39
Hull Technology
Thrust Angle
CG
TURNING A STEP BOTTOM BOAT
“TRADITIONAL” TURNING TECHNIQUES ARE THE BASIS FOR
MOST INCIDENTS INVOLVING STEP BOTTOM BOATS.
TRADITIONAL V-BOTTOMS REQUIRE GREATER POSITIVE TRIM TO
ATTAIN TOP SPEEDS, AND TRADITIONALLY OPERATORS APPLY
NEGATIVE TRIM TO BRING THE BOAT BACK INTO CONTACT WITH
THE WATER PRIOR TO TURNING.
NEGATIVE TRIM WHILE TURNING A STEP BOTTOM BOAT CAN
CAUSE SEVERE AND VIOLENT SPIN-OUTS.
NEUTRAL TRIM
WHEN THE BOAT IS TRIMMED IN THE NEUTRAL POSITION,
PRESSURE, AND THEREFORE CONTACT, IS FOCUSED AROUND
THE CENTER OF GRAVITY AND TOWARD THE TRANSOM.
CONSISTANT HULL CONTACT IS MAINTAINED FROM THE
FORWARD STEP TO THE TRANSOM PROVIDING A STABLE
RUNNING PLATFORM.
THE TURNING FULCRUM WILL TYPICALLY BE LOCATED AROUND
THE HIGHEST AREA OF HULL CONTACT PRESSURE.
Thrust Angle
CG
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FULCRUM
Summary of Contents for Express Cruiser 2005
Page 21: ...Quick Reference Drawing 17 38 Express Cruiser...
Page 22: ...Quick Reference Drawing 18 38 Express Cruiser...
Page 23: ...Quick Reference Drawing 19 38 Express Cruiser...
Page 24: ...Quick Reference Drawing 20 38 Express Cruiser...
Page 25: ...Quick Reference Drawing 21 38 Express Cruiser...
Page 26: ...Quick Reference Drawing 22 48 Express Cruiser...
Page 27: ...Quick Reference Drawing 23 48 Express Cruiser...
Page 28: ...Quick Reference Drawing 24 48 Express Cruiser...
Page 29: ...Quick Reference Drawing 25 48 Express Cruiser...
Page 30: ...Quick Reference Drawing 26 48 Express Cruiser...
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