Term
| 5052 Marine Grade Aluminum |
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| Overhead Hinged Instrument Panel |
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| Rated at 10 strokes per gallon and 6 gallons per minute |
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| GAR score scale utilized in TCT/Risk Assesment |
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| 5086 Marine Grade Aluminum |
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| restricts free surface movement within the fuel tank |
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| Mercury Marine Flo-Torq II propeller cushion hub kit |
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Definition
The hub kit reduces the shock on the lower unit gears and engine when shifting gears and absorbs shock if the propeller hits
an object |
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Definition
| Secured Around Flotation Equipped |
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| designed to provide flotation, fendering, and stability |
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| Scalable Integrated Navigation System |
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Term
| Category II, 406 MHz EPIRB |
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Definition
| The EPIRB provides location accuracy to 0.05 NM and can provide data to search and rescue (SAR) units within 5 minutes after activation and signal detection |
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Definition
| “Boat is not serviceable.” |
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| “Boat and crew cannot perform all missions safely.” |
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Term
| High-Speed Maneuver, Boarding Operations, Extreme Seas/Surf and Towing |
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Definition
| Four scenarios where the 33' is likely to become capsized |
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| Length Overall (Bow to lowered Taffrail) |
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Operational Draft (DIW with engines
vertical) |
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Draft, Engines Tilted Up (waterline to
keel) |
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Definition
Height of Navigation Light Mast When
on Trailer |
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Definition
| Height of Radar Dome When on Trailer |
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| Height of Search Light When on Trailer |
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Highest Fixed Point When on Trailer
(Radar Pod Cofferdam, with the tow reel
removed, radar pod folded down, and
search light removed) |
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Definition
| Crew Capacity (cabin seats) |
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| Boat Weight (fully outfitted, no crew) |
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Boat Maximum Weight (fully outfitted,
four crew, six passengers) |
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Weight (fully outfit, fuel, trailer, no
crew) |
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| Max range @ cruising speed |
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| max operating distance offshore |
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| amount of ice and/or slush the boat can operate in |
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| how the frames are numbered on the RB-S |
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| Approx number of total frames on the 25' |
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| number of windows on the 25' |
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Definition
| describes aft cabin door and forward cuddy cabin door |
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Definition
| type of diesel-burning, forced air heater for cabin and window defrosting which is located on the port side of the cuddy cabin behind an aluminum access cover |
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Definition
contains access to the fuel management system that includes the tank
information plate, fuel filters, fuel pickup, vent tubing, primer bulbs, and
Wema™ fuel-sending unit |
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Definition
| portable B-1 fire extinguisher is mounted in the starboard locker |
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Term
| Electric cabin dewatering pump |
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Definition
| located inside the cabin on the cabin floor, aft bulkhead on the centerline under the cabin step |
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Term
| Electric cabin dewatering pump |
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Definition
| Rated at 1100 gallons per hour and has a built-in float switch for automatic operation. Pump will turn on when the water level reaches 2⅛ inches and off when no load is sensed by the pump’s impeller. |
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| Electric cabin dewatering pump |
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Definition
Discharge for the electric cabin dewatering pump is located on the aft,
starboard exterior cabin bulkhead, above the deck edge walkway |
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Term
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Definition
| number of 10-inch aluminum standard cleats located port, starboard, forward, aft, and amidship are fully welded to the gunwhale |
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number of lifting eyes. Two are located above the anchor locker and two are located in the forward bulkhead of the
aft lockers. Each eye is rated at 9500 pounds. |
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| Size of ring buoy on the 25' w/ attached strobe light |
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| amount of 2 1/4" circumference double-braided nylon line, which can be used for towing or anchoring on the 25' |
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| Describes the port aft deck locker due to risk of damage to the fuel system components |
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| 1 inch wide by 7 feet long |
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Definition
| describes ratcheting tie-down straps provided with the boat used to secure dewatering pump on aft deck |
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| rated 225 HP at 5500 RPM, is a four-stroke, V6, water-cooled engine and weighs approx 633 LBS |
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| trochoid pump pressure system with a capacity of 8 U.S. quarts (7.6 liters) of SAE 10W-30 |
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| located under the engine cover on the starboard side of each engine |
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| located under the engine cover on the forward port side of the engine |
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Consists of an impeller type pump and
thermostat mounted on the engine |
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Definition
Number of cooling water intake ports
located on the port and starboard sides of the lower outboard fairing directly above the horizontal propeller shaft. A cooling system indicator on the starboard side of the engine cover
shows that water is circulating through the engine cooling system |
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| located in the inlet line to the outboard engine, primes and pressurizes the outboard engine fuel system for starting |
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Definition
attached to an 18-inch lanyard, which is attached to the operator’s PFD or
boat crew survival vest. Should the operator/coxswain fall away from the
controls, the engine(s) will immediately stop |
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Definition
Mounted on the starboard side of the
engine cover. Switch is used when the engine is stopped to raise the engine for mooring, trailering, or maintenance |
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Definition
located on the port side of the engine’s stern bracket and is used in conjunction with the tilt lock lever.
