{"id":19117,"date":"2024-08-30T13:43:12","date_gmt":"2024-08-30T13:43:12","guid":{"rendered":"https:\/\/manuals.seakeeper.com\/seakeeper\/seakeeper-3-operation-manual-90379-5-3-232-4223-to-current-copy\/system-operation-2\/introduction\/"},"modified":"2024-08-30T13:43:12","modified_gmt":"2024-08-30T13:43:12","slug":"introduction","status":"publish","type":"page","link":"https:\/\/manuals.seakeeper.com\/seakeeper\/seakeeper-3-operation-manual-90379-6\/system-operation-2\/introduction\/","title":{"rendered":"2.1  System Overview Introduction"},"content":{"rendered":"\n<p>Reference Documents<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.seakeeper.com\/technical-library\/?type=&amp;product=&amp;search=90601\" target=\"_blank\" rel=\"noreferrer noopener\">TB-90601 &#8211; Safe Boat Operation<\/a><\/li>\n<\/ul>\n\n\n\n<p>The <span translate=\"no\">Seakeeper<\/span> 3 uses gyroscopic principles to dampen cyclic boat roll motions in waves and wakes. In installations involving multiple <span translate=\"no\">Seakeeper<\/span>s, each <span translate=\"no\">Seakeeper<\/span> operates independently of one another; therefore, this manual only discusses the operation of a single unit.<\/p>\n\n\n\n<p>Reduction of boat roll is a function of the boat\u2019s displacement, transverse metacentric height(GMT), and hull damping as well as the operating conditions (speed and heading with respect to waves) and sea state. <span translate=\"no\">Seakeeper<\/span>\u2019s active control regulates the hydraulic brake to ensure the <span translate=\"no\">Seakeeper<\/span>\u2019s anti-roll torque is maximized irrespective of hull characteristics or operating conditions.<\/p>\n\n\n\n<p>Operation of the <span translate=\"no\">Seakeeper<\/span> 3 requires mechanical, electrical, and plumbing interfaces with the boat. Figure 1 illustrates the interconnection of these components and their interface with the boat. <strong>The <span translate=\"no\">Seakeeper<\/span> 3 requires a connection to a display to support the <span translate=\"no\">Seakeeper<\/span> Application; display options include a compatible MFD or optional <span translate=\"no\">Seakeeper<\/span> 5\u201d Touch Display.<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK3-OM-Intro-1.jpg\" alt=\"\" class=\"wp-image-16018\" width=\"715\" height=\"445\" srcset=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK3-OM-Intro-1.jpg 931w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK3-OM-Intro-1-768x478.jpg 768w\" sizes=\"auto, (max-width: 715px) 100vw, 715px\" \/><figcaption class=\"wp-element-caption\"><strong><em>Figure 1<\/em><\/strong><em> &#8211; <span translate=\"no\">Seakeeper<\/span> 3 System Interfaces<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<p><span translate=\"no\">Seakeeper<\/span> 3 technical specifications provided in Section 6, list the power consumption, total weight, and dimensions of the major components. Gyroscopic principals that apply to boat roll control are discussed on<br><span translate=\"no\">Seakeeper<\/span>\u2019s website at <a href=\"http:\/\/www.seakeeper.com\/seakeeper\/\">www.seakeeper.com<\/a>. The <span translate=\"no\">Seakeeper<\/span> website also contains videos of <span translate=\"no\">Seakeeper<\/span> operation and a variety of different boats operating in waves with the <span translate=\"no\">Seakeeper<\/span> on and off. It is  recommended that the reader play these videos prior to reading the remainder of this manual.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2.2  PRECAUTIONS<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Warnings-2.png\" alt=\"\" class=\"wp-image-9472\" width=\"420\" height=\"95\" srcset=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Warnings-2.png 1681w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Warnings-2-768x174.png 768w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Warnings-2-1536x347.png 1536w\" sizes=\"auto, (max-width: 420px) 100vw, 420px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-vivid-red-color has-text-color\"><strong>There is a large torque about the gimbal axis when the  <span translate=\"no\">Seakeeper<\/span> is precessing. <span translate=\"no\">Seakeeper<\/span> cover panels are provided to prevent personnel or equipment from contacting the <span translate=\"no\">Seakeeper<\/span> while it is in operation.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center\">__________________________________________________________________________________________________<\/p>\n\n\n\n<p class=\"has-vivid-red-color has-text-color\"><strong>The <span translate=\"no\">Seakeeper<\/span> covers should not be stood on or have anything placed on top. The covers should always be in place during operation.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center\">__________________________________________________________________________________________________<\/p>\n\n\n\n<p class=\"has-vivid-red-color has-text-color\"><strong>If it is ever necessary to touch the <span translate=\"no\">Seakeeper<\/span> while the flywheel is spinning, the <span translate=\"no\">Seakeeper<\/span> must be locked (taken out of SEA MODE) at the display to stop the <span translate=\"no\">Seakeeper<\/span> from precessing.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center\">__________________________________________________________________________________________________<\/p>\n\n\n\n<p class=\"has-vivid-red-color has-text-color\"><strong>Because of remote start capabilities in some installations, <span translate=\"no\">Seakeeper<\/span> maintenance should not be attempted unless the <span translate=\"no\">Seakeeper<\/span> is locked, the flywheel has stopped spinning, and AC power has been disconnected for at least 10 minutes.