Quote:
Originally Posted by mach1stang
but in somthing like this would'nt it be better to have a high kv motor to turn the fan faster for more air?
|
The 8xl is 2000kV. So at we'll say 15V, that would be 30000 RpM. This EDF is 90mm in diameter, and designed through "computational fluid dynamics". That's a fancy way of saying "It's very efficient". It makes 5 pounds of thrust at just 27000 RpM. I suppose I could go with a higher kV and lower voltage, but that would lead to higher losses in the system. With the smaller EDF's a higher kV is required to achieve any usable thrust at all because the blade-swept area is proportionally smaller.