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Kid Mex.
05-08-2004, 01:19 PM
I am going to make this thread kinda vague as not to disclose the manufacturer nor the buyer of this boat. But my buddy needs some advise. My friend is purchasing a 27-29' cat with twin Scorpion motors with dual hydrolic steering and xr drives running 26 pitch 4 blade props, tunnel tab,. The boat is open bow and wieghs about 4,600-4,800 pounds. How fast should this boat be running.
Blown 472
05-08-2004, 01:52 PM
Originally posted by Kid Mex.
I am going to make this thread kinda vague as not to disclose the manufacturer nor the buyer of this boat. But my buddy needs some advise. My friend is purchasing a 27-29' cat with twin Scorpion motors with dual hydrolic steering and xr drives running 26 pitch 4 blade props, tunnel tab,. The boat is open bow and wieghs about 4,600-4,800 pounds. How fast should this boat be running.
68.675 mph:D
HCS
05-08-2004, 02:02 PM
Originally posted by Blown 472
68.675 mph:D
Is that on a GPS?
Tom Brown
05-08-2004, 02:04 PM
Originally posted by Kid Mex.
How fast should this boat be running.
The throttles should be at idle in no wake zones.
HCS
05-08-2004, 02:05 PM
Originally posted by Tom Brown
The throttles should be at idle in no wake zones.
Like 5mph.
Tom Brown
05-08-2004, 02:07 PM
Sounds right.
HCS
05-08-2004, 02:18 PM
He should have a pretty good idea how fast this boat should go then.
Blown 472
05-08-2004, 02:20 PM
Originally posted by HARDCORE-SKI
He should have a pretty good idea how fast this boat should go then.
If not, thats ok, we didn't build it.:D
Tom Brown
05-08-2004, 02:22 PM
I'd say it should go as fast as the salesman said it would go so you've definitely got a good case there, Kid Mex.
1stepcloser
05-08-2004, 02:27 PM
Originally posted by Kid Mex.
My friend is purchasing a 27-29' cat with twin Scorpion motors with xr drives running 26 pitch 4 blade props.
How fast should this boat be running.
Assuming 5100 RPM and a 1.5:1 gear ratio, about 75.3 MPH (http://www.boatpropellers.com/propcalc.html) :)
burtandnancy
05-08-2004, 04:28 PM
1 step; what did you use as a slip factor?
Dr. Eagle
05-08-2004, 04:29 PM
Originally posted by Blown 472
68.675 mph:D
Don't forget to correct for the earths rotation!
Jordy
05-08-2004, 04:31 PM
Originally posted by Dr. Eagle
Don't forget to correct for the earths rotation!
As well as the position of the moon in the lunar cycle. ;) :D
phebus
05-08-2004, 04:32 PM
Originally posted by burtandnancy
1 step; what did you use as a slip factor?
By using the calculator, and leaving the slip factor blank, it comes up with 10%
twistedpair
05-08-2004, 04:32 PM
Does it have Thru-Hulls?:D
Dr. Eagle
05-08-2004, 04:33 PM
Originally posted by jordanpaulk
As well as the position of the moon in the lunar cycle. ;) :D
Ooohhhhh good catch Jordy...:D
Jordy
05-08-2004, 04:34 PM
Originally posted by twistedpair
Does it have Thru-Hulls?:D
Dammit, I dropped the ball on that one. With thru hull exhaust add 8 mph. (4 mph per engine) :D :D
Dr. Eagle
05-08-2004, 04:35 PM
Originally posted by jordanpaulk
Dammit, I dropped the ball on that one. With thru hull exhaust add 8 mph. (4 mph per engine) :D :D
Depending on the amount of water circulating through the engine...;)
mickeyfinn
05-08-2004, 04:41 PM
Not a pump boat so add another 8 or 10.
Dusty Times
05-08-2004, 05:00 PM
The hull manufacture matters alot but I would guess 75 to 90 depending.
I would only trust those speeds to a few builders though.:confused:
Kilrtoy
05-08-2004, 06:05 PM
With thru hull exhaust add 8 mph. (4 mph per engine)
See what happens when I go to the lake and not lurk on ***boat, Some beat me to my own SHIT....
actually the correct version is 4 to 10 single engine 2 to 5
Kid Mex.
05-09-2004, 12:14 AM
Originally posted by Tom Brown
I'd say it should go as fast as the salesman said it would go so you've definitely got a good case there, Kid Mex.
That is why I asked you guys for your opinion! If I were to trust a salesmans word I wouldn't be asking this question!
Kid Mex.
05-09-2004, 12:15 AM
Originally posted by Dusty Times
The hull manufacture matters alot but I would guess 75 to 90 depending.
I would only trust those speeds to a few builders though.:confused:
Thanks for your honest answer
Jordy
05-09-2004, 01:23 AM
Originally posted by Kilrtoy
With thru hull exhaust add 8 mph. (4 mph per engine)
See what happens when I go to the lake and not lurk on ***boat, Some beat me to my own SHIT....
actually the correct version is 4 to 10 single engine 2 to 5
I was splitting the 3-5 difference and calling it 4. Don't worry bud, I was lookin' out for ya. :D
Kilrtoy
05-09-2004, 01:45 AM
I was splitting the 3-5 difference and calling it 4. Don't worry bud, I was lookin' out for ya
Hey FOCKER
You gonna be in town friday night for OP6?
If so i'd like to buy you a HEFE at Baily Bros.
Jordy
05-09-2004, 01:54 AM
Originally posted by Kilrtoy
[B
Hey FOCKER
You gonna be in town friday night for OP6?
If so i'd like to buy you a HEFE at Baily Bros. [/B]
Absolutely. Looking forward to partying with all y'all again. :D
Signed,
Focker. :D