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22-01-2011, 05:17 PM
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#1
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Registered User
Join Date: Jun 2009
Posts: 670
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bow heavy marshan
moved my fuel out the bow tank to the rear tank and still seems bit heavy up front getting out the hole...will removing my 6" jack plate make it better or worse? ime thinking reducing setback will improve by moving motor forward but am i right...marshan19 btw which are renowned for being nose heavy at the best of times ive dropped the motor back down to below bottom which has helped but need more bow lift without trimming to far out...
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22-01-2011, 06:30 PM
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#2
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Removing setback is moving weight forward, the opposite of what youre trying to do.
How do you mean bow heavy coming out? If the bows not pointing at the sky thats a good thing, no?
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22-01-2011, 07:24 PM
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#3
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Registered User
Country: England
Location: Poole
Interests: Boats/cars
Boat make: Boss 21/Argentinian HotBoat
Engines: Mercury 2.5 Offshore
Cruising area: Poole/Solent
Join Date: Jul 2007
Location: Poole
Posts: 325
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What prop are you running ? sounds like you need a bow lifting prop (high rake),something like a 4 blade trophy.
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22-01-2011, 07:28 PM
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#4
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Registered User
Join Date: Jun 2009
Posts: 670
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Quote:
Originally Posted by Hydrostream
Removing setback is moving weight forward, the opposite of what youre trying to do.
How do you mean bow heavy coming out? If the bows not pointing at the sky thats a good thing, no?
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funny boats these marshans as in its the 1st boat ive owned that seems to not like getting on the plane easy unless your trimmed out a little then its a fine ballance avoiding bad cavitation...just trying to find a more nose up ballance without trim iff you know what i mean..
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22-01-2011, 07:29 PM
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#5
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Registered User
Join Date: Jun 2009
Posts: 670
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Quote:
Originally Posted by maz928
What prop are you running ? sounds like you need a bow lifting prop (high rake),something like a 4 blade trophy.
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running a high 5 atm mate
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22-01-2011, 10:45 PM
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#6
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Registered User
Location: Leicestershire
Occupation: Electrician
Interests: Pointy boats and ribs
Boat make: Rib
Engines: Mercury
Cruising area: south west
Join Date: Feb 2008
Location: Leicestershire
Posts: 113
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You got the 18 i think not the 19 !
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23-01-2011, 10:44 AM
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#7
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Registered User
Country: Guernsey Channel Isles
Location: West Coast
Occupation: Hotelier
Interests: Powerboat racing
Boat name: Vodkatini,Cap Camarat,Easy RiderSuper Rider & Hirrondelle
Boat make: Phantom 21,Jeaneau 925 Avenger19.Lorne Campbell Slipstream Tremlett 21.Tigershark 21
Engines: Volvo 5 litre,Merc 115 Tower,Twin 250 Suzukis and 145 Mercruiser LX
Cruising area: Channel Islands and French coast
Join Date: Jan 2009
Location: West Coast
Posts: 612
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Try some different props
Back in the day the 18 footers raced with bronze four blade cleavers.
You will get more bow lift with a laser then the high five .
Go careful !
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Guernsey - The home of offshore powerboat racing
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23-01-2011, 04:05 PM
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#8
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Registered User
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer
Join Date: Mar 2004
Location: Weston Super Mare
Posts: 6,351
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Ditch the high 5 mate, get yourself a laser or trophy and give that a go first, i wouldnt risk a chopper as i tried one once on a boat like yours and it scared the shit outa me due to the fact that the hull is very narrow
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23-01-2011, 05:14 PM
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#9
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Registered User
Join Date: Jun 2009
Posts: 670
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Quote:
Originally Posted by Burty
Ditch the high 5 mate, get yourself a laser or trophy and give that a go first, i wouldnt risk a chopper as i tried one once on a boat like yours and it scared the shit outa me due to the fact that the hull is very narrow
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cheers matey i will play with props 1st then....narrow... i know these things are like a lolly stick
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23-01-2011, 05:15 PM
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#10
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Registered User
Join Date: Jun 2009
Posts: 670
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Quote:
Originally Posted by jonny h
You got the 18 i think not the 19 !
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other people have said the same but mine is 3" short of 19ft
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24-01-2011, 12:08 PM
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#11
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Registered User
Country: Guernsey Channel Isles
Location: West Coast
Occupation: Hotelier
Interests: Powerboat racing
Boat name: Vodkatini,Cap Camarat,Easy RiderSuper Rider & Hirrondelle
Boat make: Phantom 21,Jeaneau 925 Avenger19.Lorne Campbell Slipstream Tremlett 21.Tigershark 21
Engines: Volvo 5 litre,Merc 115 Tower,Twin 250 Suzukis and 145 Mercruiser LX
Cruising area: Channel Islands and French coast
Join Date: Jan 2009
Location: West Coast
Posts: 612
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Have a look at the bottom of the transom.
