{"id":1383,"date":"2021-01-08T20:55:26","date_gmt":"2021-01-08T20:55:26","guid":{"rendered":"https:\/\/www.dniceboat.org\/?page_id=1383"},"modified":"2023-05-31T13:30:44","modified_gmt":"2023-05-31T13:30:44","slug":"dn-boom-specifications","status":"publish","type":"page","link":"https:\/\/www.dniceboat.org\/dn-class-info\/dn-ice-yacht-specifications\/dn-boom-specifications\/","title":{"rendered":"DN Boom Specifications"},"content":{"rendered":"

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DN Specifications<\/h3>\n

D. Boom<\/h1>\n

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global_colors_info=”{}”]<\/p>\n

IDNIYRA OFFICIAL SPECIFICATIONS<\/h2>\n

REVISED MAY 2023<\/strong>
Note: Dimensions are given in inches in the English System (except as noted) and in millimeters (MM) in the metric system.<\/p>\n

[\/et_pb_text][et_pb_text admin_label=”D. Boom” _builder_version=”4.21.0″ _module_preset=”default” hover_enabled=”0″ locked=”off” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n\n\n\n\n\n\n\n
D. Boom<\/strong><\/td>\nEnglish<\/strong><\/td>\n\u00a0<\/td>\nMetric<\/strong><\/td>\n\u00a0<\/td>\n<\/tr>\n
\u00a0<\/td>\nMax<\/td>\nMin<\/td>\nMax<\/td>\nMin<\/td>\n<\/tr>\n
1. Length (from mast):<\/td>\n108<\/td>\nOpt<\/td>\n2743<\/td>\nOpt<\/td>\n<\/tr>\n
2. Depth (from outhaul bracket to 12\u201d, 305mm from, mast):<\/td>\n3<\/td>\n2-1\/2<\/td>\n76.2<\/td>\n63.6<\/td>\n<\/tr>\n
3. Thickness (from outhaul bracket to 12\u201d,305mm from mast):<\/td>\n1-25\/32<\/td>\n1-1\/4<\/td>\n45.25<\/td>\n31.8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

4. Only one boltrope tunnel is permitted. The boltrope tunnel shall be substantially straight with boom relaxed. An aluminum boltrope tube is allowed. It must weigh less than three ounces per foot (280 grams\/meter). The internal diameter must be at least 3\/8\u2019\u2019 (9.5mm). The cross section of the tube is optional.<\/p>\n

5. Cross section profile is optional. Boom may be hollow.<\/p>\n

6. Boom jaws are optional. Devices which prevent or hinder movement of the boom on the mast are prohibited except for check wire.<\/p>\n

7. Boom shall be constructed of wood or aluminum. Fiberglass may be added for reinforcement only<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ module_alignment=”right” custom_padding=”0|0px|0|0px|true|false” locked=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_divider color=”rgba(9,80,92,0.14)” divider_style=”dashed” _builder_version=”4.16″ global_colors_info=”{}”][\/et_pb_divider][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ _module_preset=”default” locked=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Interpretations Section” _builder_version=”4.7.7″ _module_preset=”default” global_module=”1316″ global_colors_info=”{}”]<\/p>\n

INTERPRETATIONS OF THE OFFICIAL SPECIFICATIONS BY THE TECHNICAL COMMITTEE<\/h2>\n

Effective May 31, 2020<\/strong><\/p>\n

[\/et_pb_text][et_pb_text admin_label=”Interp Boom” _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

D. Boom<\/p>\n

01\/01\/79: The boom jaw may not have a projection on the bearing surface that will fit into the mast slot and thereby affect the rotation of the mast.<\/p>\n

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DN INFO<\/a><\/h3>\n

Specifications & Plans<\/a>
Rules of Ice Sailing<\/a>
Yearbook<\/a>
Championship History<\/a>
International Rank List<\/a>
Videos<\/a><\/p>\n

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DN Specifications D. BoomIDNIYRA OFFICIAL SPECIFICATIONS REVISED MAY 2023Note: Dimensions are given in inches in the English System (except as noted) and in millimeters (MM) in the metric system. D. Boom English \u00a0 Metric \u00a0 \u00a0 Max Min Max Min 1. Length (from mast): 108 Opt 2743 Opt 2. 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