{"id":11702,"date":"2026-04-05T11:30:56","date_gmt":"2026-04-05T11:30:56","guid":{"rendered":"https:\/\/daivings.lv\/?p=11702"},"modified":"2026-04-05T12:07:33","modified_gmt":"2026-04-05T12:07:33","slug":"drager-lar-ccr-serija-kas-ir-militaras-inzenierijas-paraugs-takstiskajam-operacijam","status":"publish","type":"post","link":"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/","title":{"rendered":"Dr\u00e4ger LAR CCR series, a model of military engineering for tactical operations"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Drager_LAR_V_un_LAR_VII_taktiska_precizitate\" >Dr\u00e4ger LAR V and LAR VII, tactical precision<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Drager_LAR_V\" >Dr\u00e4ger LAR V<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Drager_LAR_VII_Combi\" >Dr\u00e4ger LAR VII (Combi)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#JJ-CCR_tehniskas_nirsanas_standarts\" >JJ-CCR Technical Diving Standard<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Tehniskie_parametri\" >Technical parameters:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Tehniskais_salidzinajums_Drager_pret_JJ-CCR\" >Technical comparison Dr\u00e4ger vs. JJ-CCR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Prieksrocibas_un_trukumi\" >Advantages and disadvantages<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Kadel_izveleties_Drager_LAR_seriju\" >Why choose the Dr\u00e4ger LAR series?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Kadel_izveleties_JJ-CCR\" >Why choose JJ-CCR?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Secinajums\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Teoretiska_sagatavotiba\" >Theoretical preparation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Iekartas_sagatavosana_un_parbaudes\" >Equipment preparation and checks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Praktiskas_iemanas_udeni_Drill_phase\" >Practical skills in water (Drill phase)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Sistemas_izskalosana_Purging_procedure\" >Purging procedure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#%E2%80%9CTactical_Swimming%E2%80%9D_un_peldspeja\" >Tactical Swimming and Buoyancy<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Arkartas_situaciju_risinasana\" >Emergency response<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#LAR_VII_Specifika_Parslegsanas\" >LAR VII Specifics: Switching<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/#Sertifikacija\" >Certification<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Drager_LAR_V_un_LAR_VII_taktiska_precizitate\"><\/span>Dr\u00e4ger LAR V and LAR VII, tactical precision<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Dr\u00e4ger LAR series is designed for special task forces (combat swimmers). Their main characteristics are: <strong>compactness, low magnetic signature and reliability<\/strong> in extreme conditions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Drager_LAR_V\"><\/span>Dr\u00e4ger LAR V<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It is a pure oxygen closed-cycle apparatus (O2 CCR) designed for shallow operations (typically down to 6-10 meters).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Operating principle:<\/strong> A mechanical oxygen supply valve (lung-demand valve) that responds to the diver&#039;s inhalation.<\/li>\n\n\n\n<li><strong>Advantages:<\/strong> No electronics (can&#039;t go wrong), complete absence of bubbles, minimal weight and size.<\/li>\n\n\n\n<li><strong>Usage:<\/strong> Infiltration, mine neutralization in shallow waters.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Drager_LAR_VII_Combi\"><\/span>Dr\u00e4ger LAR VII (Combi)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An evolutionary leap that combines oxygen CCR and semi-closed cycle (SCR) with Nitrox.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hybrid system:<\/strong> The diver can switch between pure O2 for shallow dives and Nitrox for greater depths (up to 24m or 54m depending on configuration).<\/li>\n\n\n\n<li><strong>Pneumatic control:<\/strong> The machine still maintains a high level of mechanical safety without relying on complex sensors and computers.<\/li>\n\n\n\n<li><strong>Low acoustic noise:<\/strong> Specifically designed to remain undetected by underwater sonar systems.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"JJ-CCR_tehniskas_nirsanas_standarts\"><\/span>JJ-CCR Technical Diving Standard<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If Dr\u00e4ger is meant for \u201cinvisible access\u201d, then <strong>JJ-CCR<\/strong> is designed for \u201cdeep research.\u201d It is an eCCR (electronic CCR) in which the partial pressure of oxygen ($PpO_2$) is controlled by a computer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tehniskie_parametri\"><\/span>Technical parameters:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Depth:<\/strong> Certified to 100m+, limited only by breathing gas (Trimix) composition.<\/li>\n\n\n\n<li><strong>Control:<\/strong> Two independent computers (typically a Shearwater platform) and 3 galvanic oxygen sensors.<\/li>\n\n\n\n<li><strong>Construction:<\/strong> Aluminum body (\u201cbarrel\u201d) that houses the cylinders and canister, making it one of the most durable devices on the market.