You're the experts - Suggestions on Diesel Go-Fast...
01-05-2010, 06:22 AM
#213
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01-05-2010, 06:41 AM
#214
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Hey Joe wanna go for a ride in the gun tub?
P.S. I gone to the Bonin Islands tomorrow finally..... be back late this month or early next month. Got a hot date with a pair of brand spanking new 6CTAs
Last edited by 29Firefox; 01-05-2010 at 06:57 AM. Reason: more info
01-08-2010, 12:43 PM
#217
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I'm suprised you are not talking to Inovations and A. Mastrey...
If your working on a Navy project, Inovations has been doing the Spec war boat engines for over 27+ years...and have been working on the Yanmar 420's and a number of diesel projects and have a lot of R&D in them. They have tweeked the 420's for a number of applications. And the Navy also use the 470 Caterpillar on there Ribs that are running 55+mph. With all the work they have been doing in the Spec war applications, they will have the most experiance for what you are looking to do....the old 40' V-hull spec boats weight in at just under 15k with everything minus souls on board and can withstand air drops...there are a number of companys today that have a 36 to 42' RIB boats build for just that mission with diesel power....Willard in Ca. have a number of these boats, you should be looking at there hulls along with Zodiacs C7. You can also look into the hull design on the Mark V....its a 80+ footer with Diesels....and has been very succesufull....and runs 60+.
Also you should go to the goverments yearly spec war shows...I don't know if I still have the info on a 40' boat that was there last year but its a great spec war boat with a diesel application and got a lot of attention. There is also a MACC Conf. every year at Little Creek were companys come out to show there R&D for new applications. These companys have years of testing for the stress these boats will be under, so if your starting from scratch....you might want to look into what these companys have found out what works and what dose not work...also you will get some great info from the guys that have been running the old 40's at Dam Neck. Inovations has been working on going to diesels in the 40's for a while.....
With them bringing back the River Rats ....they will be looking for newer and better 25' to 30' boats for the military also.
Just some input...good luck on the project....
If your working on a Navy project, Inovations has been doing the Spec war boat engines for over 27+ years...and have been working on the Yanmar 420's and a number of diesel projects and have a lot of R&D in them. They have tweeked the 420's for a number of applications. And the Navy also use the 470 Caterpillar on there Ribs that are running 55+mph. With all the work they have been doing in the Spec war applications, they will have the most experiance for what you are looking to do....the old 40' V-hull spec boats weight in at just under 15k with everything minus souls on board and can withstand air drops...there are a number of companys today that have a 36 to 42' RIB boats build for just that mission with diesel power....Willard in Ca. have a number of these boats, you should be looking at there hulls along with Zodiacs C7. You can also look into the hull design on the Mark V....its a 80+ footer with Diesels....and has been very succesufull....and runs 60+.
Also you should go to the goverments yearly spec war shows...I don't know if I still have the info on a 40' boat that was there last year but its a great spec war boat with a diesel application and got a lot of attention. There is also a MACC Conf. every year at Little Creek were companys come out to show there R&D for new applications. These companys have years of testing for the stress these boats will be under, so if your starting from scratch....you might want to look into what these companys have found out what works and what dose not work...also you will get some great info from the guys that have been running the old 40's at Dam Neck. Inovations has been working on going to diesels in the 40's for a while.....
With them bringing back the River Rats ....they will be looking for newer and better 25' to 30' boats for the military also.
Just some input...good luck on the project....
Last edited by MANITIE; 01-08-2010 at 03:04 PM.
02-18-2010, 08:19 PM
#219
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Gents,
Our DNA is in moderate speed outboard boats (think 50 knot top speed).
We have a requirement for a 42' x 10' deep-vee, monohull with diesel power. We (obviously) will be making the hull out of marine-grade aluminum alloy but are starting today to look at powering the hull.
What I would ask of you folks is the following:
1) If you had to have diesel power and needed to push this boat 60-65 knots (70 mph+) What powerplant would you use and how would you get that power to the water?
2) Our general group of naval architects and engineers will all tell me that they have the knowledge/expertise to do this project although none of them specialize in high-speed boats.
I'm sure that there are some specialists in high-speed design for both hulls and propulsion systems - any suggestions would be helpful.
3) Stepped hull or no steps?
This boat because of its mission profile will be heavier than the hulls you guys are used to. For a 42' will be looking at @ 12,000lbs w/o power or fuel.
Lastly, we're using the 60 knot number as a minimum - looooove to go faster.
Our DNA is in moderate speed outboard boats (think 50 knot top speed).
We have a requirement for a 42' x 10' deep-vee, monohull with diesel power. We (obviously) will be making the hull out of marine-grade aluminum alloy but are starting today to look at powering the hull.
What I would ask of you folks is the following:
1) If you had to have diesel power and needed to push this boat 60-65 knots (70 mph+) What powerplant would you use and how would you get that power to the water?
2) Our general group of naval architects and engineers will all tell me that they have the knowledge/expertise to do this project although none of them specialize in high-speed boats.
I'm sure that there are some specialists in high-speed design for both hulls and propulsion systems - any suggestions would be helpful.
3) Stepped hull or no steps?
This boat because of its mission profile will be heavier than the hulls you guys are used to. For a 42' will be looking at @ 12,000lbs w/o power or fuel.
Lastly, we're using the 60 knot number as a minimum - looooove to go faster.
Thank you,
costaricaboats
