cover 11/28/03 12:03 PM Page 1
`
`BOATBUILDER’S
`HANDBOOK
`
`[ REVISED NOVEMBER, 2003 ]
`
`Produced Under A Grant From
`The Aquatic Resources (Wallop-Breaux) Trust Fund
`Administered By The U.S. Coast Guard.
`
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`tabs 11/28/03 11:55 AM Page 15
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`SUBPART F
`FLOTATION REQUIREMENTS
`For Inboard Boats, Inboard/Outdrive Boats and Airboats
`Revised November, 2003
`
`SUBPART G
`FLOTATION REQUIREMENTS
`For Outboard Boats Rated for Engines of More Than 2 Horsepower
`Revised November, 2003
`
`SUBPART H
`FLOTATION REQUIREMENTS
`
`For Outboard Boats Rated for Engines of 2 Horsepower or Less
`Revised November, 2003
`
`Title 33 CFR, Sections 183.101–183.335
`
`FLOTATION
`
`WARNING:
`This guide only addresses provisions of the Federal Regulations.
`It is NOT a complete engineering manual for the design of boat systems.
`It is the manufacturer’s responsibility to ensure Federal Regulations
`cited in this guide have not been updated or revised.
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`Table of Contents
`
`SECTION
`
`DESCRIPTION
`
`Introduction
`
`1.0
`1.1
`
`1.2
`1.3
`
`2.0
`2.1
`2.2
`
`2.3
`
`3.0
`3.1
`3.2
`3.3
`
`4.0
`4.1
`4.2
`
`5.0
`5.1
`5.2
`
`6.0
`6.1
`6.2
`
`7.0
`7.1
`7.2
`7.3
`
`Applicability
`Subpart F (183.101–183.114) —
`Inboard Boats, Inboard/Outdrive Boats, and Airboats
`Subpart G (183.201–183.235) — Outboard Boats Rated for More Than 2 HP
`Subpart H (183.301–183.335) — Outboard Boats Rated for 2 HP or Less
`
`Definitions
`Subpart F — Flotation Requirements for Inboards, Sterndrives and Airboats
`Subpart G — Flotation Requirements for Outboard Boats Rated for Engines
`of More Than 2 Horsepower
`Subpart H — Flotation Requirements for Outboard Boats Rated for Engines
`of 2 Horsepower or Less
`
`Preconditioning
`Subpart F — Inboard Boats, Inboard/Outdrive (Sterndrive) and Airboats
`Subpart G — Outboard Boats Rated for More Than 2 Horsepower
`Subpart H — Flotation Requirements for Outboard Boats Rated for Engines
`of 2 Horsepower or Less
`
`Basic Flotation
`Example of Basic Flotation Calculations
`Summary of Basic Flotation Performance Requirements
`
`Level Flotation
`Example of Level Flotation Calculations
`Summary of Level Flotation Requirements and Tests
`
`Modified Level Flotation
`Example of Modified Flotation Calculations
`Summary of Modified Flotation Requirements and Tests
`
`Flotation Materials
`Requirements
`Flotation Material Tests
`Installation Requirements
`
`Appendix A
`
`33 CFR Part 183, Table 4: Weight (Pounds) of Outboard Motor
`and Related Equipment for Various Horsepower Ratings
`
`Appendix B
`
`33 CFR Subpart H, Figures 2–13
`
`References
`
`PAGE
`
`1
`
`2
`
`2
`3
`4
`
`5
`6
`7
`
`9
`
`16
`17
`17
`19
`
`20
`23
`25
`
`26
`36
`39
`
`48
`50
`52
`
`55
`56
`57
`60
`
`66
`
`67
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`68
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`List of Federal Regulations
`
`Section
`
`Title
`
`Page
`
`Subpart F
`183.101
`183.105
`183.110
`183.112
`183.114
`
`Subpart G
`
`183.201
`183.202
`183.205
`183.210
`183.215
`183.220
`183.222
`183.225
`183.230
`183.235
`
`Subpart H
`
`183.301
`183.302
`183.305
`183.310
`183.315
`183.320
`183.322
`183.325
`183.330
`183.335
`
`Flotation Requirements Inboards, Inboard/Outdrive, and Airboats
`Applicability
`Quantity of flotation required
`Definitions
`Flotation material and air chambers
`Test of flotation materials
`
`Flotation Requirements for Outboard Boats Rated for
`Engines of More Than 2 Horsepower
`Applicability
`Flotation and certification requirements
`Passenger carrying area
`Reference areas
`Reference depth
`Preconditioning for tests
`Flotation material and air chambers
`Flotation test for persons capacity