By inserting a screwdriver in the manual release valve and turning the
screw, the engine can be manually tilted and locked |
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Definition
used to support the engine in the fully
raised position. The lever is located between the engine housing and the frame of the engine |
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Definition
discharged around the propeller shaft
and through the hub of the propeller |
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Definition
| stainless steel, four-blade propeller, with a 14-inch diameter and 19-inch pitch |
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Definition
| decks and side plating thickness |
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Definition
| Boat's deepest draft with the engines trimmed to the maximum depth and the boat making no headway |
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| Hull’s deepest draft with the engines raised |
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Definition
| on the keel at bulkhead 1, forward of the transom |
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Definition
located port and starboard below the
aft portion of the collar. They provide lift upon acceleration and create a
vacuum for stabilization during turning |
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Definition
| three on each side of the V bottom hull to improve seakeeping, directional stability, and planing performance |
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Definition
Thickness of the 5086 marine grade aluminum beaching plate that is welded to the keel along the forefoot to provide additional protection to the
hull |
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| located forward of the depth and temperature sensor in the step. This can be used for hull draining and borescope access |
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| Two ½-inch inspection plugs are located inside the cabin near frames 7½ and 13½. A borescope is required for internal inspection |
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| number of deck drains and scuppers respectively |
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Definition
| located on the transom just inboard of the aft well deck scuppers (water socks) can be removed to drain the aft lockers |
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Term
| Hydraulic steering cylinder, Tie bar assembly, Helm pump assembly |
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Definition
| three major components of the steering system |
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| Sea Star steering cylinder |
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Definition
| front-mount system that is compatible with twin-engine, independent tilt. It allows for easy hydraulics and has a five-turn lock-to-lock response |
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Definition
| It's purpose is to provide equal, uniform directional control of the engines, but does not interfere with independent trim, tilt, and throttle |
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| mounted in the console and has hydraulic lines connected to it that run to the steering cylinders |
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| provides 118 gallons of burnable gasoline (95% of total tank capacity) for operating the two outboard engines |
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| utilizes a diesel fuel system separated from the boats gasoline fuel system |
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Definition
located directly above and forward
of the fill cap |
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| Fuel filter/water separator in port aft deck locker |
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Definition
| has a translucent bowl that allows for visually determining the presence of water in the fuel and rated at 60 gallons per hour (GPH) with a 10-micron, disposable filter element |
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Definition
located in the aft port storage box
adjacent to the fuel tank fill hose and
transmits the known fuel tank quantity to the fuel tank indicator on the starboard instrument panel |
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Definition
| used to automatically sound the boat's foghorn in reduced visibility |
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Term
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Definition
| Electro Magnetic Interference which may be created when cabin electrical equipment (windshield wiper motors, cabin fan motors, heater, or flood lights) are energized ultimately affecting the magnetic compass |
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Term
| PG-1000 Fluxgate heading sensor |
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Definition
| proven to be accurate and shall be considered the primary navigation compass |
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| unaffected by Electro Magnetic Interference and therefore can also be used in combination with the digital compass. |
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Definition
has five available alarm functions and a memory capacity of 1000 points of
vessel track, 999 waypoints or marks, and 50 routes comprised of up to 30
waypoints. Also has an accuracy of 5 meters or better with DGPS |
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| PG-1000 Fluxgate heading sensor |
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Definition
mounted horizontally inside the cabin
on the centerline, aft bulkhead under the step. |
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Term
| depth and temperature sensor |
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Definition
| mounted under the transom, on the centerline, aft of the step |
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Definition
| provide the charging power for the boats’ batteries, rated at 60 amps at 2300 RPM, and belt driven |
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| number of 12-V gel-cell type batteries mounted on the port side under the forward crew seat |
