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13-04-2010, 07:44 PM
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#1
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Registered User
Country: Spain
Location: Mallorca
Occupation: Retired
Interests: Boats, boats and boats
Boat name: Patriot and Forca
Boat make: Phantom 21. Falcon Bonito 36
Engines: 200hp Mariner. 2 x GM 6.5 Twin Turbo Diesels
Cruising area: The Med
Join Date: Nov 2006
Location: Mallorca
Posts: 716
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Just want to pick the real brains on here
I know that curiosity killed the cat but cats don’t like water anyway. I was just wondering if there would be an interesting benefit from changing the heavy inboards, in the 36, to maybe triple outboards. Thinking along the lines of, Fuel consumption, power to weight and more internal space. Also interested in ideas about setting these engines aft of the transom.
I know many of you guys have some very clever ideas, please let me hear some of them.
Thanks in advance.
pete
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13-04-2010, 08:38 PM
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#2
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Registered User
Country: Spain
Location: Mallorca
Occupation: Marine Service Manager
Interests: Boats,bikes and rally cars
Boat make: Phantom 21
Engines: Merc 135hp/merc XR2
Cruising area: Balearics
Join Date: Jun 2009
Location: Mallorca
Posts: 56
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yeh mate liking that idea!!!!! stick them on a gill bracket, you'll be well away.
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14-04-2010, 08:33 AM
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#3
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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To be able to have any idea I would have a look round for a similar weight hull with clip ons and see how it goes and with how much HP - failing that get the boat weighed, work out the weight saving, comparative horse-powers and what performance you are looking for.
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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14-04-2010, 08:45 AM
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#4
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Registered User
Location: hayling island
Boat name: snow monkey
Boat make: extreme 24
Engines: mercruiser 6.2
Join Date: May 2004
Location: hayling island
Posts: 2,082
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i know there is a sunseeker sportfisher at northney marina at the moment,i think its 37/38 feet,with triple 300 evinrudes on,its brand new and they are trying to get 50 knots out of it
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19-04-2010, 02:17 PM
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#5
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Registered User
Country: Spain
Location: Mallorca
Occupation: Retired
Interests: Boats, boats and boats
Boat name: Patriot and Forca
Boat make: Phantom 21. Falcon Bonito 36
Engines: 200hp Mariner. 2 x GM 6.5 Twin Turbo Diesels
Cruising area: The Med
Join Date: Nov 2006
Location: Mallorca
Posts: 716
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Hi Cookie,
Displacement is recorded as 4.445 Ton. I will get her weighed as soon as it´s possible. Obviously this includes both engines and fitted out as a leisure boat.
I thought there would have been more suggestions about this option, it might make an interesting boat?
Pete
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19-04-2010, 03:51 PM
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#6
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Registered User
Country: England
Location: Surrey
Interests: boats/bodybuilding/my boys
Boat name: Scarab Racing
Boat make: Scarab 27
Engines: Yanmar 315
Cruising area: South coast
Join Date: Jun 2008
Location: Surrey
Posts: 200
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Hi Pete
Check out the link
http://www.boatshed.com/Bonito_37'-boat-71745.html
It has been done on your boat, have a look
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19-04-2010, 08:05 PM
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#7
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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That looks like the old 'Fly Navy' boat, it wasn't very quick. belonged to Nigel Williams.
http://www.boatmad.com/forum/showthr...&threadid=1124
__________________
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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20-04-2010, 11:02 PM
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#8
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Registered User
Country: new zealand
Location: hamilton
Occupation: student
Interests: ski racing
Boat name: Anti Cyclone
Boat make: Light weight bullet 1850
Engines: Evunrude 225 Etec H.O
Cruising area: lakes and riverrs in the north island
Join Date: Jan 2009
Location: hamilton
Posts: 37
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Old aussie ski race boat
Heres a pic of an old aussie ski racing boat. running tripple 330hp mercs.
and heres a video of the last race it did.
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21-04-2010, 05:13 AM
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#9
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living the dream
Country: Fl. USA
Location: Where the sun never dies
Occupation: Life Artist
Interests: BOAT RACING
Boat name: i call her baby
Boat make: Aero-tek
Engines: a lot of horses
Cruising area: WW
Join Date: Apr 2010
Location: Where the sun never dies
Posts: 453
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4.5 tons....i would stay with I/O if u want to keep the speed/fun factor !!!!!!
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Not as bad as you think i am, just different !
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23-04-2010, 04:24 PM
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#10
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Registered User
Country: Spain
Location: Mallorca
Occupation: Retired
Interests: Boats, boats and boats
Boat name: Patriot and Forca
Boat make: Phantom 21. Falcon Bonito 36
Engines: 200hp Mariner. 2 x GM 6.5 Twin Turbo Diesels
Cruising area: The Med
Join Date: Nov 2006
Location: Mallorca
Posts: 716
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All points taken. I was thinking of 3 outboards, not only 2. I wouldn´t think that 2 would produce that much power, for the size.
