{"id":10972,"date":"2022-07-12T15:26:38","date_gmt":"2022-07-12T15:26:38","guid":{"rendered":"https:\/\/manuals-dev.seakeeper.com\/ride\/qs2-104-1-seakeeper-ride-installation-manual-mechanical-install\/7-measure-transom-angle\/7-2-measuring-on-a-boat-with-rocker\/"},"modified":"2025-07-30T14:53:40","modified_gmt":"2025-07-30T14:53:40","slug":"7-2-measuring-on-a-boat-with-rocker","status":"publish","type":"page","link":"https:\/\/manuals.seakeeper.com\/ride\/seakeeper-ride-mechanical-installation-manual\/7-measure-transom-angle\/7-2-measuring-on-a-boat-with-rocker\/","title":{"rendered":"6.2. Hulls with Unique Stern Features"},"content":{"rendered":"\n<p>For many planing hulls, the aft portion of the running surface is straight, however, there can be exceptions where there is a curvature, angle, or twist just forward of the transom. This may be referred to as a stern wedge, hook, or rocker. These types of features are generally added the hull to improve handling characteristics or induce a constant trim, adding a bow down moment during normal running conditions.<\/p>\n\n\n\n<p>Be sure to use a 3-ft (0.9 m) straight edge along the hull bottom when evaluating the transom angles to obtain a correct assessment of the running surface.<\/p>\n\n\n\n<p>If the Seal Plate were to be installed following the same angle as a stern wedge, it would create a permanent additional upward force in the aft of the boat, and the bow would be pushed down irreversibly. This incorrect assessment for installation is demonstrated below.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"766\" height=\"542\" src=\"https:\/\/manuals.seakeeper.com\/ride\/wp-content\/uploads\/red-strikes.jpg\" alt=\"\" class=\"wp-image-13114\"\/><figcaption class=\"wp-element-caption\">Figure 28 &#8211; Incorrect Assessment of Running Surface<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Measure the angle of the transom over a greater length of the running surface up to 3-ft (0.9 m) to ensure the proper angle.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"719\" height=\"509\" src=\"https:\/\/manuals.seakeeper.com\/ride\/wp-content\/uploads\/Assessing-Boat-with-Rocker.jpg\" alt=\"\" class=\"wp-image-11568\" style=\"width:645px;height:456px\"\/><figcaption class=\"wp-element-caption\">Figure 29 &#8211; Correct Assessment of Running Surface with an Extra Long Straight Edge<\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>For many planing hulls, the aft portion of the running surface is straight, however, there can be exceptions where there is a curvature, angle, or twist just forward of the transom. This may be referred to as a stern wedge, hook, or rocker. These types of features are generally added the hull to improve handling [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":10959,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"manual":[264],"model":[],"document_type":[],"hidden":[],"class_list":["post-10972","page","type-page","status-publish","hentry","manual-seakeeper-ride-mechanical-installation-manual"],"acf":[],"_links":{"self":[{"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/pages\/10972","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/comments?post=10972"}],"version-history":[{"count":13,"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/pages\/10972\/revisions"}],"predecessor-version":[{"id":16496,"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/pages\/10972\/revisions\/16496"}],"up":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/pages\/10959"}],"wp:attachment":[{"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/media?parent=10972"}],"wp:term":[{"taxonomy":"manual","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/manual?post=10972"},{"taxonomy":"model","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/model?post=10972"},{"taxonomy":"document_type","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/document_type?post=10972"},{"taxonomy":"hidden","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/ride\/wp-json\/wp\/v2\/hidden?post=10972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}