`Stability test
`Level flotation test without weights for capacity
`
`Flotation Requirements for Outboard Boats Rated for
`Engines of 2 Horsepower or Less
`Applicability
`Flotation requirements
`Passenger carrying area
`Reference areas
`Reference depth
`Preconditioning for tests
`Flotation materials
`Flotation test for persons capacity
`Stability test
`Level flotation test without weights for persons capacity
`
`183.516
`
`Cellular plastic used to encase fuel tanks
`
`Table 4
`
`Weight (Pounds) of Outboard Motor and Related Equipment
`for Various Boat Horsepower Ratings
`
`Figures 2–13
`
`2
`20
`6
`56
`57
`
`3
`26
`7
`8
`8
`17
`56
`39
`42
`47
`
`4
`48
`9
`9
`10
`19
`56
`52
`52
`54
`
`59
`
`66
`
`67
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`Introduction
`
`Introduction
`
`This guide is intended to help a boat manufacturer comply with the flotation requirements for
`certain boats. Compliance with these requirements IS THE RESPONSIBILITY of the boat
`manufacturer. This guide shows the calculations necessary for design and production considerations,
`and describes the test methods necessary to achieve and confirm compliance.
`
`The methods of calculating the amount of flotation material needed are included and usually work
`toward the safe side; in other words, they will result in a little more than the regulation requires
`rather than a little less. As an example, using the formulas to determine the amount of flotation
`material necessary to provide for the persons capacity in Basic and Modified Basic flotation, this
`Guideline calls for 0.25 of the persons capacity, whereas the regulation calls for 2/15ths, which is
`about 0.133. Using the formulas contained in this Guideline will always meet the requirements of
`the regulations and will often exceed them.
`
`CAUTION:
`
`This guideline only addresses provisions of the Federal Regulations. It is not a complete
`engineering manual for the design of electrical systems on boats. There are other
`manuals and standards available for this purpose.
`
`NOTE:
`
`The formulas and methods contained in this Guideline do not alter, modify, supersede or otherwise
`replace the requirements of the federal regulations now in effect.
`
`FORMAT
`
`Because the wording of the regulation may be difficult to understand, this guide is written in
`somewhat simple terms. It is organized in a manner in which the reader (presumably the boat
`manufacturer) can go directly to the section dealing with the type of boat to be built following a
`review of Sections 1.0 — Applicability and 2.0 — Definitions. There are different flotation requirements
`for different types of boats and we address the specific tests each type of boat must pass.
`
`It is recommended that Section 1 be read first so that a general idea of the requirements can be
`obtained — particularly since it relates to the applicability of the regulations. Then read Section 2.0
`— Definitions, since these may vary from similar definitions in other contexts. Next, deal only with
`your boat type — either Section 4.0, 5.0, or 6.0. This will make the flotation requirements much
`easier to understand. Finally, review the flotation material requirements described in Section 7.
`
`There are three types or modes of flotation requirements, namely: Basic Flotation, Level Flotation,
`and Modified Level Flotation. Each one has its own requirements and specific tests. This Guideline is
`organized in an easy-to-follow format. Each subpart describes the boats included, explains the
`general requirements for these boats, and lists the type of flotation necessary in each. Based on the
`type of boat, the reader can determine what flotation is required by going directly to the
`appropriate section in the Guideline.