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tehniskais_salidzinajums_Drager_pret_JJ-CCR\"><\/span>Technical comparison Dr\u00e4ger vs. JJ-CCR<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Function<\/strong><\/td><td><strong>Dr\u00e4ger LAR VII<\/strong><\/td><td><strong>JJ-CCR<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Type<\/strong><\/td><td>Mechanical O2 CCR\/SCR<\/td><td>Electronic (eCCR)<\/td><\/tr><tr><td><strong>Gas control<\/strong><\/td><td>Manual\/Pneumatic<\/td><td>Automatic (Solenoid + Computer)<\/td><\/tr><tr><td><strong>Maximum depth<\/strong><\/td><td>~24m (tactical limit)<\/td><td>100m+<\/td><\/tr><tr><td><strong>Scrubber (CO2) volume<\/strong><\/td><td>~2.3 kg (axial)<\/td><td>~2.5 kg (axial\/radial)<\/td><\/tr><tr><td><strong>Weight (ready for operation)<\/strong><\/td><td>~13 kg<\/td><td>~34 kg<\/td><\/tr><tr><td><strong>Location<\/strong><\/td><td>Chest (front-mounted)<\/td><td>Back-mounted<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-1024x768.webp\" alt=\"\" class=\"wp-image-11708\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-1024x768.webp 1024w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-300x225.webp 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-768x576.webp 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-1536x1152.webp 1536w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-16x12.webp 16w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-1000x750.webp 1000w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-230x173.webp 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-350x263.webp 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-480x360.webp 480w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII.webp 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Dr\u00e4ger LAR VII<\/strong><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Prieksrocibas_un_trukumi\"><\/span>Advantages and disadvantages<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Kadel_izveleties_Drager_LAR_seriju\"><\/span>Why choose the Dr\u00e4ger LAR series?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Weight and mobility:<\/strong> The frontal position makes it easy to use backpacks or jump out of a plane\/boat.<\/li>\n\n\n\n<li><strong>Simplicity:<\/strong> Fewer potential points of failure. No batteries to run out or sensors to float.<\/li>\n\n\n\n<li><strong>Low profile:<\/strong> Ideal for tight spaces and jobs requiring maximum hydrodynamics.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2-1024x768.webp\" alt=\"\" class=\"wp-image-11710\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2-1024x768.webp 1024w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2-300x225.webp 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2-768x576.webp 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2-1536x1152.webp 1536w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2-16x12.webp 16w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2-1000x750.webp 1000w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2-230x173.webp 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2-350x263.webp 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2-480x360.webp 480w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-VII-v2.webp 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Kadel_izveleties_JJ-CCR\"><\/span>Why choose JJ-CCR?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Depth range:<\/strong> Thanks to the use of helium mixtures and precise control of $PpO_2$, it is indispensable for cave and wreck diving.<\/li>\n\n\n\n<li><strong>Decompression efficiency:<\/strong> The computer maintains optimal $PpO_2$ throughout the dive, maximizing the release of nitrogen\/helium from the tissues.<\/li>\n\n\n\n<li><strong>Modularity:<\/strong> Possibility to attach cylinders of various sizes and additional equipment directly to the frame of the device.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Secinajums\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The choice between these systems depends on <strong>missions<\/strong>If the goal is to move seamlessly in shallow water with minimal weight, <strong>Dr\u00e4ger LAR V\/VII<\/strong> is unbeatable. On the other hand, if you need to perform complex decompression dives at great depths, where precise control of the gas mixture is required, <strong><a href=\"https:\/\/daivings.lv\/tag\/jj-ccr\/\" type=\"post_tag\" id=\"1613\">JJ-CCR<\/a><\/strong> is the industry standard.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong> Dr\u00e4ger series apparatuses (especially magnetically neutral ones) are often only available to military structures and require specific training that differs drastically from civilian CCR methodology.<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"589\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-1024x589.jpg?v=1775388639\" alt=\"\" class=\"wp-image-11704\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-1024x589.jpg?v=1775388639 1024w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-300x172.jpg?v=1775388639 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-768x441.jpg?v=1775388639 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-1536x883.jpg?v=1775388639 1536w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-18x10.jpg?v=1775388639 18w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-1000x575.jpg?v=1775388639 1000w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-230x132.jpg?v=1775388639 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-350x201.jpg?v=1775388639 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR-480x276.jpg?v=1775388639 480w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/04\/Drager-LAR.jpg?v=1775388639 1865w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Dr\u00e4ger LAR 8000<\/figcaption><\/figure>\n\n\n\n<p class=\"has-large-font-size wp-block-paragraph\">Training for work with <strong>Dr\u00e4ger LAR<\/strong> series devices <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is significantly different from civilian CCR (recreational\/technical) diving. It is not focused on enjoying the underwater world, but on <strong>tactical task execution<\/strong>, safety and absolute knowledge of the equipment under stressful conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This training is usually divided into three main stages: <strong>theory<\/strong>, <strong>work &quot;in the dry&quot;<\/strong> and <strong>practical lessons in the water<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Teoretiska_sagatavotiba\"><\/span>Theoretical preparation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Before a diver touches the apparatus, he must understand the physiology involved in breathing pure oxygen:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Oxygen toxicity ($CNS$):<\/strong> Since LAR V uses 100% $O_2$, the main risk is oxygen-induced cramps. Divers learn the limits of $PpO_2$ (usually the limit is <strong>1.3 \u2013 1.4 bar<\/strong>, which means a maximum depth of around 6 meters).