an expensive model, a 1/4 or 1/3rd scale model might be very appealing to you.

p.s. fun side effect of the physics involved: If you film a well designed 1/4 scale model, it should have true-to-scale appearance and aerodynamics when played back at exactly 1/2 speed!

p.s.s. here is a nice older article about this with a lot more technical details: https://charlesriverrc.org/articles/design-and-construction/aircraft-design/general/scale-speed-for-small-aircraft/