Classic SeaCraft Community  

Go Back   Classic SeaCraft Community > General Discussion > Performance

Notices

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 10-02-2007, 11:12 AM
riprunner riprunner is offline
Senior Member
 
Join Date: Dec 2004
Posts: 220
Default Re: 400 hp Mercury diesel outboard is real!

And they are supposed to get thier best fuel economy at
90%+ throttle.
Reply With Quote
  #12  
Old 10-02-2007, 02:56 PM
Snookerd Snookerd is offline
Founding Father
 
Join Date: Feb 2002
Location: Bradenton, FL.
Posts: 2,658
Default Re: 400 hp Mercury diesel outboard is real!

Quote:
Quote:

Who you bullshi tting ?. Your '23 just wants to feel water
I

Did I hear someone say "beyatch slap"...
Isn't it ice skating time up there by his river estate?
__________________
Snookerd
Reply With Quote
  #13  
Old 10-02-2007, 06:30 PM
NoBones NoBones is offline
Pooh Bah
 
Join Date: Apr 2004
Location: Area 442 Somewhere in Florida
Posts: 3,699
Default Re: 400 hp Mercury diesel outboard is real!

Ugh boy,
I'm stayin outta this one.
Otto, Finster and myself are still in the closet
See ya, Ken
__________________
See ya, Ken ©
Reply With Quote
  #14  
Old 10-02-2007, 06:55 PM
Finster Finster is offline
Senior Member
 
Join Date: Nov 2002
Location: Little Egg Harbor, NJ
Posts: 1,855
Default Re: 400 hp Mercury diesel outboard is real!

Quote:
Otto, Finster and myself are still in the closet
Keep me outta this one. I at least used mine one season before I ripped it apart.

And becarefull using the phrase "are still in the closet", thats just giving Don and Chuck fuel for the fire. All we'll be hearing now is Sears catalog this, Sears catalog that. And Don will obviously come up with something completely faggy, as everyone knows he's the one that is accually in the closet. [img]/forum/images/graemlins/tongue.gif[/img]

And Otto, thats too much motor for you, you'll hit rocks.
__________________
http://lecharters.com

'76 23 SC CC I/O
'86 20 Aquasport 200
'98 15 Boaton Whaler Dauntless
There's more but w/e
Reply With Quote
  #15  
Old 10-03-2007, 12:52 AM
Bushwacker Bushwacker is offline
Senior Member
 
Join Date: Feb 2007
Location: N. Palm Beach, Fl.
Posts: 2,456
Default Re: 400 hp Mercury diesel outboard is real!

Quote:
I bet it can suck some fuel too..
That Allison gas turbine was originally used on the Army's Kiowa helicopter; it's a low compression 1960's vintage design. Merc version doesn't look like it has any heat recovery devices on exhaust, so BSFC is probably 0.7 or higher (a good diesel is about .35). That would translate to a fuel flow, at the 400 hp rating, of over 40 gph! At part power it will be even less efficient!

In the mid 60's, Pratt & Whitney developed a waterjet for use with the 650 hp PT6 gas turbine for use in river patrol boats in Vietnam. They put one in a 32' Formula! My neighbor ran the camera boat they used to get some PR shots of it, a 32' Rybovitch w/twin 500 hp Holman-Moody engines. Said he could just barely stay with it with the throttles firewalled. What impressed him most was that it was almost silent - all he could hear was a slight whistle. He said it did run out of gas pretty quick!

Latest PT6 is rated up to 1200 hp, so you could have some fun with that rig if you could find a water jet that could handle it!
__________________
'72 SeaFari/150E-Tec/Hermco Bracket, owned since 1975.
http://i188.photobucket.com/albums/z...Part2019-1.jpg
Reply With Quote
  #16  
Old 10-03-2007, 09:31 PM
bigeasy1 bigeasy1 is offline
Senior Member
 
Join Date: Jul 2006
Location: western massachusetts
Posts: 1,048
Default Re: 400 hp Mercury diesel outboard is real!

I'm getting me one of these.You salt water guys can be out to the canyons in a few minutes.





Jet Boat: F-4 Phantom II 25,000 HP

The Phantom II is being built for USMSG as a promotional tool by Thriller Powerboats of Florida. Thriller Powerboats manufacturers U.S.C.G. certified 43 passenger high-speed catamarans for the tour industry in addition to a Fishing, Poker Run and Sport Commuter model.

The Thriller Phantom II is a modified version of the Thriller "FastMover" poker run boat. This 55 foot catamaran is powered by twin General Electric J-85 fighter-jet engines with full military afterburners. These engines deliver over 12,000 pounds of thrust, equating to more than 25,000 horsepower. The vessel has all state-of-the-art electronic equipment and it sports a military paint scheme incorporating the insignias of all U.S. Military Services and the logos of our Sponsors whose help and support makes this vessel's construction and promotional campaign possible.

