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11-06-2005, 06:58 PM
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#1
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Registered User
Country: United kingdom
Location: West Sussex
Occupation: Grease Monkey
Interests: Makin my boat faster!
Boat name: S.B Racing
Boat make: Ocke mannerfelt canopied B23 / Zapcat
Engines: Merc 200XS Gen 2 / Tohatsu 50
Cruising area: littlehampton/Southampton
Join Date: Jan 2005
Location: West Sussex
Posts: 2,656
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boat handling on a p21
put the p 21 tandem in the water today for the first time ! goes well! but when get to about 55 60 it leans to the left big time and stays there! My engines offset 1.5 inches to the right and the battery and trim pump are also on the right. Has anyone encountered this before? Its strange because i thought being a tandem it wouldnt lean like this and if anyhting it would lean to the right with the weight? HELP its really annoying!
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Class 3C Mono EPA National speed record holder 95.35 mph Avg!
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11-06-2005, 07:15 PM
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#2
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Registered User
Join Date: Mar 2004
Posts: 5,724
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I reckon you have too much offset and/or engine isn't fitted exactly vertical.?
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11-06-2005, 07:33 PM
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#3
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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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trim it out
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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11-06-2005, 07:36 PM
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#4
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Registered User
Country: United kingdom
Location: West Sussex
Occupation: Grease Monkey
Interests: Makin my boat faster!
Boat name: S.B Racing
Boat make: Ocke mannerfelt canopied B23 / Zapcat
Engines: Merc 200XS Gen 2 / Tohatsu 50
Cruising area: littlehampton/Southampton
Join Date: Jan 2005
Location: West Sussex
Posts: 2,656
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You reckon trimming it out will sort it out jon? i did trim it out didnt seem to make any difference??
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Class 3C Mono EPA National speed record holder 95.35 mph Avg!
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11-06-2005, 07:40 PM
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#5
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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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I'm sure it will, if you have it trimmed with negative trim, when you turn up the wick (open the throttle) it'll lay over on the port side like a bastud, you wanna be running with neutral, or positive trim to keep it level 'in roll'.
it will also (as will all boats) lean heavily into the wind, ie, if there's a fair breeze blowing from your left hand side, the boat will lean to port, and visa-versa.
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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11-06-2005, 09:53 PM
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#6
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Registered User
Country: US
Location: Virginia
Interests: Quiet desperation
Boat name: A Little Noisy
Boat make: Excalibur 24
Engines: Express Racing 525
Cruising area: Mobjack Bay (where?)
Join Date: Mar 2004
Location: Virginia
Posts: 1,974
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I had a Ring 20 that did exactly the same thing when trimmed in.
Was fine when trimmed out.
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11-06-2005, 09:55 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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yup, do it in a Ring, and you're asking for a nice 180 hook!
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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11-06-2005, 10:03 PM
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#8
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Registered User
Country: US
Location: Virginia
Interests: Quiet desperation
Boat name: A Little Noisy
Boat make: Excalibur 24
Engines: Express Racing 525
Cruising area: Mobjack Bay (where?)
Join Date: Mar 2004
Location: Virginia
Posts: 1,974
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Never had the pleasure of that experience but then again I only used the boat twice; the wife HATED it.
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11-06-2005, 11:02 PM
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#9
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Registered User
Join Date: Mar 2004
Posts: 472
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my ring does the same in the wind but i get it back level with the trim tabs.
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boat less
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12-06-2005, 03:13 PM
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#10
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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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how high is your engine? where is your prop shaft in relation to the bottom of the boat?
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12-06-2005, 07:02 PM
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#11
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Registered User
Country: United kingdom
Location: West Sussex
Occupation: Grease Monkey
Interests: Makin my boat faster!
Boat name: S.B Racing
Boat make: Ocke mannerfelt canopied B23 / Zapcat
Engines: Merc 200XS Gen 2 / Tohatsu 50
Cruising area: littlehampton/Southampton
Join Date: Jan 2005
Location: West Sussex
Posts: 2,656
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My propshaft is about 1.5 to 2 inches below the bottom of the boat! Wot john said is prob rite about trimming it out coz i couldnt trim it to much because me bow tank aint working yet and the bow was trying to flap abit!
