As the title says I'm swapping from a 3B Catto to a Hartzell in my RV-7. Thanks @Walt!
I'm waiting on my prop gov and cables to show up for the swap so I've got a little time yet and wondered if there's any specific test data folks would be interested in for this particular permutation of propellers?
Here's what I've considered so far:
- Measured change to CG (I'm too tail heavy currently)
- Takeoff performance
- Cruise performance by fuel flow, % Power, MP and RPM (I'd like to be able to judge blade efficiency knowing the Catto is really good)
- Measured Sound Level (my wife is an audiologist and I promised her it'd be quieter in cruise - hope I'm right)
I'll take any advice on testing these but what else would help folks choose props?
I'm waiting on my prop gov and cables to show up for the swap so I've got a little time yet and wondered if there's any specific test data folks would be interested in for this particular permutation of propellers?
Here's what I've considered so far:
- Measured change to CG (I'm too tail heavy currently)
- Takeoff performance
- Cruise performance by fuel flow, % Power, MP and RPM (I'd like to be able to judge blade efficiency knowing the Catto is really good)
- Measured Sound Level (my wife is an audiologist and I promised her it'd be quieter in cruise - hope I'm right)
I'll take any advice on testing these but what else would help folks choose props?