R I V E T T / R O C K E T T
64
Tuning notes
The Rivett and Rockett hydros are just like any 3 point hydro, as far as tuning and
adjustment.
There are a few things that you should know when you are tuning your boat for maximum
performance.
The most important thing is to understand blow overs.
Blow overs can only occur if the angle of attack gets positive.
Angle of attack is the angle that the boat hull strikes the air. Since the bottoms of our
hydros are flat, we use that for a reference point.
When setting up the boat on the bench, the 7/8 inch measurement is a starting point.
The goal is to get the hull to ride level, or just a teeny bit tail high at full speed.
If you have to push the strut down to 1 inch, or 3 inches to get the boat level, do it!
This will change with different props, so strut adjustments are usually necessary with prop
changes.
Remember that the goal is always to keep the angle of attack no higher than zero, period.
The turn fin can have a strong influence on angle of attack if it is not aligned properly.
Also note that this hull is designed to race turning RIGHT only. Left turns can be easily made,
but always try to slow down if possible
Remember that if you don’t allow the nose to come up, the chance of blowing over is greatly
reduced.
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