{"product_id":"bolton-number-9-triple-expansion-engine","title":"Bolton Number 9 Triple Expansion Engine","description":"\u003cp\u003eO.B. Bolton No 9 Triple Expansion Engine 7\/8”,1 ¼” and 1 ¾” by 1 ¼” Stroke\u003c\/p\u003e\n\u003cp\u003eLength 10”, Height 9”, Width 6 ¾”\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eTriple Expansion Steam Engine Model\u003c\/b\u003e\u003cbr\u003eDesigned by O.B. Bolton, this iconic triple expansion steam engine is a true masterpiece in the world of model engineering. Originally published in the 1940s and later revised in a series featured in \u003ci\u003eModel Engineer\u003c\/i\u003e magazine (1985–1986), this design has been widely embraced and built by countless model engineers worldwide.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eE and J Winter Bolton Scale Models is proud to present a fresh perspective on this iconic model with a new 86 page, full colour book by James Clark. This comprehensive guide delves into every aspect of the model, including construction, building jigs, timing, and testing of the engine.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eTo complement the book, we also offer a modern 28 page A4 set of metric drawings by Ron Collins. These updated drawings incorporate design refinements from James Clark on the original O.B. Bolton and J.P. Bertinat designs. O.B Boltons original drawings 3 AO sheets are also still available for order.\u003c\/p\u003e\n\u003cp\u003eThe casting set is in Gunmetal and one of the most complete ever put on the market. \u003c\/p\u003e\n\u003cp\u003ePlease note that castings are to order at this time and customers should expect a 5-8 week delivery time.\u003c\/p\u003e","brand":"E and J Winter - Bolton Scale Models","offers":[{"title":"Original O.B. Bolton Drawings","offer_id":30599203160119,"sku":"","price":25.0,"currency_code":"GBP","in_stock":true},{"title":"Bolton Number 9 - Making a Marine Triple Expansion Steam Engine Book","offer_id":46399451955387,"sku":"","price":22.0,"currency_code":"GBP","in_stock":true},{"title":"28 A4 Page Drawings by Ron Collins","offer_id":30599203225655,"sku":"","price":25.0,"currency_code":"GBP","in_stock":true},{"title":"Casting Set","offer_id":30599203192887,"sku":"","price":978.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0076\/2504\/8119\/files\/Front_small_3845776a-a521-4227-bcf2-8eee5be6fd9f.jpg?v=1735249580","url":"https:\/\/ejwinter.com.au\/en-gb\/products\/bolton-number-9-triple-expansion-engine","provider":"E and J Winter - Bolton Scale Models","version":"1.0","type":"link"}