wsuffa
Touchdown! Greaser!
I'd imagine the Turbo 540 or which ever the engine is, gets closer to 150kts?
Depends on altitude and power setting. I didn't like to run the turbo on the 112TC above 65% power even though it was allowable by the book (lasted longer that way). I'd run the TIO-540 the same way. In the upper teens, you should see something above 150 (I think 100% power is 190 kts book and 70-75% power is 170-ish, but I didn't fly the 540-series engine). Below 10K, I'd think 150-ish should be about right.
If I owned another Commander I'd want the 114/115 series with turbo and TKS (yes, some were factory-equipped with TKS).
The guys on commander.org can give you a better feel for the real numbers.