Merlin 61 impeller diameter

[Leck26]

Anyone know the diameter of the two rotors used in the Merlin 61 and 66 engines?

 

[tomo pauk]

Merlin 61 - 11.5 in impeller diameter for the 1st stage, 10.1 in for the second stage.
Merlin 65, 66 etc - 12 in for the 1st stage, 10.1 for the 2nd.

 

[Leck26]

Thank you!