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<p><span translate=\"no\">Seakeeper<\/span> 3 technical specifications provided in Section: Specifications and Summary, list the power consumption, total weight, and dimensions of the major components. Gyroscopic principals that apply to boat roll control are discussed on <span translate=\"no\">Seakeeper<\/span>\u2019s website at <a rel=\"noreferrer noopener\" href=\"http:\/\/www.seakeeper.com\" data-type=\"URL\" data-id=\"www.seakeeper.com\" target=\"_blank\">www.seakeeper.com<\/a>. The <span translate=\"no\">Seakeeper<\/span> website also contains videos of <span translate=\"no\">Seakeeper<\/span> operation and a variety of different boats operating in waves with the <span translate=\"no\">Seakeeper<\/span> on and off. It is recommended that the reader play these videos prior to reading the remainder of this manual.<\/p>\n\n\n\n<p>The gimbal angle and the rate of rotation about the gimbal axis (termed precession rate) play an important role in its operation. These parameters are illustrated in the figure below. At zero degree gimbal angle, the sphere is vertical; it can precess a maximum of +\/- 67 degrees about this position. The amount of torque that the <span translate=\"no\">Seakeeper<\/span> exerts on a boat\u2019s hull to counter the wave induced roll is directly proportional to the precession rate. The farther the <span translate=\"no\">Seakeeper<\/span> is from vertical (zero degrees) the lower the anti-roll torque. The vertical arrows in Figure 2 illustrate the direction of the forces that the <span translate=\"no\">Seakeeper<\/span> exerts on the boat\u2019s hull to damp roll motion.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"3000\" height=\"1383\" src=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Precession-1-3000x1383.png\" alt=\"\" class=\"wp-image-16032\" srcset=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Precession-1-3000x1383.png 3000w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Precession-1-768x354.png 768w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Precession-1-1536x708.png 1536w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Precession-1-2048x944.png 2048w\" sizes=\"auto, (max-width: 3000px) 100vw, 3000px\" \/><figcaption class=\"wp-element-caption\"><strong>ANTI-ROLLTORQUE TO STARBOARD                                                                                ANTI-ROLL TORQUE TO PORT<\/strong><br><em><strong>Figure 2 \u2013 <\/strong><span translate=\"no\">Seakeeper<\/span> Precession<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<p><span translate=\"no\">Seakeeper<\/span> precession is actively controlled by an electronic controller and a hydraulic brake throughout each roll cycle so the <span translate=\"no\">Seakeeper<\/span> supplies the maximum anti-roll torque and limits mechanical contact with the hard stops that limit the maximum gimbal angle travel to +\/- 67 degrees.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Safe Boat Operation<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/CAUTION.png\" alt=\"\" class=\"wp-image-10247\" width=\"141\" height=\"124\"\/><\/figure>\n<\/div>\n\n\n<p>Boat operators are advised that the <span translate=\"no\">Seakeeper<\/span>\u2019s sole function is to dampen a boat\u2019s cyclic roll motions. The<br><span translate=\"no\">Seakeeper<\/span> is not, and is not intended to be, a substitute for adequate hull stability about the pitch, roll and yaw axes and the <span translate=\"no\">Seakeeper<\/span> is not designed to prevent any instability due to improper boat operation, including, without limitation, any aggressive maneuvers at high speed. During aggressive maneuvers at high speed, the <span translate=\"no\">Seakeeper<\/span> outputs a constant pitch moment which can create a small bow-down or bow-up trim change.<\/p>\n\n\n\n<p>Improper boat operation including, without limitation, aggressive maneuvers at high speed can result in the boat becoming unstable. If you intend to operate the boat in such a manner, you should lock the <span translate=\"no\">Seakeeper<\/span><br>in the vertical position before operating the boat in that manner. This is easily accomplished by turning the boat to starboard at slow speed in the Stabilize mode. After turning to starboard for 5 seconds, turn the Stabilize mode off while continuing to turn and then go to the Service Page on the display and confirm the Gyro Angle is within +\/- 10 degrees of 0 degrees.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Reference Documents The Seakeeper 3 uses gyroscopic principles to dampen cyclic boat roll motions in waves and wakes. In installations involving multiple Seakeepers, each Seakeeper operates independently of one another; therefore, this manual only discusses the operation of a single unit. Reduction of boat roll is a function of the boat\u2019s displacement, transverse metacentric height(GMT), [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":19115,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"manual":[342],"model":[],"document_type":[],"hidden":[],"class_list":["post-19117","page","type-page","status-publish","hentry","manual-seakeeper-3-operation-manual-90379-6"],"acf":[],"_links":{"self":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/19117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/comments?post=19117"}],"version-history":[{"count":0,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/19117\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/19115"}],"wp:attachment":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/media?parent=19117"}],"wp:term":[{"taxonomy":"manual","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/manual?post=19117"},{"taxonomy":"model","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/model?post=19117"},{"taxonomy":"document_type","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/document_type?post=19117"},{"taxonomy":"hidden","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/hidden?post=19117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}