Where do i find that kind of prop? 12.25 x 3.75?
Like Gene allready mention itīs a APC prop, specially made for IC RC 3D Fun Flyers.
You should find them at your LHS ,Tower, or from APC factory directly.
This size is recommend by many OS LA 46 Pilots as one of the very best prop
to match the 4-2-4 OS LA 46 characteristics.
I still have 2 APCīs waiting on the bench for testflight.
But since a few days itīs raining allday cats and dogs and
the field is to much muddy.
Have Fun
Peter