{"product_id":"swan-2-x-2-twin-cylinder-launch-engine-stock-code-2120","title":"Swan 2 x 2 twin cylinder launch engine","description":"\u003cp\u003eA set of castings for a \"Swan Double 2\" twin cylinder launch  engine. Originally designed by Nick Stothard, this is a twin cylinder simple  engine, based on an earlier design by Clarksons or York. It incorporates pumps  at each of the bedplate and Stephenson's reversing gear and would be ideally  suited for a small full-size steam boat.    \u003c\/p\u003e\u003cp\u003eWork completed to date is to a good standard and includes machined bedplate,  five-bearing steel crankshaft which turns freely, cylinders bored, valve chests  and standards machined. The rest of the castings are either unmachined or just  faced up - the only thing missing is, I believe, the flywheel. This is drawn as  a simple marine-type disc flywheel and could easily be made from a slice of  steel bar. (Note that there is another box of gunmetal castings not shown in the  picture).    \u003c\/p\u003e\u003cp\u003eThere is a complete set of original drawings with the engine, a file of CAD  drawings and photographs of a complete engine.    \u003c\/p\u003e\u003cp\u003eBore\/stroke 2 x 2 inches\u003cbr\u003e    \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54010071843157,"sku":"2120","price":725.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/2120-1_3b195966-9a76-4f20-95d9-afb37606b28b.webp?v=1779900281","url":"https:\/\/stationroadsteam.com\/products\/swan-2-x-2-twin-cylinder-launch-engine-stock-code-2120","provider":"Station Road Steam","version":"1.0","type":"link"}