Boatmad.com


Reply
 
Thread Tools Display Modes
 
Old 20-03-2004, 04:37 PM   #1
hello
 

Join Date: Mar 2004
Posts: 2,739
94 Mph

94 MPH

http://www.boatsandoutboards.com/view/F30221

I reckon my boat must do at least a ton then, 110 down hill
__________________

JamesM is offline   Reply With Quote
Old 20-03-2004, 04:48 PM   #2
numbskull
 
Jon Fuller's Avatar
 
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
Dreamers!
__________________

__________________
.

"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
Jon Fuller is offline   Reply With Quote
Old 20-03-2004, 05:08 PM   #3
Registered User
 
phantomc92's Avatar
 
Location: portsmouth
Occupation: car dealer
Interests: basic racing
Boat name: explosion
Boat make: backdraft
Engines: mercury xr2
Cruising area: solent

Join Date: Mar 2004
Location: portsmouth
Posts: 119
physicaly impossible
__________________
whatever floats your boat.....got one again
phantomc92 is offline   Reply With Quote
Old 20-03-2004, 09:32 PM   #4
hello
 

Join Date: Mar 2004
Posts: 2,739
Maybe its fitted with a Ford speedo
JamesM is offline   Reply With Quote
Old 20-03-2004, 10:28 PM   #5
numbskull
 
Jon Fuller's Avatar
 
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
Or searay!
__________________
.

"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
Jon Fuller is offline   Reply With Quote
Old 22-03-2004, 03:29 PM   #6
Registered User
 
termite's Avatar
 
Country: Hampshire
Location: The Solent
Occupation: IT
Boat name: Pepsea
Boat make: Tohatsu 6.6 Rib
Engines: Optimax 150

Join Date: Mar 2004
Location: The Solent
Posts: 205
Dreaming

and another,

http://www.rib.net/forum/showthread....&threadid=4282
termite is offline   Reply With Quote
Old 22-03-2004, 03:58 PM   #7
numbskull
 
Jon Fuller's Avatar
 
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
__________________
.

"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
Jon Fuller is offline   Reply With Quote
Old 22-03-2004, 05:48 PM   #8
hello
 

Join Date: Mar 2004
Posts: 2,739
That must be nearly 1 mph per hp,

Does a bigger swell make you go faster cause going down a big wave is like going down hill?

So, maybe my estimate of 110 was a little on the low side!!!

I reckon in a 20 foot swell with my 260 hp......................
JamesM is offline   Reply With Quote
Old 22-03-2004, 07:45 PM   #9
Registered User
 
Country: Canada
Location: Newfoundland
Interests: Spreading the good word about boats with toobs

Join Date: Mar 2004
Location: Newfoundland
Posts: 173
'slot of it abart.............

'snot 94mph but there is a bloke who reckons on 60kts (thats 66mph for you boy racerz) from 2 x260hp in a 25 Triana. (Nice classic boat though!)

http://www.tmti.net/trianatropica/tropica.htm

EN
Atlantic Xpat is offline   Reply With Quote
Old 22-03-2004, 10:52 PM   #10
Registered User
 
Country: uk

Join Date: Mar 2004
Posts: 4
yeah we had a laugh at this
red bull is offline   Reply With Quote
Old 23-03-2004, 04:44 PM   #11
Registered User
 
Country: England
Location: South West
Occupation: Development engineer
Interests: Fast boats
Boat name: Xtreme
Boat make: Bernico 21
Engines: Mercury F1, 300 Drag, XR2 "Fingerported"
Cruising area: South West

Join Date: Mar 2004
Location: South West
Posts: 1,043
What you mean it won't do this speed
I've just part exchanged my 300 drag for this rig.



Cyco
Cyco is offline   Reply With Quote
Old 24-03-2004, 10:09 AM   #12
Registered User
 
termite's Avatar
 
Country: Hampshire
Location: The Solent
Occupation: IT
Boat name: Pepsea
Boat make: Tohatsu 6.6 Rib
Engines: Optimax 150

Join Date: Mar 2004
Location: The Solent
Posts: 205
Look its true jet boats are faster than those with propellors! who was it that doubted a previous post, honestly experts ha!