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| vented to the exterior, port aft cabin bulkhead to prevent accumulation of charging gases |
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Definition
| if the individual battery fails to start the engine, this switch will parallel the two starting batteries |
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| Three 12-VDC distribution panels |
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Definition
| located on the inboard side of the starboard cabin console. The panels provide circuit protection for shipboard electrical and electronic equipment |
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| describes the combustion heater that utilizes diesel fuel and is located inside the cabin, port side behind an access panel |
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| Extreme cold temperatures |
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Definition
| this may cause the diesel fuel for the boat's heater to jell |
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Definition
| turn temperature control to minimum, operate for two minutes, depress ON-OFF rocker switch in the off position |
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| six-gallon diesel fuel tank |
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Definition
| located on the aft weather deck, just aft of the port cabin bulkhead |
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| max speed the boat and trailer may be towed |
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| rated at 200,000 candlepower and can be rotated 360 degrees |
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Definition
number of B-1 type fire extinguishers installed. One is mounted in the cabin, port side on the heater access panel,
and one is mounted in the starboard aft deck locker. Each extinguisher contains approximately two pounds of dry chemical agent (ammonium phosphate) that will discharge in 9 to 10 seconds once the handle is activated |
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Term
| 25's Category II, 406 MHz EPIRB |
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Definition
manually deployable, self-buoyant units
equipped with a self-test feature that confirms operation as well as battery
condition and GPS position data |
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Term
| Restrictive discrepancies |
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Definition
| shall be reported to the CO/OIC if the discrepancy cannot be repaired within 1 hour |
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| max range of the 25' with a normal load |
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| total fuel consumption at 35 KTS |
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| If the engine overheats, this will come on, engine speed will be gradually reduced to approximately 1800 RPM and the engine will stop after 20 seconds |
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| If oil pressure becomes low, less than 23 PSI at 1800 RPM, this will go off. If at cruising speed, the ECM will gradually decrease engine speed |
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| this will come on if there is a malfunction in the charging system |
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| Engine Control Module mounted on the engine |
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Definition
This will come on when the ECM senses an abnormality from one of the nine engine-mounted sensors. Continue to carefully
monitor engine performance and stop engine if performance deteriorates or
becomes erratic |
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Term
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Definition
| designed idle speed of the 25' |
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Term
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| doing this while “trimmed out” (up) or “trimmed level” can result in “hooking a chine”, causing a violent reaction which may create immediate loss of control of the boat and sufficient force to pitch crewmembers overboard |
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| approximately the aft cabin bulkhead when fully trimmed in |
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| the frequency in which you should anchor from the stern |
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Definition
| this describes a boat being towed sideways by an opposing force on its own towline. There is imminent danger that a boat will capsize when in this situation |
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| port/starboard sliding doors |
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Definition
| preferred method of egress from a Defender Class boat |
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Definition
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| 1 ¾” circumference DBN x 100 feet |
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| Missing kill switch lanyard |
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Definition
| Steering system inoperative |
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| Restrictive Discrepancies |
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Definition
| Navigation lights inoperative or displaying improper characteristics, Depth sounder inoperative, GPS inoperative, Radar inoperative. |
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Definition
| Electric cabin dewatering pump is inoperative |
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| Restrictive Discrepancies |
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Definition
| Any leaks to outboard cooling water components, outboard engine lubrication system components, Steering actuator help pump, hoses or fittings, and Diesel fuel |
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Term
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Definition
| Engine cannot run above 6000 rpm. If the engines exceed 6000 rpm’s, it is considered this |
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