I'm not aware of any IO boat that has been converted to use IPS. My guess would be that in the 35' - 40' range (If we are talking lighter, faster)...
See http://www.sabreyachts.com/motor_yachts/sabre54_express/performance.php Sabre 54'. Test results by the OE, one boat with IPS one with CAT...
Hitting a submerged shipping container at speed with a conventional inclined shaft system will in 99% of the cases result in a really, REALLY, bad...
Sound....Agree, DD is hard to beat. Other than that.....They are also an efficient energy converter, problem is it converts fossil fuel to...
3,200 and 33.2 knots. Was that WOT ? If so you are 400 rpm shy of were you need to be. Two prop sizes down would get you 400. Karl2
Trevally, There was a test done by, I think, boattest.com with two identical vessels, one with Zeus and one with IPS. I think the boat was a...
"...HOUR P.A ratings..." What does that mean ?? CMD's HO rating states 12% at WOT and 500 hours per year, Volvo's equivalent rating (R5) states 8%...
Not suggesting that Cummins is a bad motor but: 8.3 L, 600 hp @ 3,000 rpm.....10.8 L, 715 hp @ 2,500 rpm.....Hmmmm Karl2
Sounds like you are looking for something that does not exist. A flat, 100-200 hp, turbo charged diesel would carry with it some considerable...
Volvo's D3 is a tad under 21" from crank shaft center to top of motor. Yanmar's BY series 21.5" from the crankshaft center to the top of the...
Does anyone have a current e-mail address for the head of DOT ? This product will end the dependence on foreign oil - He needs to know. Karl2
Lease/Rent a 40' displacement boat with twin 150 hp or so IB swinging 28-29" wheels. Using I/O power for this job is a recipe for down-time...
The D4-225 is, today, mostly used in commercial applications. The pleasure ratings for the D4 is 260 and 300 hp. Karl2
I maintain that in the context of the question from the original post the relationship between exhaust pressure (Before the turbine) and intake...
Have a copy of Mr. Bell’s book and I agree, well written and a wealth of information. I have enjoyed it immensely. When I buy and turbo charge my...
Marine Nut, Pressure on intake side vs exhaust pressure...Sorry if this sounds "political" but in this context the two has nothing to do with...
7-10%, you are correct. There are no current production engines to do this comparison with but I dusted off some old Volvo spec sheets I have:...
The marine gas engines are completely reliant on what the automotive industry does. So, emissions, fuel economy, etc. etc. are the drivers. It...
Based on the data in your post (28' and 9,500 lbs) you are looking at 35 to 37 mph WOT swinging A7 or A8 props. If you can provide deadrise at...
The engines will be just fine @ 3700 Karl