The blade pitching
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Blade pitch NAPOLI 2009

Filippi Engineering - WHAT DOES IT MEAN TO ADJUST A RIGGER WITH ITS OAR ? - WHY SHOULD WE SET A RIGGER WITH ITS OAR? - RULES TO BE FOLLOWED FOR PROPER MEASUREMENT - HOW DOES AN OAR HAVE TO BE CHECKED ? - HOW CAN WE CHANGE THE PTCH OF THE BLADE? - MEASUREMENT DEVICES Blade pitching NAPOLI 2009

Filippi Engineering -WHAT DOES IT MEAN TO ADJUST A RIGGER WITH ITS OAR? FIRST OF ALL TO ASSIGN A PITCH ANGLE ( ALFA ) IN THE CATCH AND FINISH Blade pitching NAPOLI 2009

Filippi Engineering WHY SHOULD WE ADJUST A RIGGER AND ITS OAR ? OBVIOUSLY THE OAR HAS TO BE PLACED IN THE WATER WITH THE BLADE WHICH DURING THE STROKE DOESN’T SINK OR COME OUT. THEREFORE IT IS VERY IMPORTANT FOR YOU TO ASSIGN AN ACCURATE POSITION TO THE BLADE. Blade pitching NAPOLI 2009

-RULES TO BE FOLLOWED FOR A PROPER MEASUREMENT Filippi Engineering THE MEASUREMENT HAS TO BE MADE OUT OF THE WATER, REPRODUCING THE REAL CONDITIONS OF THE STROKE. THEREFORE WE SHOULD CONSIDER THAT: ALFA 1. OAR HANDLE IS IN THE REAL POSITION 2. THE BLADE ANGLE IN THE CATCH POSITION 3. THE BLADE ANGLE IN THE FINISH POSITION 4. THE CONTACT BETWEEN SLEEVE AND OARLOCK IS CORRECT 5. THE MEASUREMENT HAS TO BE REPEATABLE IN ORDER TO REDUCE MISTAKES TO THE LEAST Look at them separately Blade pitching NAPOLI 2009

RULES TO BE FOLLOWED FOR A PROPER MEASUREMENT Filippi Engineering THE SINKING OF THE OAR IN THE WATER THE HEIGHT OF THE OAR DURING THE MEASUREMENT HAS TO BE EQUIVALENT TO THE REAL POSITION IN THE WATER Blade pitching NAPOLI 2009

TO BE FOLLOWED FOR A PROPER MEASUREMENT Filippi Engineering CORRECT CONTACT BETWEEN SLEEVE AND OARLOCK THE CONTACT BETWEEN OARLOCK AND SLEEVE HAS TO BE ENSURED BLADE PITCHING NAPOLI 2009

- RULES TO BE FOLLOWED FOR A PROPER MEASUREMENT Filippi Engineering RESPECTING THE ANGLES OF CATCH AND FINISH THE ANGLES AT THE CATCH AND THE FINISH HAVE TO BE THE REAL. IT’S NECESSARY TO HAVE THE POSSIBILITY TO REAPEAT THE MEASUREMENT SO TO ENSURE ACCURATE CHECKS Blade pitching NAPOLI 2009

-RULES TO BE FOLLOWED FOR A PROPER MEASUREMENT Filippi Engineering REPETITION OF THE MEASUREMENT WE MUST ALWAYS TAKE THE MEASUREMENT ON THE BLADE IN THE SAME WAY AND IN THE SAME POSITION Blade pitching NAPOLI 2009

Filippi - HOW CAN WE CHECK THE OAR ? SINCE WE ARE TALKING ABOUT OARS, THE FIRST THING TO DO, BEFORE GOING ON, IS TO CHECK POSITION OF THE BLADE IN COMPARISON TO THE SLEEVE Blade pitching NAPOLI 2009

WE CAN USE THE DEVICES SUPPLIED BY CONSTRUCTION COMPANIES SPECIALISING IN OARS OR MORE SIMPLY A LEVELLED BENCH; WHERE WE LEAN THE BLADE, AND WITH A LEVEL WE CHECK THE CORRECT POSITION OF THE SLEEVE. IN ORDER TO OBTAIN A PROPER BLADE PITCH IT IS ESSENTIAL TO CONTROL THE CREW’S OARS AND THAT THE OARS ARE THE SAME. Blade pitching NAPOLI 2009

- HOW CAN WE CHANGE THE PITCH OF THE BLADE? IN ORDER TO CHANGE THE PITCH OF THE BLADE THERE ARE TWO POINTS TO CONSIDER : Blade pitching NAPOLI 2009 Filippi Engineering

IF WE LIKE : CONSTANT PITCH OF THE BLADE AT THE CATCH AND THE FINISH LATERAL PITCH DIFFERENT PITCH OF THE BLADE AT THE CATCH AND THE FINISH PIN WITH LATERAL PITCH Blade pitching NAPOLI 2009

