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40 Cards in this Set
- Front
- Back
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What is the hull construction material?
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5082 marine grade aluminum 1/4" in thickness
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Interval between frames
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12" interval between frames, 20 frames number 16 is watertight
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Cabin superstructure material
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5052 marine grade aluminum 3/16" in thicknes
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Highest fixed point
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9' 1/2" on a trailer
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Highest unfixed point on 25' RBS
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12'8" is height of nav light mast when on a trailer
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length of boat
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29' 6 1/2" Bow to lowered taffrail
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beam
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8'6"
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Freeboard at bow
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36
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Freeboard at lowest point
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48"
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Full load displacement of the boat
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9200 lbs 9450 with trailer
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Draft of boat
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39" with engines vertical
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Draft with engines up
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23 1/4"
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Location of deepest draft
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39"below prop
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Watertight compartments?
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None
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Watertight hatches
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None
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Scuttles and which one scan be secured
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None
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Hull drain fittings
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Six drains and four scuppers,
2 drains forward cabin deck 2aft weather deck drains 2 aft well drains 2 forward cabin deck scuppers 2 aft weather deck scuppers |
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Downflooding
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Entry of water in the hull or superstructure of an undamaged vessel do to heel or trim
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Buoyancy
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Upward force of water displaced by the hull
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Whais a righting moment
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Force causing the vessel to react against a roll and return to an even keel
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Define set as in the term set and drift
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Set is the bearing of the current
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Drift
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Is the speed in knots of the current
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Effect of an ebb tide
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Eb tide is between high tide and low tides he depth is decreasing
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TWO TYPES OF STABILITY
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LONGITUDINAL AND TRANSVERSE
LONGITUDINAL IS FORE AND AFT TRANSVERSE IS ATHWARTSHIPS |
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BUOYANCY
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IS THE FORCE OF WATER DISPLACED BYTHE HULL
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DEFINE RIGHTING MOMENT
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FORCE CAUSING A VESSEL TO REACT AGAINST A ROLL AND RETURN TO AN EVEN KEEL
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WHAT ARE THE CAUSES OF CAVITATION
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OPERATING IN AN AERATED WATER
GETTING A STOPPED PROPELLER TO SPIN AT MAX SPEED RAPIDLEY GOING FROM AHEAD TO ASTERN COMMON WHEN BACKING WITH OUTBOARD MOTORS |
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WHAT IS DYNAMIC PROPELLER THRUST
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PROP DISCHARGE FROM SIDES, COUNTERROTATION CORRECT AND PUSHES BOAT FORWARD
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WHAT IS SIDE FORCE
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HOW THE PROPELLER REACTS TO INTERFERENCE FROM THE VESSELL HULL AS THE HULL DRAGS A LAYER OF WATER ALONG WITH IT.
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WHAT TYPE OF OIL IS THE HONDA OUTBOARDS ON THE 25' RBS
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10 W 30 8 QUARTS
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WHAT TYPE OF COOLING SYTEM IS ON THE 25' RBS 225 ENGINE?
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RAW WATER INTAKE AT THE BOTTOM OF THE LOWER UNIT
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WHAT IS THE FORWARD GEAR RATIO
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1:1
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WHAT IS THE REVERSE GEAR RATIO
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1:1
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WHAT IS THE PROPELLER DIAMETER
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14"
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HOW MANY BLADES ON THE PROPELLER
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4
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WHAT IS LEEWAY
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WIND OR CURRENT PUSHING YOUR BOAT OFFCOURSE
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STATE THE EFFECTS OF UNEQUAL THRUST
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THE BOW WILL TURN PORT OR STARBOARD DEPENDING ON THE DIRECTION OF THE BLADE THRUST.
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PRIMARY SYMPTOMS OF FATIGUE
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INABILITY TO FOCUS
MENTAL CONFUSION DECREASED COORDINATION INCREASED IRRITABILITY DECREASED PERFORMANCE DECREASED CONCERN FOR SAFETY |
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PREVENTIVE MEASURES
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ADEQUATE REST
APPROPRIATE DRESS ROTATE CREW DUTIES PROVIDE FOOD AND REFRESHMENTS OBSERVE OTHER CREWMEMBERS FOR FATIGUE |
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WHAT ARE ENVIRONMENTAL CONDITIONS THAT PROMOTE FATIGUE.
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MOTION SICKNESS
GLARE FROM SUN WIND AND ROUGH SEAS RAIN OR SNOW ENGINE VIBRATION |