`
`1
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`1.0 Applicability
`
`Since the regulation is divided according to boat type, the applicability for the various types is
`discussed in each subpart. The exceptions, however, apply to all subparts and are as follows:
`
`Sailboats, canoes, kayaks, inflatable boats, submersibles, surface effect vessels, amphibious
`vessels, multi-hull boats and race-boats need not comply.
`
`Following is a summary of the applicability by boat type and subpart.
`
`Subpart
`
`Boat types
`
`Inboards, Inboard/Outdrives
`And Air Boats
`
`Outboard Boats Rated for
`More Than 2 Horsepower
`
`Outboard Boats Rated for 2
`Horsepower or Less and Manually
`Propelled Boats
`
`F
`
`G
`
`H
`
`NOTE:
`
`Flotation Required
`
`BASIC FLOTATION
`
`LEVEL FLOTATION
`
`MODIFIED LEVEL FLOTATION
`
`Certain catamarans may be considered as mono-hull boats for the purpose of this regulation. For
`example, the waterline of some catamaran designs will form a single closed curve when the boat is
`loaded with the maximum rated horsepower engine and the maximum weight capacity. These boats will
`be considered by the USCG as mono-hulls and must comply with the flotation requirements.
`
`1.1 Subpart F — Flotation Requirements for
`Inboards, Inboard/Outdrive, and Airboats
`
`FEDERAL LAW:
`
`183.101
`
`Applicability.
`
`This subpart applies to monohull inboard boats, inboard/outdrive boats, and
`airboats less than 20 feet in length, except sailboats, canoes, kayaks,
`inflatable boats, submersibles, surface effect vessels, amphibious vessels, and
`raceboats.
`
`183.101 Applicability
`
`2
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`183.201 Applicability
`
`Discussion:
`
`Monohull inboard, inboard/outboard boats and airboats less than 20 feet in length must comply
`with a flotation system called Basic Flotation. Section 4.0 contains the requirements and tests.
`Basic flotation is the simplest type of flotation mode covered in this regulation. It simply requires
`that the boat be manufactured with sufficient flotation material to keep it afloat in the event of a
`swamping. It does not, however, require that the boat remain in an upright or indeed any specific
`position. It may float, and usually does, in a “spar” position, the bow sticking up and the stern sunk.
`The requirements include some materials tests. Section 4.0 covers this type of flotation.
`
`1.2 Subpart G — Flotation Requirements for Outboard Boats Rated for
`Engines of More Than 2 Horsepower
`
`FEDERAL LAW:
`
`183.201
`
`Applicability.
`
`(a) This subpart applies to monohull outboard boats that are:
`
`(1) Less than 20 feet in length; and
`
`(2) Rated for outboard engines of more than 2 horsepower.
`
`(b) This subpart does not apply to sailboats, canoes, kayaks, inflatable boats,
`submersibles, surface effect vessels, amphibious vessels, and raceboats.
`
`Discussion:
`
`Monohull boats under 20 feet in length and rated for more than two horsepower must comply with
`the more sophisticated flotation system called Level Flotation. The Level Flotation system requires
`that the swamped boat, loaded with certain weights representing weight capacity, part of persons
`capacity and some equipment, must float in an approximately level position and not heel past a
`certain angle, even when part of the passengers’ weight is on one side of the passenger carrying
`area. Section 5.0 covers the requirements and tests to perform.
`
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`1.3 Subpart H — Flotation Requirements for Outboard Boats Rated for
`Engines of 2 Horsepower or Less
`
`FEDERAL LAW:
`
`183.301
`
`Applicability.
`
`(a) This subpart applies to monohull outboard boats that are:
`
`(1) Less than 20 feet in length; and
`
`(2) Rated for manual propulsion or outboard engines of 2 horsepower or
`less.
`
`(b) This subpart does not apply to sailboats, canoes, kayaks, inflatable boats,
`submersibles, surface effect vessels, amphibious vessels, and raceboats.
`
`183.301 Applicability
`
`Discussion:
`
`Manually propelled boats and boats rated for outboard engines of 2 HP or less must comply with
`the Modified Level Flotation requirements. As the name suggests, Modified Level Flotation is
`similar to Level Flotation, but with variations in the persons weight and capacity weight numbers.
