Bret S
Member
Haven't posted anything stupid in a while
I guess what I mean to say is I haven't posted anything in a while
So to the point... I'm still a ways off from buying yet been dreaming due to all the IO-390-X postings and wanted to pose a question about engine power, prop and budget trade offs.
To keep the initial investment lower, but with an eye to the future when I want to buy an $11000 composite acro propeller to mate with the 210hp beast. I haven't seen anyone consider:
IO-390-X with a 3 blade Catto prop
$32000 eng
$1900 prop
--------------
$33900 total
- vs -
Lycoming IO-360-M1B with a Harzell BA and governer that I consider minimum performance level
$24400 eng
$1100 gov
$6100 prop
---------------
$31600 total
How much of the performance loss from a FP wooden prop with an additional 30 hp be vs. the 180 hp CS system?
I might assume I'd be doing 8000' crusing at %65 power with the IO-390-X to roughly equal the %75 power cruse of the IO-360 for fuel economy and yet want to do some deceint sport acro.
Any insights?
So to the point... I'm still a ways off from buying yet been dreaming due to all the IO-390-X postings and wanted to pose a question about engine power, prop and budget trade offs.
To keep the initial investment lower, but with an eye to the future when I want to buy an $11000 composite acro propeller to mate with the 210hp beast. I haven't seen anyone consider:
IO-390-X with a 3 blade Catto prop
$32000 eng
$1900 prop
--------------
$33900 total
- vs -
Lycoming IO-360-M1B with a Harzell BA and governer that I consider minimum performance level
$24400 eng
$1100 gov
$6100 prop
---------------
$31600 total
How much of the performance loss from a FP wooden prop with an additional 30 hp be vs. the 180 hp CS system?
I might assume I'd be doing 8000' crusing at %65 power with the IO-390-X to roughly equal the %75 power cruse of the IO-360 for fuel economy and yet want to do some deceint sport acro.
Any insights?
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