If its e V down to the keel its an Old School 18 from the seventies.
If it has got a tunneled out inverted U shape where there could be a keel instead of the V-then its a 19 footer.
I think this was done to allow higher mounting of V6 motors as they came along.
21 foot was a bit of a beast and perhaps the Marshan to have,
but I think the 18 was better then 19
Which one u got then ?
They are all nice boats really
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Guernsey - The home of offshore powerboat racing
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24-01-2011, 01:28 PM
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#12
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sparkyvince
Country: uk
Location: N.kent
Occupation: Electrician
Interests: boats,boats and more boats.
Cruising area: N.kent
Join Date: Mar 2007
Location: N.kent
Posts: 60
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Marshan
Why did Terry Sleap stop producing the Marshans and what happened to the moulds?
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24-01-2011, 05:32 PM
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#13
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Registered User
Join Date: Jun 2009
Posts: 670
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Quote:
Originally Posted by Big Dutch
Have a look at the bottom of the transom.
If its e V down to the keel its an Old School 18 from the seventies.
If it has got a tunneled out inverted U shape where there could be a keel instead of the V-then its a 19 footer.
I think this was done to allow higher mounting of V6 motors as they came along.
21 foot was a bit of a beast and perhaps the Marshan to have,
but I think the 18 was better then 19
Which one u got then ?
They are all nice boats really
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embarrasing as it is heres a rear shot when i missed the tide a year or more ago ....great day though cockeling
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24-01-2011, 05:35 PM
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#14
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Registered User
Join Date: Jun 2009
Posts: 670
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Quote:
Originally Posted by sparkyvince
Why did Terry Sleap stop producing the Marshans and what happened to the moulds?
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think there was more money growing potatoes at the time
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25-01-2011, 09:02 AM
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#15
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sparkyvince
Country: uk
Location: N.kent
Occupation: Electrician
Interests: boats,boats and more boats.
Cruising area: N.kent
Join Date: Mar 2007
Location: N.kent
Posts: 60
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Marshan
I did get wind of him concentrating more on his potatoes rather than his boats.Whatever sells best i suppose.Shame.Does anyone know what happened to the moulds.
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25-01-2011, 01:53 PM
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#16
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Quote:
Originally Posted by baj666
think there was more money growing potatoes at the time
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Probably still is
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26-01-2011, 04:21 PM
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#17
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Registered User
Join Date: Jun 2009
Posts: 670
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Quote:
Originally Posted by jonny h
You got the 18 i think not the 19 !
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just measured the ole girl and its 19ft 7" on top end to end and 19ft 2" from the tip of bow to bottom of V...have to re-measure in sun,i might get 20ft out of it
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26-01-2011, 09:05 PM
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#18
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Registered User
Country: shropshire england.
Location: oswestry
Occupation: Retired
Interests: Yodelling
Boat name: Veni Vidi Vici or Conked
Boat make: G.P.14
Engines: 4h.p. Mercury
Cruising area: Cap de Agde
Join Date: Feb 2009
Location: oswestry
Posts: 1,311
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Quote:
Originally Posted by baj666
just measured the ole girl and its 19ft 7" on top end to end and 19ft 2" from the tip of bow to bottom of V...have to re-measure in sun,i might get 20ft out of it
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sure that aint the other way round
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when in doubt trim outCARPE DIEM
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26-01-2011, 09:16 PM
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#19
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Registered User
Country: Netherlands
Location: Westcoast
Occupation: Farmer
Interests: Marshan Ring Phantom
Boat name: Blue Streak
Boat make: Marshan 18
Engines: Mercury V200 Mercury XR10
Join Date: Sep 2010
Location: Westcoast
Posts: 128
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The marshan 18 is from the early 70's.
Go wellequip, The martian, Hot chocolate
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26-01-2011, 09:17 PM
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#20
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Registered User
Country: Northern Ireland
Location: Bangor Co Down
Occupation: Quantity Surveyor ( Retired )
Interests: Boating & classic speed boats
Boat name: Tremlett 15
Boat make: 1973 Gunning/Tremlett 15' & Ribeye 4.5m )
Engines: 1976 Mercury 500 50hp ( & Yam )
Cruising area: Ireland
Join Date: Dec 2009
Location: Bangor Co Down
Posts: 208
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this may help, also read section ( b )
from the RYA Class 3 rule book PB10/71 ( 1972 )
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