That is how it works so if one engine is put into gear it will start to spin the planetary gears of the other trans and with no fluid movement for cooling she will burn up the transmission if she runs for like that for any long period of time

"Good job stealing the thread! That’s an apples to oranges comparison of boats."
Bostonirish
------------------------------------------------------------------------------------------------------------

I sincerely apologize. Had zero intention of stealing a thread. My contribution was only with the intention of showing the two so different approaches to choosing a design for the rigging and driveline choices when it came to these two impressive Outerlimits of this magnitude. I, therefore, decided on the title; " Quad Outerlimits at different ends of the spectrum."
That the 47' Outerlimits '4 Of A Kind', of this thread, originally had wonderful Keith Eickert mills, downboxes and ASD10s sure made everybody take notice more than 20 years ago, and IT IS still a very interesting boat. I look forward to following the fortunate owner's endeavors to make her run great this time around. My sarcastic comments surrounding her previous unfortunate turn of events with regards to biz $$$ is better forgotten by now. Subscribing to this thread and again I'm sorry if I unintentionally disrupted this thread about this unique 47 Stiletto, that most offshore boaters would love to call their own.
Lars

If you look at post #60 each engine has a transmission and it is a direct drive after that .

is one engine on a crashbox and one on a velvet drive?

No both are velvet drive type transmissions , But the owner is talking about putting a shiftable crash transmissions back in there To maybe lesson some of the transmission problems the boat has had .