{"product_id":"pale-prana-rosse-cetma-composites","title":"Prana Blades - Red","description":"\u003ch2\u003ePrana Blades - Cetma Composites\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ePrana Blades\u003c\/strong\u003e are an advanced model specifically designed for freedivers and spearfishers who demand uncompromising equipment in terms of quality and materials.\u003c\/p\u003e\n\u003ch3\u003eMaterials and Construction\u003c\/h3\u003e\n\u003cp\u003eThe blades are made of \u003cstrong\u003e75% carbon\u003c\/strong\u003e and \u003cstrong\u003e25% S-Glass\u003c\/strong\u003e, a high-strength fiberglass derived from the aerospace industry. Manufacturing involves an exclusive high-pressure, high-temperature, vacuum process, with hot-melt impregnation using tetra-functional resin. This method ensures a defect-free component with a consistent fiber\/resin ratio along the entire blade, delivering strength and lightness.\u003c\/p\u003e\n\u003ch3\u003eEngineered Design for Efficient Finning\u003c\/h3\u003e\n\u003cp\u003eThe calibrated distribution of stiffness and mass along the blade promotes resonance within a range of natural frequencies that match the typical finning frequency. This configuration optimizes thrust transmission, reducing fatigue and increasing the fluidity of underwater movement.\u003c\/p\u003e\n\u003cp\u003eWater rails: constant-profile structure with a height of 10 mm, designed for optimal stability and control of trim.\u003c\/p\u003e\n\u003cp\u003eBlade size: 667 x 185 mm, balanced to ensure efficient propulsion.\u003c\/p\u003e\n\u003ch3\u003eVariants\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStiffness options: \u003cstrong\u003e25 soft\u003c\/strong\u003e and \u003cstrong\u003e30 medium\u003c\/strong\u003e to suit different thrust and finning requirements.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLogo and stringer colors:  red, orange, and yellow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eThe Prana blades are specifically designed to improve \u003cstrong\u003eresponsiveness\u003c\/strong\u003e and \u003cstrong\u003ehydrodynamic efficiency\u003c\/strong\u003e during spearfishing and freediving, making finning smoother and less tiring even during extended sessions.\u003c\/p\u003e","brand":"Cetma","offers":[{"title":"25 - Soft","offer_id":58070195503449,"sku":"PRSRDRD","price":265.0,"currency_code":"EUR","in_stock":true},{"title":"30 - Medium","offer_id":58070195536217,"sku":"PRMRDRD","price":265.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/6732\/1945\/files\/plale-cetma-prana-rosse.png?v=1778878131","url":"https:\/\/deepbluesub.com\/en\/products\/red-prana-blades-cetma-composites","provider":"DEEP BLUE - Freediving \u0026 Spearfishing","version":"1.0","type":"link"}