SF prop.

[philg]

What makes a slow fly prop a slow fly prop?
Is it the length or pitch,or both?
If it`s not the above then could someone explain it please.

 

[Efliernz]

A SF prop usually has quite wide blades. They provide a huge amount of air movement at low speed. A multi is rarely flying at 50mph straight up... which is what standard props are designed for.
They are not designed to be reving full speed like many narrow blade or pointy props.

I tried some APC 9x4.7 standard props. Lots of noise, not much performance.

Pete

 

[philg]

Thanks for that Pete,I`m new multicopters and are still learning all the jargon.

cheers

Phil.

 

[mailman35]

the e props do work quite well in the 5in pitch, decent amount of thrust and performance.

 

[jforkner]

In the case of APC, look here: http://www.apcprop.com/v/html/rpm_limits.html