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Along with all the other points everyone made earlier, another is the fact that you are trying to match boat speed and prop speed upon reentry. If the boat leaves the water and you just let the motors sit on the rev limiter, what happens when the boat makes contact with the water again? The effect is much like standing on the gas and side-stepping the clutch in a car. However, that Bravo XR, or any drive for that matter, can't stand that type of shock. You will eventually twist/break a prop shaft, vertical shaft, prop etc. As someone else said, get out there and try it and you will be amazed at how much the throttleman has to do. Better yet, try doing it all by yourself in some snotty water. You'll find that you don't have enough hands and fingers!!!!:D
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According to Saccenti, in the first vid, the engines would cut out every time he tried to trim the boat. He found a "happy medium" and left the drives & tabs there the whole race.
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Originally Posted by Chris Sunkin
(Post 2549072)
A rev limiter can save someone from the odd mistake but they're not for continual use. You're basically shutting off the ignition to cylinders selectively at max rpm. Continually doing that is really hard on a crankshaft.
As far as timing, it's purely feel and experience. And alot of skill. Kind of like hitting a 95mph fastball. Not everyone can do it and few can do it really well. All you really have to do is head out into some waves and practice. Keep in mind- cutting the throttles too early drops the nose. That's not what you want to do when there's no water under there, like almost to the top of a swell. You also want to avoid powering off the top of the swell- that can get you nose-down as well. You ultimately want to avoid landing flat in the bottom between two swells and sticking the bow into the face of the next one. Speed comes into play here as well. Too slow can be just as bad as too fast. Kind of like jumping a ravine. You have to have enough speed to make it. Tabs play a big role as well. Most over-tab in bigger water. I've seen plenty of video of fast boats in moderate water "doing the slinky". They leave the wave and the boat follows a circular arch. You should land on the part of the surface you run on in almost all situations. If you're dropping the nose, you need less tab and possibly more trim. See here- http://uk.youtube.com/watch?v=wJzF8vU6oag Then here- http://media.boatmad.com/gallery/v/m...che_2.wmv.html (not a fair comparison- vid 2 is the best throttleman that ever lived) Always loved that 1st video. 2nd link is dead. |
Originally Posted by fast fun 2
(Post 2549034)
The throttle man backs off when the props come out of the water. A good throttleman rarely misses and keeps the boat flying level.
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Originally Posted by monstaaa
(Post 3282438)
aahhemmm,,hmmmm,mmm... thanxx
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It's these threads you have to try to remember, when you have the same guy that started this thread, arguing over who builds a better rough water boat in another thread lol
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Originally Posted by fast fun 2
(Post 3282556)
Could you elaborate a little more ?
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Originally Posted by monstaaa
(Post 3282640)
The good throtleman part.....
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Still bitter?.....Must have got coal in his stocking this morning!:drink:
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