{"product_id":"r-5-aircraft-engine","title":"R-5 Aircraft Engine","description":"\u003cp\u003eThe UGEARS R-5 Aircraft Engine is a working model of the Kinner five-cylinder radial engine, certified in 1935 and used in trainer aircraft through the 1930s and World War II. Plug in a USB-C cable, flip the switch, and the pistons, valves and propeller run in sequence, so you can see exactly how a radial engine works. The kit combines wood, metal and electronic components in one build.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFive pistons moving in the correct 1-3-5-2-4 firing order\u003c\/li\u003e\n\u003cli\u003eSynchronized valvetrain with metal pushrods and compression springs\u003c\/li\u003e\n\u003cli\u003eGear-driven valve timing and a visible crankshaft\u003c\/li\u003e\n\u003cli\u003eMilled propeller with a safety release that disengages if it meets resistance\u003c\/li\u003e\n\u003cli\u003eOn\/off switch in the base and control board built into the stand\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e electric motor via USB-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e wood, metal and electronic components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly:\u003c\/strong\u003e no glue or special tools needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstructions:\u003c\/strong\u003e step by step, in 11 languages\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eMore engines and machines are in our \u003ca href=\"\/collections\/build-kits-for-adults\"\u003ebuild kits for adults\u003c\/a\u003e.\u003c\/p\u003e","brand":"UGEARS USA","offers":[{"title":"Default Title","offer_id":68047289188457,"sku":"70283","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0265\/1537\/4185\/files\/R-5AircraftEngine1x1_49a80597-4c49-400d-86d9-cfbb9e052b7a.jpg?v=1794461444","url":"https:\/\/makersthings.com\/products\/r-5-aircraft-engine","provider":"maker's things","version":"1.0","type":"link"}