Filippi Engineering VERTICAL PIN – COSTANT PITCH AT THE CATCH AND AT THE FINISH DIFFERENCE CATCH - FINISH = 0 VERTICAL PIN TO CHANGE THE PITCH OF THE BLADE (IN CATCH AND FINISH ) WE CAN ONLY WORK ON THE OARLOCK, CHANGING THE BLUE BUSHINGS Blade pitching NAPOLI 2009

PIN WITH LATERAL PITCH DIFFERENT PITCH OF THE BLADE BETWEEN THE CATCH AND FINISH LATERAL PITCH STARTING FROM THE VERTICAL PIN, IF WE MOVE THE PIN IN DIRECTION : E) WE INCREASE THE DIFFERENCE BETWEEN CATCH AND FINISH G) WE REDUCE THE DIFFERENCE BETWEEN CATCH AND FINISH B F) WE INCREASE THE DEGREES AT THE CATCH AND FINISH H) WE REDUCE THE DEGREES AT THE CATCH AND FINISH Blade pitching NAPOLI 2009

B) WE INCREASE THE DEGREES AT THE CATCH – (BLADE TENDS TO COME OUT) D) WE REDUCE THE DEGREES AT THE CATCH ATTACCO –( BLADE TENDS TO SINK) A) WE REDUCE THE DEGREES IN THE FINISH -(BLADE TENDS TO SINK) C) WE INCREASE THE DEGREES IN THE FINISH – B (BLADE TENDS TO COME OUT) Blade pitching NAPOLI 2009

- HOW CAN WE PITCH THE PIN ? ALUMINIUM RIGGER BLUE BUSHINGS TRADITIONAL 3-4 STAYS OR WING Blade pitching NAPOLI 2009

THE LATERAL WASHERS ALLOW US TO PITCH THE PIN. THE CONICAL WASHERONLY HAS TWO MOUNTING OPTIONS ON THE RIGGER; ONE OPPOSITE EACH OTHER. THERE ARE 3 DIFFERENT DEGREES OF INCLINATION: 0.5 DEGREES – 1 DEGREE – 2 DEGREES IN ORDER TO PITCH A PIN WE NEED 2 THEY HAVE TO BE MOUNTED AS IN THE PICTURE: ONE UP AND ONE DOWN THE PIN. THEY MUST BE MOUNTED IN OPPOSITE DIRECTION The washers with their marks are oriented in the opposite direction Blade pitching NAPOLI 2009

ALUMINIUM RIGGER TRADITIONAL 3-4 STAYS OR WING IT IS IMPOSSIBLE TO MOVE THE PIN IN THESE DIRECTIONS THE ONLY SOLUTION IS TO BEND THE RIGGER, COMPROMISING ITS STRUCTURE Blade pitching NAPOLI 2009

THE PIN HAS ALL THE DEGREES OF FREEDOM IT NEEDS FOR A BLADE PITCHING WITHAUT LIMITS TUBULAR CARBON RIGGER ALIANTE CARBON RIGGER DIRECTION DIRECTION DIRECTION DIRECTION MOVING SIMPLY ONE SCREW, WE MAKE FREE AN HOLD PIN HILT(”C”) WHICH GETS TOTALLY ADJUSTABLE Blade pitching NAPOLI 2009

THE PIN HAS ALL THE DEGREES OF FREEDOM IT NEEDS TO PITCH A BLADE WITHOUT LIMITS WING CARBON RIGGERS DIRECTION DIRECTION DIRECTION DIRECTION MOVING SIMPLY TWO SCREWS WE MAKE FREE THE PIN WHICH GETS ADJUSTABLE WITHOUT LIMITS Blade pitching NAPOLI 2009

- ADVANTAGES- DISADVANTAGES IT IS POSSIBLE TO PITCH THE BLADE WITHOUT LIMITS TO PITCH THE BLADE IT IS NOT NECESSARY TO DISMANTLE THE OARLOCK, WE DON’T NEED THE BLUE BUSHINGS TUBULAR CARBON RIGGER ALIANTE CARBON RIGGER WING CARBON RIGGER THE METHOD IS FAST AND RELIABLE FRAGILITY AND CARE DURING THE HANDLING\ ADJUSTMENT THE PIN HAS ONLY 2 DEGREES OF FREEDOM / MOVEMENT WE MUST DISMANTLE THE OARLOCK EACH TIME WE WANT TO CHANGE THE BLADE PITCH WE MUST DISMANTLE THE PIN EACH TIME WE WANT TO ADJUST THE LATERAL PITCH Blade pitching NAPOLI 2009

MEASUREMENT DEVICES THE PITCH METER IS USED TO PUT THE PIN IN A VERTICAL POSITION USING THE GRADUATED SCALE TO EASILY PLACE THE PIN 1/2/3 LATERAL DEGREES It can easily be used to gauge the position of the pin before and after and the change of the settings of the rigger’s. Inclinometer It allows us to gauge the degrees of the blade Blade pitching NAPOLI 2009