`Section 6.0 discusses the calculations, tests and other requirements.
`
`NOTE:
`
`Level Flotation may also be applied to inboard boats, outboard boats of less than 2 HP, and non-powered
`boats. Nothing in the regulation says that a boat may not be manufactured to comply with a flotation
`system superior to the one required. These are only minimum requirements. Many manufacturers choose
`to install Level Flotation in boats that do not require it.
`
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`2.0 Definitions
`
`2.0 Definitions
`
`Every definition contained herein shall be assumed to be preceded by the following statement: “For
`the purpose of this guideline, we will use the following definitions:”
`
`NOTE:
`
`In the event of a question of interpretation of these definitions, consult with the United States Coast
`Guard.
`
`Mono-hull: any vessel on which, when it is at rest and carries its maximum rated horsepower
`capacity and maximum weight capacity, the line of intersection of the water surface and the hull
`forms a single closed curve. For example: a catamaran, trimaran or pontoon boat is not a mono-hull
`boat. However, it is important to observe that some small catamarans, when loaded, do form a
`single water line and must be considered mono-hulls.
`
`Race boat: Any vessel which is manufactured solely for use in sanctioned racing events, and is not
`intended for use as a recreational boat.
`
`Sailboat: A boat designed or intended to use sails as the primary means of propulsion.
`
`Basic Flotation: A flotation system which will keep a swamped boat from sinking when its
`passengers are in the water clinging to it, provided that the aggregate weight of the motor,
`passengers and equipment carried in or attached to the boat does not exceed the boat's maximum
`weight capacity. With Basic Flotation, the swamped boat may float at any attitude.
`
`Level Flotation: A flotation system that will keep a swamped boat and a specified quantity of the
`weights of its motor, equipment and passengers floating in an approximately level attitude.
`Sufficient stability is provided to prevent the swamped craft from capsizing in calm water when one-
`half of the passengers are evenly distributed at one side of the passenger carrying area and as low as
`possible in the boat. Level Flotation does not provide a self-righting capability.
`
`Modified Level Flotation: A flotation system that provides level flotation, as defined here, but with
`a reduction in the quantity of flotation required for passengers.
`
`Dead Weight: For inboards, sterndrives and airboats, the maximum weight capacity marked on
`the boat, minus the persons capacity marked on the boat.
`
`Horsepower Capacity: The maximum recommended horsepower capacity of a boat as stated on
`the boat's capacity plate.
`
`Passenger Carrying Area: [see 183.205 & 183.305] Each area in a boat in which persons can sit
`in a normal sitting position or stand while the boat is in operation. Figures 2.1 to 2.5 explain the
`passenger carrying area for different boat configurations.
`
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`2.1 Subpart F — Flotation Requirements for Inboards, Sterndrives and
`Airboats
`
`FEDERAL LAW:
`
`183.110
`
`Definitions.
`
`For the purpose of this subpart:
`
`•
`
`Bilge means the area in the boat, below a height of 4 inches measured
`from the lowest point in the boat where liquid can collect when the boat
`is in its static floating position, except engine rooms.
`
`• Connected means allowing a flow of water in excess of one-quarter
`ounce per hour from the engine room bilge into any other compartment
`with a 12-inch head of water on the engine room side of the bulkhead.
`
`•
`
`•
`
`Engine room bilge means the area in the engine room or a connected
`compartment below a height of 12 inches measured from the lowest
`point where liquid can collect in these compartments when the boat is in
`its static floating position.
`
`Engine room means the compartment where a permanently installed
`gasoline or diesel engine is installed, including connected compartments.
`
`• Open to atmosphere means a compartment that has at least 15 square
`inches of open area directly exposed to the atmosphere for each cubic
`foot of net compartment volume.
`
`•
`
`Sealed compartment means an enclosure that can resist an exterior
`water level of 12 inches without seepage of more than one-quarter fluid
`ounce per hour.
