3-Blade Propeller, 9 x 7.5

Is this prop EFLPO9753B compatible with the EFL08250 T28 Trojan?

This E-flite prop (EFLP09753B) center hole is too large for my E-flite 450 motor shaft. Is there a spacer or wedge cone available to adapt to the prop hole?

is this part compatible with the carbon cub s2 1.3m?

will this work on the T 28? If not which one does?

size of shaft opening