Help! P-51 Propeller

Emery

New member
Looking for suggestions for a 4-blade propeller for the Master Series P-51D. Preferably a prop that works with Power Pack C (Motor: Radial 2218/1180Kv, ESC: Flite Test 40A). Also putting retracts on. The Red Tail "Bunny" used the 4-blade prop.
 

Tench745

Master member
Looks like Flite Test recommends a 10x4.5 2-blade prop for the C-Pack.
Doing some math to figure out the prop loading, a 4-blade prop that has a similar prop load and pitch-speed to the recommended prop would be something in the 8" to 8.5" diameter range.
All that said, 4-blade props are pretty hard to find, especially ones for planes of this size.
The nearest size I could find is a 7x5.4 4-blade for an FMS P-51 mustang. I have no way of knowing if this prop would fit your motor or perform well on your plane, but it's somewhere to start anyway.

Edit to add: a 9x4.5 3-blade should be a pretty good fit if you can't find a 4-blade that works.
 
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Emery

New member
Thanks. The FMS prop was the closest I could find that was close to working. 4-blade electric props in that size range are not readily available.