`
`183.110 Definitions
`
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`183.205 Definitions
`
`2.2 Subpart G — Flotation Requirements for Outboard Boats Rated for
`Engines of More Than 2 Horsepower
`
`FEDERAL LAW:
`
`183.205
`
`Passenger carrying area.
`
`(a) For the purpose of this section a boat is level when it is supported on its
`keel at the two points shown in Figure 2.
`
`(b) As used in this subpart, the term “passenger carrying area” means each
`area in a boat in which persons can sit in a normal sitting position or
`stand while the boat is in operation. Passenger carrying areas are
`illustrated in Figures 3 through 8.
`
`(c) The length of the passenger carrying area is the distance along the
`centerline of the boat between two vertical lines, one at the forward end
`and one at the aft end of the passenger carrying area when the boat is
`level as illustrated in Figures 3 and 4. For boats with a curved stem inside
`the passenger carrying area, the forward vertical line is where a line 45
`degrees to the horizontal when the boat is level is tangent to the curve
`of the stem, as illustrated in Figure 5. For boats with cabins, the forward
`vertical line is where there is a minimum distance of two feet between
`the inside top of the cabin and the water line formed when the boat is
`swamped and loaded with weights under Sec. 183.220 as illustrated in
`Figure 6.
`
`(d) The breadth of each passenger carrying area is the distance between two
`vertical lines at the mid-length, excluding consoles, of the passenger
`carrying area when the boat is level as illustrated in Figures 7 and 8. For
`boats with round chines inside the passenger carrying area, the vertical
`line is where a transverse line 45 degrees to the horizontal is tangent to
`the arc of the chine, as illustrated in Figure 8.
`
`NOTE:
`
`See Appendix B for 33 CFR Subpart H, Figures 2–13.
`
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`FEDERAL LAW:
`
`183.210
`
`Reference areas.
`
`(a) The forward reference area of a boat is the forward most 2 feet of the
`top surface of the hull or deck, as illustrated in Figure 9.
`
`(b) The aft reference area of a boat is the aft most two feet of the top
`surface of the hull or deck, as illustrated in Figure 9.
`
`NOTE:
`
`See Appendix B for 33 CFR Subpart H, Figures 2–13.
`
`FEDERAL LAW:
`
`183.215
`
`Reference depth.
`
`Reference depth is the minimum distance between the uppermost surface of
`the submerged reference area of a boat and the surface of the water
`measured at the centerline of the boat, as illustrated in Figure 10. If there is
`no deck surface at the centerline of the boat from which a measurement can
`be made, the reference depth is the average of two depth measurements
`made on opposite sides of, and at an equal distance from, the centerline of
`the boat.
`
`NOTE:
`
`See Appendix B for 33 CFR Subpart H, Figures 2–13.
`
`183.210–183.215 Definitions
`
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`183.305–183.310 Definitions
`
`2.3 Subpart H — Flotation Requirements for Outboard Boats Rated for
`Engines of 2 Horsepower or Less
`
`FEDERAL LAW:
`
`183.305
`
`Passenger carrying area.
`
`(a) For the purpose of this section, a boat is level when it is supported on its
`keel at the two points shown in Figure 2.
`
`(b) As used in this subpart, the term “passenger carrying area” means each
`area in a boat in which persons can sit in a normal sitting position or
`stand while the boat is in operation. Passenger carrying areas are illus-
`trated in Figures 3 through 8.
`
`(c) The length of each passenger carrying area is the distance along the center-
`line of the boat between two vertical lines, one at the forward end and one
`at the aft end of the passenger carrying area, when the boat is level, as
`illustrated in Figures 3 and 4. For boats with a curved stem inside the pas-
`senger carrying area, the forward vertical line is where a line 45 degrees
`to the horizontal when the boat is level is tangent to the curve of the
`stem, as illustrated in Figure 5. For boats with cabins, the forward vertical
`line is where there is a minimum distance of two feet between the inside
`top of the cabin and the water line formed when the boat is swamped
`and loaded with weights under Sec. 183.320 as illustrated in Figure 6.
