ISO 12217-3:2015 小型船—安定性と浮力の評価と分類—パート3：船体長が6m未満のボート | ページ 6

3.1.1

デザイン部門

ボートが適切であると評価される海と風の状態の説明

注記1: 9.2も参照。

3.1.2

くぼみ

負荷条件と対応するトリムの範囲内で水を保持する可能性のある、空気に開放された容積。

注記 1: ISO 12216 の要件に従ってクロージャーを備えたキャビン、シェルター、またはロッカーは、くぼみではありません。

注記 2:海に向かって後方に開いているコックピットは、くぼみと見なされます。ブルワークまたはコーミングのないフラッシュ デッキはリセスではありません。

3.1.3

クイックドレンリセス

ISO 11812 の「クイックドレインコックピットとリセス」のすべての要件を満たすリセス

注記 1: ISO 11812 には、ほとんどのセーリング ディンギーが準拠できない要件が含まれています。

注記2:コックピットは、その特性により、ある設計カテゴリーでは排水が速いと見なされますが、より高いカテゴリーではそうではないと見なされる場合があります。

3.1.4

防水凹部

ISO 11812 の「防水コックピットと凹部」のすべての要件を満たす凹部

注記1：この用語は、水密性と敷居の高さに関する要件のみを意味し、排水に関する要件を意味するものではありません。

3.1.5

完全密閉型ボート

注記 1設計カテゴリー C の一部の艇に許可されているくぼみのサイズは、6.4 の要件によって制限されています。

3.1.6

部分的に保護されたボート

注記 1:これは図 1 に示されている。

3.1.7

居住可能なボート

1つまたは複数の寝台、ベンチ、パイプベッド、ハンモック、またはボートが進行中に寝るために使用できる同様の場所が取り付けられた堅い屋根を備えた完全に密閉されたキャビンを持つボート

注記 1：頑丈なドアの代わりに布製のクロージャーが使用されている場合、または船室に布製の側面がある場合、ボートは「居住可能」であると見なされます。

注記 3:寝室に使用される場所の最小寸法は、対角線の長さが 1.5 m, 幅が最も広い部分で 0.4 m, 長さ全体で最小 0.4 m の頭上空間があります。ビルダーが保管専用に指定し、オーナーズマニュアルで参照されているキャビンソールとコンパートメントは含まれていません。

3.2.1

downflooding opening

any opening in the hull or deck (including the edge of a recess) that might admit water into the interior or bilge of a boat, or a recess, apart from those excluded in 6.3.1.5

3.2.2

downflooding height

h_D

smallest height above the waterline to any downflooding opening (apart from those excluded in 6.3.1.5) when the boat is upright in calm water in the maximum load condition, measured to the critical downflooding point which might be within pipes or ducts inside the hull

Note 1 to entry: Downflooding height is expressed in metres.

3.2.3

downflooding angle

ϕ_D

angle of heel at which the downflooding openings (apart from those excluded in 6.3.1.5) become immersed, when the boat is in calm water and in the appropriate loading condition at design trim

Note 1 to entry: Downflooding angle may be determined using either of the methods in Annex B.

Note 2 to entry: Where openings are not symmetrical about the centreline of the boat, the case resulting in the smallest angle is used.

Note 3 to entry: Downflooding angle is expressed in degrees.

3.3.1

empty craft condition

3.4.1

crew

collective description of all persons on board a boat

3.4.2

crew limit

CL

maximum number of persons (with a mass of 75 kg each) used when assessing the design category

Note 1 to entry: A half number denotes a child weighing less than 37,5 kg.

3.4.3

design trim

longitudinal attitude of a boat when upright, with crew, fluids, stores and equipment in the positions designated by the designer or builder

Note 1 to entry: Crew are assumed to be in positions designated by the builder. In the absence of builder’s instructions, crew and gear are assumed to be positioned in a manner most likely to provide a favourable test result, provided that such positions are consistent with the proper operation of the boat and that crew are assumed to be either standing at designated positions fitted with handholds, or seated.