T

http://cgi.ebay.co.uk/ws/eBayISAPI.d...&category=1296
termite is offline   Reply With Quote
Old 24-03-2004, 10:14 AM   #13
Registered User
 
phantomc92's Avatar
 
Location: portsmouth
Occupation: car dealer
Interests: basic racing
Boat name: explosion
Boat make: backdraft
Engines: mercury xr2
Cruising area: solent

Join Date: Mar 2004
Location: portsmouth
Posts: 119
nice
__________________
whatever floats your boat.....got one again
phantomc92 is offline   Reply With Quote
Old 06-04-2004, 01:40 PM   #14
Registered User
 
termite's Avatar
 
Country: Hampshire
Location: The Solent
Occupation: IT
Boat name: Pepsea
Boat make: Tohatsu 6.6 Rib
Engines: Optimax 150

Join Date: Mar 2004
Location: The Solent
Posts: 205
So is this another 60 mph boat do you think ?

http://cgi.ebay.co.uk/ws/eBayISAPI.d...&category=1296

T
Attached Thumbnails
Click image for larger version

Name:	speedboat.jpg
Views:	476
Size:	20.1 KB
ID:	223  
termite is offline   Reply With Quote
Old 08-04-2004, 11:17 PM   #15
Registered User
 
Burty's Avatar
 
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer

Join Date: Mar 2004
Location: Weston Super Mare
Posts: 6,351
Send a message via AIM to Burty
of course it is! any boat on a trailer is as fast as the vehicle towing it!!!!!!
the OCR boys do around 60mph with 1.8 ltr 130hp engines.
so maybe in a large swell, downhill................................
Burty is offline   Reply With Quote
Old 08-04-2004, 11:42 PM   #16
numbskull
 
Jon Fuller's Avatar
 
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
Well I'm not so sure, a 135hp ford v6/jet in didy speedboat might top 50, and back in 88 a 1.8 OCR B boat ran almost 69mph (Jeff Locock, on Windermere) probably with an old straight six Merc! so it's not completly out of the question.
__________________
.

"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
Jon Fuller is offline   Reply With Quote
Old 09-04-2004, 07:06 AM   #17
Ben
Registered User
 
Ben's Avatar
 
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
94 mph possible but unlikely.

Theoretical top speeds can be easily calculated. Just take max revs X(times) propeller pitch/(divided by) gear ratio X .0094976. Multiply by the inverse of prop slippage (typically 75 -85% for a performance type monohull) and there you have it in mph.

Quick note to Essex Navee from a not quite 'Boy Racer' type - 60 kn is actually 69 mph since 1 knot = 1.15 mph.
__________________
I thought that having more patience was a result of my getting older. Turns out that I just don't give a sh*t.
Ben is offline   Reply With Quote
Old 10-04-2004, 08:54 PM   #18
hello
 

Join Date: Mar 2004
Posts: 2,739
Super unleaded, maybe that his secret!!!!
JamesM is offline   Reply With Quote
Old 10-04-2004, 09:33 PM   #19
numbskull
 
Jon Fuller's Avatar
 
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
Quote:
Originally posted by Ned
Theoretical top speeds can be easily calculated. Just take max revs X(times) propeller pitch/(divided by) gear ratio X .0094976. Multiply by the inverse of prop slippage (typically 75 -85% for a performance type monohull) and there you have it in mph.
So let me get this right, if I put 40" pitch props on my boat, it'll do 100mph!...shit, If I'd known it was as simple as just adding pitch I'd have done it years ago!
__________________
.

"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
Jon Fuller is offline   Reply With Quote
Old 10-04-2004, 09:35 PM   #20
numbskull
 
Jon Fuller's Avatar
 
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
Quote:
Originally posted by Ned
94 mph possible but unlikely.
It would need to be at least 300hp
__________________

__________________
.

"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
Jon Fuller is offline   Reply With Quote
Reply

Thread Tools
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT +1. The time now is 04:53 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×