`
`(d) The breadth of the passenger carrying area is the distance between two
`vertical lines at the mid-length, excluding consoles, of the passenger car-
`rying area when the boat is level as illustrated in Figures 7 and 8. For
`boats with round chines inside the passenger carrying area, the vertical
`line is where a transverse line 45 degrees to the horizontal is tangent to
`the arc of the chine, as illustrated in Figure 7.
`
`NOTE:
`
`See Appendix B for 33 CFR Subpart H, Figures 2–13.
`
`FEDERAL LAW:
`
`183.310
`
`Reference areas.
`
`(a) The forward reference area of a boat is the forward most 2 feet of the
`top surface of the hull or deck, as illustrated in Figure 9.
`
`(b) The aft reference area of a boat is the aft most two feet of the top
`surface of the hull or deck, as illustrated in Figure 9.
`
`NOTE:
`
`See Appendix B for 33 CFR Subpart H, Figures 2–13.
`
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`FEDERAL LAW:
`
`183.315
`
`Reference depth.
`
`Reference depth is the minimum distance between the uppermost surface of
`the submerged reference area of a boat and the surface of the water
`measured at the centerline of the boat, as illustrated in Figure 10. If there is no
`deck surface at the centerline of the boat from which a measurement can be
`made, the reference depth is the average of two depth measurements made
`on opposite sides of, and at an equal distance from, the centerline of the boat.
`
`NOTE:
`
`See Appendix B for 33 CFR Subpart H, Figure 10
`
`FIGURE 2.1
`
`Length of Passenger Carrying Area —
`Location of Center of Gravity of Weights
`
`183.315 Definitions
`
`FIGURE 2.2
`
`Length of Passenger Carrying Area — Boat with Deck
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`183.315 Definitions
`
`FIGURE 2.3
`
`Length of Passenger Carrying Area — Boat with Center Console
`
`FIGURE 2.4
`
`Length of Passenger Carrying Area — Open Boat with Curved Stem
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`FIGURE 2.5
`
`Length of Passenger Carrying Area — Boat with Cabin
`
`Loading Area: Forty percent of the length of the passenger carrying area and forty percent of the
`width of the passenger carrying area, centered in the passenger carrying area, and the position
`where the center of gravity of the test weights must be located. See figure 2.1.
`
`Reference Area: [see 183.210 & 183.310] The forward-most two feet and the aft-most two feet of
`the top surface of the hull or deck, as shown in figure 2.6.
`
`FIGURE 2.6
`
`Reference Area
`
`183.315 Definitions
`
`Reference Depth: [see 183.215 & 183.315] The minimum distance between the uppermost
`surface of the submerged reference area of a boat and the surface of the water measured at the
`centerline of the boat, as shown in figure 2.7.
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`Exhibit 1069
`Bazooka v. Nuhn - IPR2024-00098
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`183.315 Definitions
`
`FIGURE 2.7
`
`Reference Depth
`
`Static Floating Position: The attitude in which a boat floats in calm, fresh water with fuel tanks
`filled to rated capacity, but with no person or items of portable equipment aboard. The boat should
`include all permanently installed factory supplied equipment and options such as, but not limited to
`the engine or engines, batteries, seats, engine oil, railings, fishing towers, etc. It should not include
`portable gear such as, but not limited to flags, searchlights, movable cushions, mattresses, portable
`fire extinguishers, lines, fenders, chairs, tables, anchors or live bait wells. See figures 2.8 and 2.9.
`
`FIGURE 2.8
`
`Static Floating Position
`
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`Exhibit 1069
`Bazooka v. Nuhn - IPR2024-00098
`Page 17 of 72
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`FIGURE 2.9
`
`Location of Supports for Level Boat
`
`183.315 Definitions
`
`NOTE:
`
`Point A is exactly at the waterline at the Bow; Point B, exactly at the intersection of the waterline and the
`centerline of the transom. Points C and D are at the waterline amidships, at either side. If the boat is
`mounted in chocks, this line should be horizontal.
`
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`Exhibit 1069
`Bazooka v. Nuhn - IPR2024-00098
`Page 18 of 72
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`183.315 Definitions
`
`FIGURE 2.10 Swamped Waterline
`
`Swamped Waterline: A theoretical waterline above which dry weights will be used and below
`which submerged weights will be used, when calculating for the required flotation.