3.4.4

essential safety equipment

loose equipment considered essential to the safe operation of the boat, which may include distress flares and rockets, lifebuoy with light and battery, first aid box, wire cutters for standing rigging, lifejackets, safety harnesses and lines, portable fire fighting equipment, flashlight, binoculars, radio (e.g. VHF), ball and cone visual signals, charts and navigational publications in the corresponding design category

Note 1 to entry: Quantities carried may vary according to the size of boat, design category and crew limit.

Note 2 to entry: As a guide, the mass allowed for essential safety equipment but excluding any liferaft(s) should not be less than 3L_H (kg).

Note 3 to entry: Liferafts are not considered to be essential safety equipment in design categories C and D.

3.4.5

flotation element

element which provides “buoyancy” to the boat and thus influences the flotation characteristics

3.4.5.1

air tank

tank made of hull construction material, and integral with hull or deck structure

3.4.5.2

air container

container made of stiff material, and not integral with the hull or deck structure

3.4.5.3

low density material

material with a specific gravity of less than 1,0 primarily incorporated into the boat to enhance the buoyancy when swamped

3.4.5.4

rib collar

heavy duty tubular collar fitted around the periphery of the boat and always intended to be inflated whenever the boat is being used

3.4.5.5

inflated bag

bag made of flexible material, not integral with hull or deck, accessible for visual inspection and intended always to be inflated when the boat is being used

Note 1 to entry: Bags intended to be inflated automatically when immersed (e.g. at the masthead as a means to prevent inversion) are not regarded as flotation elements.

3.4.6

length of hull

L_H

length of the hull measured according to ISO 8666

Note 1 to entry: Length of hull is expressed in metres.

3.4.7

loaded waterline

waterline of the boat when upright in the maximum load condition

3.4.8

reference sail area

A_S

actual profile area of sails set abaft a mast, plus the maximum profile area of all masts, plus reference triangle area(s) forward of each mast as defined in ISO 8666

Note 1 to entry: Sail area is expressed in square metres.

3.4.9

recess retention level

level of water in recesses, when the boat is at design trim, at which 20% of the uppermost periphery of the surrounding coaming (measured in horizontal plane parallel to waterline at design trim) would be covered by water, assuming that all gates, doors or drainage openings are considered to be sealed.

Note 1 to entry: This definition is illustrated in Annex I.

3.4.10

standard equipment

devices including outboard motors (excluding those for tenders), loose furniture and furnishings such as tables, chairs, non-permanently installed mattresses, curtains, etc., portable bilge pumping equipment, anchors, chain, warps, sails, loose external equipment such as fenders, boathook and boarding ladder, oars (if appropriate), and essential safety equipment

Note 1 to entry: Where outboard engine(s) are fitted, the heaviest engine(s) recommended for the boat by the manufacturer is(are) included, the mass allowed for outboard engines and their batteries (if not permanently installed) not being less than that given in columns 1 and 3 of Tables C.1 and C.2.

Note 2 to entry: As a guide, the mass allowed for anchors, anchor chain, warps and fenders should not be less than about 0,25L_H^2,2 (kg). In some cases up to double this mass may be appropriate.

3.4.11

watertightness degree

degree of watertightness as specified in ISO 11812 and ISO 12216

3.4.12

windage area

A_lv

projected profile area of hull, superstructures, deckhouses, outboard motors and spars above the waterline at the appropriate loading condition, the boat being upright

Note 1 to entry: Canopies and screens that can be erected when under way in bad weather are included, e.g. cockpit dodgers, pram hoods.

Note 2 to entry: Windage area is expressed in square metres.

3.4.13

angle of vanishing stability

ϕ_V

angle of heel nearest the upright (other than upright) in the appropriate loading condition at which the transverse stability righting moment is zero; determined assuming that there is no offset load, and that all potential downflooding openings are assumed to be watertight

Note 1 to entry: Where a boat has recesses which are not quick-draining, ϕ_V is to be taken as the downflooding angle to these recesses, unless the loss of buoyancy due to such recesses is fully accounted for in determining ϕ_V.

Note 2 to entry: Angle of vanishing stability is expressed in degrees.

3.4.14

under way

not at anchor, or made fast to the shore, or aground