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Old 26-09-2010, 09:16 PM   #1
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help!

how do you stop a phantom 18 "twisting" in rough seas?boat takes off waves but tries to turn itself over as it leaves the wave,running a 26 3 blade chopper come cleaver
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Old 26-09-2010, 09:36 PM   #2
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Steer against it with jabs as you exit, set the boat up better, offset the motor?

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Old 26-09-2010, 10:18 PM   #3
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how do you stop a phantom 18 "twisting" in rough seas?boat takes off waves but tries to turn itself over
New engine to fast for you ? Remember that engines already been for a swim in Coniston
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Old 27-09-2010, 08:14 AM   #4
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No need to offset the motor, engine height and change to an easier prop to drive like a Laser? They will land on the left trimmed in, and it takes quite a bit of seat time to get them to fly truly level.
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Old 30-09-2010, 10:32 PM   #5
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No need to offset the motor, engine height and change to an easier prop to drive like a Laser? They will land on the left trimmed in, and it takes quite a bit of seat time to get them to fly truly level.
It flys fine in calmish seas as I can steer into fine but in very rough seas(morecambe bay)even going slow it just twists off waves)talons back on the water nxt week so il try that.
That was a joke!
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Old 01-10-2010, 12:18 PM   #6
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26 chopper in the rough is a waste of time it's all about the right prop,
just out of interest how fast are you running in the flat with that prop (gps) ?
i asume your motor is a 280,

derek.

(nat champ 18-xr2)
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Old 01-10-2010, 10:45 PM   #7
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26 chopper in the rough is a waste of time it's all about the right prop,
just out of interest how fast are you running in the flat with that prop (gps) ?
i asume your motor is a 280,

derek.

(nat champ 18-xr2)
in the flat its pulling 82 off the rev counter,7k rev counter fitted,motors around 280 tho cant give an actual figure,what prop do you recommend,for the record it runs 82ish with a 22 chopper too
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Old 02-10-2010, 01:08 PM   #8
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hi
we ran a 26 suzuki prop in the rough(73mph with195hp xr2) and raker 24 in the flat (80mph)you have to get both re-bushed, i would guess 80 and high 80's with 280 hp having said that a thinned 23 lazer was on the boat 80% of the time.hope this helps.

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Old 03-10-2010, 04:16 PM   #9
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hi
we ran a 26 suzuki prop in the rough(73mph with195hp xr2) and raker 24 in the flat (80mph)you have to get both re-bushed, i would guess 80 and high 80's with 280 hp having said that a thinned 23 lazer was on the boat 80% of the time.hope this helps.

derek.
what was the size of the hub on the lazer?
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Old 03-10-2010, 04:32 PM   #10
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large hub with thinned blade's, it would do 76 gps and should do 80 + easily with a 280. i have a 280 on my boat now and when it get's flat enough to try it i will let you know (if ever) i may take it up to coniston but not sure yet.

derek....
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Old 03-10-2010, 04:38 PM   #11
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how do you stop a phantom 18 "twisting" in rough seas?boat takes off waves but tries to turn itself over as it leaves the wave,running a 26 3 blade chopper come cleaver
Always remember a race in Falmouth when we changed our gearbox (1.87) and tried a 2:1 box.....had just this effect. I also think that this was the only race we ever retired from in The Baltic Exchange boat (18 phantom / xr2) and the only time we tried the 2:1 gearbox :-)
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Old 03-10-2010, 04:55 PM   #12
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just to throw a spanner in the work's we allways ran 2:1 but i know 1:87 is more reliable.

derek.
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Old 03-10-2010, 05:10 PM   #13
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Just goes to prove that all factors need to taken into account to get the balance and handling as you want it to be :-)
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Old 03-10-2010, 05:23 PM   #14
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15 years of racing help's a little bit (with a few crashes for good measure)
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Old 03-10-2010, 06:15 PM   #15
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15 years of racing help's a little bit (with a few crashes for good measure)
Very true Dereck, experience is a significant factor....and with regards the crashes, if you are always trying to find the limit then occasionally you will go past that point :-)
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