Deciding which to order, the Hartzell 72, or 74 inch prop for my RV7a with 180 HP.
Vans web site suggests the 74 inch unless you are building a tail dragger. However, when I phoned Vans one of the tech reps recommended the 72 inch model for the RV7A.
The additional ground clearance would be good, they do quote the minimum diameter for repair as 72 inch thus there is no margin for error if it is damaged on the tip.
I do have an alternative prop available, a three bladed MT zero timed with new blades for approx $1000 more than the Hartzell
Thoughts please
Peter
Vans web site suggests the 74 inch unless you are building a tail dragger. However, when I phoned Vans one of the tech reps recommended the 72 inch model for the RV7A.
The additional ground clearance would be good, they do quote the minimum diameter for repair as 72 inch thus there is no margin for error if it is damaged on the tip.
I do have an alternative prop available, a three bladed MT zero timed with new blades for approx $1000 more than the Hartzell
Thoughts please
Peter