The Phantom II will be displayed at air shows, car shows, major sporting events, and other large public gatherings. It will also make demo speed runs and be on display at boat shows, powerboat races, and other major in-water events. NVF and USMSG merchandise such as T-shirts, hats, posters, calendars, coffee cups, DVD's, etc. will be sold at all events attended by the Phantom II.

As part of our upcoming television show we've installed two high definition time-lapse cameras to capture all the day-to-day activity surrounding the construction of this unique and amazing vessel. Between the hours of 8:00am and 4:30pm (ET) each camera continuously uploads a high-def frame to our servers every five seconds. To view this stream of live images, yourself, please click on one of the following links:

Please view this content on the USMSG Member's Website


We've also installed two state-of-the-art high definition webcams to provide our member supporters with live video (and audio) of not-only the daily activities here at Port Fierce but also live engine/systems testing, in-water sea trials, and public demonstrations once the boat is formally out on tour. Please check our "Events Schedule" page to see what's on the agenda.

Please view this content on the USMSG Member's Website


We're currently in-production, shooting high definition video footage of all milestones and events surrounding this amazing, one-of-a-kind project; including the ongoing technical/engineering problems (and solutions). "How do
we prevent a 1500 degree turbojet afterburner from burning through the fibreglass hull only two inches away?"
It took our friends at NASA to come up with a solution to that one. Numerous clips and articles documenting this "amazing journey" and more will be available soon on the usmsg.org website. Please stay tuned !!



Jet Dragster: F-16 Viper 12,000 HP

The F-16 Thriller Viper is one of the world's fastest jet dragsters. It is a state-of-the-art drag car powered by a General Electric J-85 fighter jet engine with full military afterburner. The engine develops over 6000 pounds of thrust equating to more than 12,000 horsepower. The Viper is capable of speeds exceeding 350 miles per hour.

With a thunderous roar and 30 feet of flame and smoke from it's afterburner The Viper is a definite thriller for patrons of all ages. It's painted identical to the Thriller Phantom II and both can be displayed or demonstrated together when not racing or otherwise participating at another event.

We'll also be shooting exciting high definition footage of drag racing events and shows attended by the F-16 Viper throughout the summer and into the fall. These ongoing "location videos" will be continuously available to our loyal member supporters via the USMSG Member's Website. Here's a sample, shot recently at the Moroso Motorsports Park in Palm Beach County, Florida.

Please view this content on the USMSG Member's Website
__________________
All this,just for a boat ride
Reply With Quote
  #17  
Old 10-07-2007, 07:54 PM
ScottM ScottM is offline
Dieter Sprockets
 
Join Date: May 2002
Location: Marshfield, MA
Posts: 2,221
Default Re: 400 hp Mercury diesel outboard is real!

Pretty cool but kinda looks like the outboard version of the Elephant Man.
Reply With Quote
  #18  
Old 10-10-2007, 11:25 AM
red20 red20 is offline
Senior Member
 
Join Date: Aug 2004
Location: Boca Raton
Posts: 282
Default Re: 400 hp Mercury diesel outboard is real!

Did you see the show last week on Discovery Channel about the turbine offshore power boat racing team from Pompano Beach. In the show they showed how the salt kills the turbines and cost big $$ to repair. They have short life spans in the salt.

That being said, boy would it by cool to have one.
Reply With Quote
  #19  
Old 10-10-2007, 10:04 PM
RODMAN RODMAN is offline
Senior Member
 
Join Date: Jan 2006
Location: Home Port Chatham
Posts: 161
Default Re: 400 hp Mercury diesel outboard is real!

That engine is the Allison T63-A-5A.It was used in the Bell OH-6A helocopter,The same size engine can be rated from 252 shp to 650 shp.I rather go with 650shp,you know-horsepower to weight ratio- (old job of mine,you would not believe the whine,heat and noise they make)
Reply With Quote
  #20  
Old 10-10-2007, 11:39 PM
Fr. Frank Fr. Frank is offline
Senior Member
 
Join Date: Oct 2003
Location: Shalimar, Florida
Posts: 2,265
Default Re: 400 hp Mercury diesel outboard is real!

Quote:
salt kills the turbines and cost big $$ to repair. They have short life spans in the salt.
The problem is to keep them from ingesting salt spray. This can be done with a double baffled air cleaner, but it does restrict air flow by up to 20%. So max hp might be only 520 with air cleaners. TBO would still be reduced... say only 2500 hours TBO instead of the normal 5000 at 500 shaft horsepower.
Global Security Inc. says this turbine is available from 285 to 785 SHP, depending on configuration and application, although original Rolls Royce specs called for a single power rating of 700 SHP. This turbine engine was also used to power the 44' British coastal/riverine gunboats in the early 80's through the end of the century, in a 650 hp twin engine setup burning JP4. That's where the idea for a double-baffled air cleaner comes from.

Oh yeah, there's a warning not to run the engine at greater than 110% power for more than 10 minutes because of instances of catastrophic heat-related shaft failure.

Ain't the internet wonderful.
__________________
Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.

Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!

Currently without a SeaCraft
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:33 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
All original content © 2003-2013 ClassicSeacraft