Looking for propeller, p51 mustang

[kentuckynet]

i have a p51 mustang that i do not know who manufactured it.
wingspan is about 45 1/2 inches
i ordered what i thought was the correct prop but as you can see from my pictures i got the wrong one.
i have searched eveywhere, how can you determine prop size?
i would assume its sized for the motor?
not sure how i would get to the motor to get any id info from it?

the larger one is the wrong one and its......

FMS - Propeller: 14x8 4 Bld 1400mm P51 - PROP003​

I'm really lost here and need some help
mack

 

[Doom!]

Can you get to the esc or motor or servo and see if there are any markings on them. Might help to figure out what brand it is. I think this is a slightly older model couldld be durafly, freewing, fms, or others. If we could narrow down the brand it might help.

 

[kentuckynet]

servos dont have any stickers on them

 

[tntpoof]

ill point you to masters airscrew. the have a live help option. give them the details.. that 4 blade prop that is separate blades. tossed me for a spin
https://www.masterairscrew.com/collections/r-c-propellers-for-model-airplanes