`
`Wd = Dry weight of deck (all above swamped waterline including deck, windshield, hardware,
`factory accessories, etc.).
`
`Wh = Dry weight of hull (all below swamped waterline).
`
`Bilge: The area in the boat, below a height of 4 inches measured from the lowest point in the boat,
`where liquid can collect when the boat is in its static floating position, except engine rooms.
`
`Connected: Allowing a flow of water in excess of one-quarter ounce per hour from the engine
`room bilge into any other compartment with a 12-inch head of water on the engine room side of
`the bulkhead.
`
`Engine room bilge: The area in the engine room or a connected compartment below a height of
`12 inches measured from the lowest point where liquid can collect in these compartments when the
`boat is in its static floating position.
`
`Engine room: The compartment where a permanently installed gasoline or diesel engine is
`installed, including connected compartments.
`
`Open to atmosphere: A compartment that has at least 15 square inches of open area directly
`exposed to the atmosphere for each cubic foot of net compartment volume.
`
`Sealed compartment: An enclosure that can resist an exterior water level of 12 inches without
`seepage of more than one-quarter fluid ounce per hour.
`
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`Exhibit 1069
`Bazooka v. Nuhn - IPR2024-00098
`Page 19 of 72
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`3.0 PRECONDITIONING
`
`Regardless of the flotation system, or the type of flotation materials used, the boat must be prepared
`and then pre-conditioned before beginning the test procedure. To prepare for preconditioning, the
`following must be done:
`
`•
`•
`
`the two largest air chambers, if used, must be vented at their high and low points.
`fuel tanks must be filled to their rated capacity with fuel and all external tank openings
`sealed.
`• water tanks and holding tanks must be filled with water.
`•
`provisions for flooded bait well, storage and iceboxes, and dry wells must be made.
`•
`all compartments that may entrap air must be thoroughly vented.
`•
`seats, seat cushions, and upholstery items must be vented so that they cannot entrap air.
`
`Following preparation as outlined above, the boat must be pre-conditioned. Preconditioning consists
`of swamping the boat for 18 hours. Weights to simulate the outboard motor, controls and battery
`where applicable (outboard boats), the persons capacity, and the dead weight in accordance with
`the type of flotation system must be in place. At the end of the pre-conditioning, testing may begin.
`The type of test(s) to be performed will be determined by the type of flotation system used, i.e.:
`Basic, Level or Modified Level.
`
`3.0 Preconditioning
`
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`Exhibit 1069
`Bazooka v. Nuhn - IPR2024-00098
`Page 20 of 72
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`183.220 Preconditioning
`
`3.1 Subpart F — Inboard Boats, Inboard/Outdrive (Sterndrive) and
`Airboats
`
`Inboard boats, Sterndrives and Airboats have to be submerged in fresh water for at least 18 hours.
`See 183.105.
`
`3.2 Subpart G — Outboard Boats Rated for More Than 2 Horsepower
`
`FEDERAL LAW:
`
`183.220
`
`Preconditioning for tests.
`
`A boat must meet the following conditions for at least 18 hours before the
`tests required by Secs. 183.225, 183.230, and 183.235
`
`(a) Manufacturer supplied permanent appurtenances such as windshields
`and convertible tops must be installed on the boat.
`
`(b) The boat must be loaded with a quantity of weight that, when
`submerged, is equal to the sum of the following:
`
`(1) The sum of 50 percent of the first 550 pounds of the persons
`capacity marked on the boat and 12-1/2 percent of the remainder of
`the persons capacity.
`
`(2) Twenty-five percent of the result of the following calculation, but not
`less than zero: The maximum weight capacity marked on the boat; less
`the weight shown in Column 6 of Table 4 for maximum horsepower
`marked on the boat; less the persons capacity marked on the boat.
