Within a 10% accuracy level on this projects weight study from calculated (paper) to actual (measured) is nothing to be proud of in the Naval...
A couple of years ago looked into rebuilding a pair of Capitol gears and was quoted something like $10K - $12K each, depending on condition. Capt...
Here is a start: MPI Capitol Gears - new and used parts and units It is certainly a challenge to find support for Capitol Gears, I think...
I believe the Alessa Leigh got the 1st pair of 16V2000 engines rated at 2400hp in the states, but the refit took awhile before commissioning. The...
I think you have identified the issue with the port side 1kW transducer fairing block. At this stage you can either move it to centerline within...
The increase in 1/2" pitch means the props sit 1/4" closer to the hull, so big deal. Having had a lot of experience with propeller root burn, I...
By "ventilation problem" do you mean a dynamic instability at the higher speeds with the boat leaning to one side (port, predominantly in your...
44 now
Already been done, with MTU 16V2000M93's rated 2400hp each, stretched to 91ft. http://www.unlimitedyachtservices.com/YTG0810_018_copy.pdf...
Most of the Shaft Logs (the Tube where the shaft exits the hull on the aft side and where the shaft seal connects on the forward side) in FRP...
Two of the FRP boats that hit submerged containers had major damage to the shaft log, and the crews had very little time to prevent the vessel...
I think he has exactly the right priority - survivability/safety 1st for him and his family. Perfect place to start. Pick your worst case...
I used to think solid FRP could be thick enough to compete with the metals, especially in an expedition/trawler/displacement vessel. The...
Well, I recall that the Trinity Group (John Dane et al) under the older VT Halter regime was bidding on the first round of LNG Carrier vessels in...
A lot of speculation for responses, but look at the document for shafting to calculate your appropriate shaft size. Marine diesel engines use a...
Sorry CaptJ, you won't see that kind of performance with a QSM11 in a 54 Bertram. You are just guessing, which doesn't help the OP. Like I...
If you read his response you would see that he is talking about a CAT 3406E. What does Cummins have in 800hp+ that works in a 54 Bertram at 20+...
Why would you send him to Cummins dealer/mechanics when he is talking CAT engines - they don't even have their own haul out facilities?
The 54 has some limits in terms of potential speed, as do most mono-hedron moderate deep-vee hulls. The extra waterline for the 57 is a definite...
Some more food for thought regarding weights (dry - each): CAT C12 - 2589 lbs. Cummins QSM 11 - 2620 lbs. Volvo Penta D13 - 3439 lbs. MTU DD...
