Colyn,
The new turbocharged Columbia 400 was certified with
the "new" Scimtar prop, HC-H3YF-1RF/F7693DF.
The prop I ordered through Lancair for my ES/IO-550N was
the PHC-J3YF-1RF/F7693DF. That's the same prop that's currently listed on
the Lancair website. That's also the same prop that's on the Cirrus
SR22. The original Columbia 300 was certified with the old Hartzell prop,
but the all electric 350 has the "new" Scimtar.
The Lancair Website lists the HC-H3YF-2UF/FC7693DF for the
IVP with the TSIO-550. The "FC7693DF" is the "new" blade. So I think
Lancair is selling the "new" version.
I ended up talking to a guy at Hartzell that was involved
with designing and testing the newest Scimtar propellers. He said the one
on the Cirrus was the newest and greatest. The Columbia 350 wasn't
certified back then.
I have attached the Hartzell document that shows what all
the numbers mean.
Mike Easley
Colorado
Springs