Rocket prop extension

DeltaTango

Active Member

• Feb 1, 2018

• #1

What size spacer is used for a standard hub Hartzell on a Harmon Rocket?

 

Toobuilder

Well Known Member

• Feb 2, 2018

• #2

Are you asking about using a standard hub Hartzel + a spacer instead of the usual "extended hub" Hartzel?

 

F1Boss

Well Known Member

• Feb 2, 2018

• #3

No extension needed

Buy the right prop - "M" hub - and you'll be fine. No extension needed.

 

G

Gusmax

Well Known Member

• Feb 2, 2018

• #4

I just looked this up on the Hartzell website last week and if you already have a standard "C" hub like I do, then you will a 2.56" extension. 6.75"-4.187"=2.563". Please look it up yourself and confirm I have it correct?

Cheers,
Phil