<\/li>\n\n\n\n<li><strong>Risk of hypoxia:<\/strong> \u201cThe Silent Killer.\u201d Learn how improper loop purging can lead to oxygen concentrations dropping below critical levels.<\/li>\n\n\n\n<li><strong>Soda lime ($CO_2$ absorbent) physics:<\/strong> Operating time depending on water temperature and physical activity.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Iekartas_sagatavosana_un_parbaudes\"><\/span>Equipment preparation and checks<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In a military environment, mistakes are not allowed, so <strong>Pre-dive check<\/strong> is an iron ritual:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Filling the canister:<\/strong> Proper filling of the absorbent to avoid \u201cchanneling\u201d (when exhaled gas finds its way through the gaps without being purified from $CO_2$).<\/li>\n\n\n\n<li><strong>Vacuum and pressure tests:<\/strong> Check the system for leaks. This is critical because any leaks can allow water to enter the soda lime, creating a \u201ccaustic cocktail.\u201d<\/li>\n\n\n\n<li><strong>Lung Demand Valve Testing:<\/strong> Ensuring that gas delivery occurs automatically upon inhalation.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Praktiskas_iemanas_udeni_Drill_phase\"><\/span>Practical skills in water (Drill phase)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Training begins in the pool and continues in open water, often at night or in conditions of limited visibility.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sistemas_izskalosana_Purging_procedure\"><\/span>Purging procedure<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is the most important skill. The diver must purge the air (nitrogen) from his lungs and the breathing loop, replacing it with pure oxygen. Improper purging is the most common cause of unconsciousness in shallow water.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%80%9CTactical_Swimming%E2%80%9D_un_peldspeja\"><\/span>Tactical Swimming and Buoyancy<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Because the LAR is a chest positioning device, the center of gravity changes.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Trim (position):<\/strong> The diver learns to swim horizontally without creating surface ripples or bubbles.<\/li>\n\n\n\n<li><strong>Bubble discipline:<\/strong> Learn to control exhalation through the nose (which is prohibited) so that no bubbles burst under the edge of the mask.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Arkartas_situaciju_risinasana\"><\/span>Emergency response<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Water inlet into the loop:<\/strong> Procedures for removing water through the exhalation valve.<\/li>\n\n\n\n<li><strong>Transition to open cycle (Bailout):<\/strong> If the system becomes unbreathable, switch to a backup cylinder (usually a small, separate cylinder).<\/li>\n\n\n\n<li><strong>Snorkeling:<\/strong> In tactical diving, losing a mask should not interrupt the mission.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"LAR_VII_Specifika_Parslegsanas\"><\/span>LAR VII Specifics: Switching<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If the training takes place on LAR VII, a section on <strong>operating modes<\/strong>:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>O2 mode:<\/strong> Infiltration in shallow water.<\/li>\n\n\n\n<li><strong>Nitrox mode:<\/strong> Deeper phase (using a proportioning valve). The diver must be able to switch the gas supply with his eyes closed and understand which mode the apparatus is in by the position of the mechanical levers.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sertifikacija\"><\/span>Certification<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Unlike PADI or IANTD courses, military training ends with <strong>operational qualifications<\/strong>This means that the diver has not simply \u201clearned to dive\u201d, but is able to perform a task (such as minelaying or reconnaissance) while fully controlling the LAR apparatus.<\/p>","protected":false},"excerpt":{"rendered":"<p>Dr\u00e4ger LAR V and LAR VII, tactical precision The Dr\u00e4ger LAR series is designed for special task units (combat swimmers). Their main characteristics are compactness, low magnetic signature and reliability in extreme conditions. Dr\u00e4ger LAR V It is a pure oxygen closed-circuit apparatus [\u2026]<\/p>","protected":false},"author":1,"featured_media":11703,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1600],"tags":[],"class_list":["post-11702","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tehniska-nirsana"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dr\u00e4ger LAR CCR s\u0113rija, milit\u0101r\u0101s in\u017eenierijas paraugs takstiskaj\u0101m oper\u0101cij\u0101m - Daivings.lv<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/daivings.lv\/en\/drager-lar-ccr-series-which-is-a-model-of-military-engineering-for-tactical-operations\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dr\u00e4ger LAR CCR s\u0113rija, milit\u0101r\u0101s in\u017eenierijas paraugs takstiskaj\u0101m oper\u0101cij\u0101m - Daivings.lv\" \/>\n<meta property=\"og:description\" content=\"Dr\u00e4ger LAR V un LAR VII, taktisk\u0101 precizit\u0101te Dr\u00e4ger LAR s\u0113rija ir izstr\u0101d\u0101ta speci\u0101lo uzdevumu vien\u012bb\u0101m (kaujas peld\u0113t\u0101jiem). 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To galvenie raksturlielumi ir kompaktums, zems magn\u0113tiskais paraksts un uzticam\u012bba ekstrem\u0101los apst\u0101k\u013cos. 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