{"product_id":"os-max-55hz-r-engine-15650-copy","title":"OS.MAX 55HZ Hyper ENGINE 15630","description":"\u003cp\u003eOS.MAX 55HZ Hyper ENGINE 15630\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003eEploded view: \u003ca href=\"https:\/\/www.os-engines.co.jp\/english\/line_up\/engine\/heri\/img\/manual\/15630_1.pdf\" title=\"Exploded view\" rel=\"noopener\" target=\"_blank\"\u003eView\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003eInstructions: \u003ca href=\"https:\/\/www.os-engines.co.jp\/english\/line_up\/engine\/heri\/img\/manual\/15630.pdf\" title=\"Manual\"\u003eManual\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003eDimensions: \u003ca href=\"https:\/\/www.os-engines.co.jp\/line_up\/engine\/heri\/img\/heri\/pdf\/15630_1.pdf\"\u003eSize\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned primarily with the demands of the 3D pilot in mind, the 55HZ Hyper delivers 61 size performance in a 46 size crankcase. That power comes from the extensive experience that OS has gained over many years and working extensively with the world's top pilots to refine all aspects of the engine without compromise in any area.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eBy using the same mounting layout, you can drop a 55HZ into any model that previously suited the 50SX-H without modification. Just the area around the new carburettor is a little bigger and may require adjustments to the cooling shroud.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis entirely new engine shares almost nothing with the 50SX-H and has some new features not seen on an engine of this size before. The rear bearing is now designed to resist corrosion; the new 40L carburettor has three adjustments to cater for idle, mid-range and full power. Until now, these features were the domain of 61 class engines or bigger. The throttle arm has four leaves so that push-pull control is easy from any direction. The heatsink head is bigger for improved cooling as well.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe main mechanics of the engine itself are the same as the regular Max 55HZr\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplacement\u003c\/th\u003e\n\u003ctd\u003e8.93 cc\/0.55 cu.in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore\u003c\/th\u003e\n\u003ctd\u003e23.0 mm\/0.91 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003ctd\u003e21.5 mm\/0.85 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003ctd\u003e2.1 ps\/2.07 hp\/17,000 r.p.m.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePractical RPM range\u003c\/th\u003e\n\u003ctd\u003e2,000-20,000 r.p.m.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine Weight\u003c\/th\u003e\n\u003ctd\u003e408.0 g\/14.39 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.rcjapan.net\/index.php?main_page=product_info\u0026amp;cPath=80_413_419\u0026amp;products_id=11904\" style=\"font-size: 0.875rem;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eContents of box:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOS 55HZ engine\u003c\/p\u003e\n\u003cp\u003eNo. 8 plug \u003c\/p\u003e\n\u003cp\u003eInstructions\u003c\/p\u003e\n\u003c\/div\u003e","brand":"OS","offers":[{"title":"Default Title","offer_id":56301432865153,"sku":"15630","price":269.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/5047\/3601\/files\/55hzhr.jpg?v=1789846029","url":"https:\/\/helihensonrc.co.uk\/products\/os-max-55hz-r-engine-15650-copy","provider":"Heli Henson RC","version":"1.0","type":"link"}