Another consideration is, the i / O drives are rated at 260hp, so any improvement on that, considering the added weight reduction, surely should make a difference.
Is this correct?
Pete
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23-04-2010, 05:25 PM
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#11
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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Quote:
Originally Posted by Peterjfinch
All points taken. I was thinking of 3 outboards, not only 2. I wouldn´t think that 2 would produce that much power, for the size.
Another consideration is, the i / O drives are rated at 260hp, so any improvement on that, considering the added weight reduction, surely should make a difference.
Is this correct?
Pete
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Triple Verado or the big V8 Yams could go well, but you're getting near a pair of inboard sort of price then maybe? Interesting costing exercise and you get an aft cabin where the engine room was!
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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26-04-2010, 03:46 PM
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#12
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Registered User
Country: Spain
Location: Mallorca
Occupation: Retired
Interests: Boats, boats and boats
Boat name: Patriot and Forca
Boat make: Phantom 21. Falcon Bonito 36
Engines: 200hp Mariner. 2 x GM 6.5 Twin Turbo Diesels
Cruising area: The Med
Join Date: Nov 2006
Location: Mallorca
Posts: 716
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This has been my thoughtd exactly, Kookee,
I would like to have a boat, bigger and more versatile than patriot. To take the other half for a weekend etc. Patriot will always be Patriot and on the trailer, ready for action. Just wanted to test the knowledge of those who know. I am going to look at a pair of big diesels, in the next few weeks. Came out od a 40ft pleasure boat. Can´t help thinking that the outboard choice would work well on 36ft. Given the weight reduction, the weight transfer to the transom, not in front of it and also I can then move the fuel tanks further aft.
Trouble is, I don´t know enough to make the final decision.
I would like to lose some weight (not personaly) and help whatever goes into her. There is a lot that can be reduced. The engine hatch alone weighs half a ton (figure of speach). Have also considered replacing the topsides, maybe something a little less "Fugly".
Any ideas are more than welcome.
Thanks again.
Pete
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26-04-2010, 04:48 PM
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#13
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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I think whatever you do you need to go into it with the certainty it's going to work - I'm sure everyone knows someone that thrown a lot of money into making a boat go slower than it started or at least fallen a long way short of the target - sometimes it's cheaper and easier to buy something done that meets all of your aspirations.
But where would the fun be in that! :-)
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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26-04-2010, 07:57 PM
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#14
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living the dream
Country: Fl. USA
Location: Where the sun never dies
Occupation: Life Artist
Interests: BOAT RACING
Boat name: i call her baby
Boat make: Aero-tek
Engines: a lot of horses
Cruising area: WW
Join Date: Apr 2010
Location: Where the sun never dies
Posts: 453
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CG, is very importent to any boat , so i would not move weight around ( like fuel tanks ) i also would not consider outboards for a 36 foot cat.
Unless u wanna go 60 MPH max ??????
Upgrade the drives to IMCO or even XR's ( even # 4 /5 Speedmasters ) and stick some nice 650 + HP engines in it ,,,it will go beond 110MPH safe and u will have fun, if build trouble free even more fun !!!!!!!!!
__________________
Not as bad as you think i am, just different !
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27-04-2010, 08:28 AM
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#15
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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Quote:
Originally Posted by DAREDEVIL
CG, is very importent to any boat , so i would not move weight around ( like fuel tanks ) i also would not consider outboards for a 36 foot cat.
Unless u wanna go 60 MPH max ??????
Upgrade the drives to IMCO or even XR's ( even # 4 /5 Speedmasters ) and stick some nice 650 + HP engines in it ,,,it will go beond 110MPH safe and u will have fun, if build trouble free even more fun !!!!!!!!!
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If I'm right I think that might stretch the budget ever so slightly!
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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27-04-2010, 02:14 PM
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#16
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Registered User
Country: Spain
Location: Mallorca
Occupation: Retired
Interests: Boats, boats and boats
Boat name: Patriot and Forca
Boat make: Phantom 21. Falcon Bonito 36
Engines: 200hp Mariner. 2 x GM 6.5 Twin Turbo Diesels
Cruising area: The Med
Join Date: Nov 2006
Location: Mallorca
Posts: 716
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Spot on Cookee,
I have to save up for a month, to feed Patriot for an afternoon. PS, this one only has one hull, not a cat, but I guess the principle is similar. Looks like the way forward is the 2 big CAT diesels, that I hope to see next week some time. If not, Maybe strat an outboard mount to the transom and beg to borrow some outbourds, to give it a try???
Watch this space.....I think
Cheers everyone. Pete
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