`
`(c) The weights required by paragraph (b) of this section must be placed in
`the boat so that the center of gravity of each amount of weight required
`by paragraphs (b) (1) and (b) (2) of this section is within the shaded
`area illustrated in Figure 11. The location and dimensions of the shaded
`area are as follows:
`
`(1) The shaded area is centered at the mid-length of the passenger
`carrying area and at the mid-breadth of the boat;
`
`(2) The length of the shaded area, measured along the centerline of the
`boat, is equal to 40 percent of the length of the passenger carrying
`area of the boat; and
`
`(3) The breadth of the shaded area, measured at the midlength of the
`passenger carrying area, is equal to 40 percent of the breadth of the
`passenger carrying area of the boat.
`
`continues on page 18 . . .
`
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`Exhibit 1069
`Bazooka v. Nuhn - IPR2024-00098
`Page 21 of 72
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`FEDERAL LAW: Sec. 183.220 continued . . .
`
`(d) Weight must be placed in the normal operating position of the motor
`and controls and the battery in lieu of this equipment. The required
`quantity of weight used for this purpose depends upon the maximum
`rated horsepower of the boat being tested and is specified in Columns 2
`and 4 of Table 4 for the swamped weight of the motor and controls and
`for the submerged weight or the battery, respectively.
`
`(e) Permanent fuel tanks must be filled with fuel and each external opening
`into the fuel tank must be sealed.
`
`(f) The boat must be keel down in the water.
`
`(g) The boat must be swamped, allowing water to flow between the inside
`and outside of the boat, either over the sides, through a hull opening, or
`both. Entrapped air in the flooded portion of the boat must be
`eliminated.
`
`(h) Water must flood the two largest air chambers and all air chambers
`integral with the hull.
`
`183.220 Preconditioning
`
`NOTE:
`
`See Appendix A for Table 4. See Appendix B for 33 CFR Subpart H, Figures 2–13.
`
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`Exhibit 1069
`Bazooka v. Nuhn - IPR2024-00098
`Page 22 of 72
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`183.320 Preconditioning
`
`3.3 Subpart H — Flotation Requirements for Outboard Boats Rated for
`Engines of 2 Horsepower or Less
`
`FEDERAL LAW:
`
`183.320
`
`Preconditioning for tests.
`
`A boat must meet the following conditions for at least 18 hours before the
`tests required by Secs. 183.325, 183.330, and 183.335:
`
`(a) Manufacturer supplied permanent appurtenances such as windshields,
`and convertible tops must be installed on the boat.
`
`(b) The boat must be loaded with a quantity of weight that, when sub-
`merged, is equal to the sum of the following:
`
`(1) Two-fifteenths of the persons capacity marked on the boat.
`
`(2) Twenty-five percent of the result of the following calculation, but not
`less than zero: the maximum weight capacity marked on the boat; less
`the weight shown in column 6 of Table 4 for the maximum horsepower
`marked on the boat; less the persons capacity marked on the boat.
`
`(c) The weights required by paragraph (b) of this section are placed in the boat
`so that the center of gravity of each amount of weight required by para-
`graphs (b)(1) and (b)(2) of this section is within the shaded area illustrated
`in Figure 11. The location and dimensions of the shaded area are as follows:
`
`(1) The shaded area is centered at the mid-length of the passenger car-
`rying area and at the mid-breadth of the boat;
`
`(2) The length of the shaded area, measured along the centerline of the
`boat, is equal to 40 percent of the length of the passenger carrying
`area of the boat; and
`
`(3) The breadth of the shaded area, measured at the mid-length of the
`passenger carrying area, is equal to 40 percent of the breadth of the
`passenger carrying area of the boat.
`
`(d) Weight must be placed in the normal operating position of the motor
`and controls in lieu of this equipment. The quantity of weight used for
`this purpose depends upon the maximum rated horsepower of the boat
`being tested and is specified in Column 2 of Table 4 for the swamped
`weight of the motor and controls.
`
`(e) Permanent fuel tanks must be filled with fuel and each external opening
`into the fuel tank must be sealed.
`
`(f) The boat must be keel down in the water.
`
`(g) The boat must be swamped, allowing water