It is equipped with auto rudder bias, in the event of a single engine loss the GFC600 automatically engages and flies the plane taking care of the asymmetric thrust for you. You can shoot a coupled approach if you need to while it’s active. Safe glide is there because it can be. Regarding the 550’s, it was considered, the cost would never have been able to be recovered. I don’t have any seat time in a 550 powered baron to make a real world comparison, but when researching the 550 it seems most of the performance gains were in the single engine performance. Obviously there’s an initial takeoff and climb out gain, but once in cruise most people are pulling them back to the same fuel flow as the 520’s and cruising at the same speed. I figure most folks don’t need a STOL Baron and it spends the majority of its time in cruise. That coupled with the fact that I already had a pair of perfectly good 520’s made the decision pretty easy.

I see it’s listed as having prop sync. I have a 1979 model with very similar avionics and I don’t have. Is there an option to add to these machines?

If I remember right, the answer is "yes, sort of"-- you can get the necessary prop governors (one sends the sync signal, so it's different than the standard version), wiring, and synchronizer, but you'd have to get them from a salvage yard and then find a mechanic who'd be willing to install it.

What he said. The avionics have nothing to do with the prop sync. easiest way for you to add prop sync would be to buy this one....

I like the way you think.

$625k for prop sync. Includes free airplane with fresh updates on interior, avionics, engines, and paint.

Don't you need an engine??? Buy this prop sync for $625K and I'll throw 2 fresh ones in with the sale! Comes with airplane attached.