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Class 3C Mono EPA National speed record holder 95.35 mph Avg!
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12-06-2005, 07:42 PM
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#12
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Registered User
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer
Join Date: Mar 2004
Location: Weston Super Mare
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thats ok then. i was wondering because i believe having the prop too low in the water would give the same effect
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12-06-2005, 08:17 PM
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#13
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Registered User
Country: United kingdom
Location: West Sussex
Occupation: Grease Monkey
Interests: Makin my boat faster!
Boat name: S.B Racing
Boat make: Ocke mannerfelt canopied B23 / Zapcat
Engines: Merc 200XS Gen 2 / Tohatsu 50
Cruising area: littlehampton/Southampton
Join Date: Jan 2005
Location: West Sussex
Posts: 2,656
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do you think thats about the rite height with 6inche set back or do you think i could go higher? the engines not over revving? it going to about 6200rpm?oh its an xr2?
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Class 3C Mono EPA National speed record holder 95.35 mph Avg!
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12-06-2005, 08:27 PM
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#14
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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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if you have a bullet box then theres no reason why you couldnt raise the motor however that may effect the holeshot and handling. i'd try it again at same height but trim out more before raising engine.
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12-06-2005, 08:30 PM
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#15
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Registered User
Country: United kingdom
Location: West Sussex
Occupation: Grease Monkey
Interests: Makin my boat faster!
Boat name: S.B Racing
Boat make: Ocke mannerfelt canopied B23 / Zapcat
Engines: Merc 200XS Gen 2 / Tohatsu 50
Cruising area: littlehampton/Southampton
Join Date: Jan 2005
Location: West Sussex
Posts: 2,656
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Yeah ive got a bullet box! Hole shot????? When i said i couldnt trim it i meant only in those conditions! I had it trimmed out along way when we went up river for a while and it only went to 6200 then!
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Class 3C Mono EPA National speed record holder 95.35 mph Avg!
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12-06-2005, 08:38 PM
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#16
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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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hole shot as in out of the hole. its when you are sat idleing and then floor it. the higher the engine the more prop slip you get. and the longer it takes to get out of the hole
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12-06-2005, 08:40 PM
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#17
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Registered User
Country: United kingdom
Location: West Sussex
Occupation: Grease Monkey
Interests: Makin my boat faster!
Boat name: S.B Racing
Boat make: Ocke mannerfelt canopied B23 / Zapcat
Engines: Merc 200XS Gen 2 / Tohatsu 50
Cruising area: littlehampton/Southampton
Join Date: Jan 2005
Location: West Sussex
Posts: 2,656
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Oh got ya!! well i havent got any slip at the mo! I thought that xr2's liked abit of slip anyway?? ive got a manual jack plate so raising wouldnt be a prob anyway!
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Class 3C Mono EPA National speed record holder 95.35 mph Avg!
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12-06-2005, 08:46 PM
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#18
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Registered User
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer
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try raising it up 1/2" then. I think XR2's can rev to 7000rpm but i wouldnt want to go much more.
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12-06-2005, 08:48 PM
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#19
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Registered User
Country: UK
Location: Weston Super Mare
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Jon, what was it you said about setback??? something about for every 4" you go back you need to go up an 1" or sommat
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12-06-2005, 08:59 PM
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#20
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Registered User
Country: United kingdom
Location: West Sussex
Occupation: Grease Monkey
Interests: Makin my boat faster!
Boat name: S.B Racing
Boat make: Ocke mannerfelt canopied B23 / Zapcat
Engines: Merc 200XS Gen 2 / Tohatsu 50
Cruising area: littlehampton/Southampton
Join Date: Jan 2005
Location: West Sussex
Posts: 2,656
|
Yeah i used to run my old xr2 at 6500 constant! Cheers rob i'll try bringing it up 1/2 inch and see wot happens! the handling felt good (apart from the leaning) where it was so so i think i could go abit higher!
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Class 3C Mono EPA National speed record holder 95.35 mph Avg!
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