{"product_id":"second-hand-tartan-twin-77-44cc-vintage-twin-cylinder-glow-model-aircraft-engine","title":"Second Hand Tartan Twin 77 44cc Vintage Twin-Cylinder Glow Model Aircraft Engine","description":"\u003cp dir=\"auto\" data-start=\"748\" data-end=\"1044\" class=\"PDq2pG_selectionAnchorContainer\"\u003eVintage \u003cstrong data-start=\"756\" data-end=\"774\"\u003eTartan Twin 77\u003c\/strong\u003e large-capacity model aircraft engine, manufactured in Italy and designed specifically for large radio-controlled model aircraft. This is the distinctive \u003cstrong data-start=\"928\" data-end=\"971\"\u003eflat\/opposed twin-cylinder glow version\u003c\/strong\u003e, with two horizontally opposed cylinders and a central induction system.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"1046\" data-end=\"1608\"\u003eThe engine is from the earlier \u003cstrong data-start=\"1077\" data-end=\"1116\"\u003e44 cc version of the Tartan Twin 77\u003c\/strong\u003e, with a total displacement of approximately \u003cstrong data-start=\"1161\" data-end=\"1194\"\u003e43.75 cc (2.669 cubic inches)\u003c\/strong\u003e. Each cylinder is approximately 22 cc. Period manufacturer information describes the Super Tartan Twin Glow as a purpose-designed model-aircraft engine rather than an industrial engine conversion. It features an aluminium piston\/chrome-plated aluminium cylinder arrangement, twin piston rings and a crankshaft supported by two ball bearings plus an additional roller bearing. \u003cspan class=\"contents\" data-content-reference-start=\"1554\" data-content-reference-end=\"1574\"\u003e\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"1610\" data-end=\"1987\"\u003eThe engine uses \u003cstrong data-start=\"1626\" data-end=\"1654\"\u003emethanol-based glow fuel\u003c\/strong\u003e and has twin glow plugs, one for each cylinder. The horizontally opposed cylinder configuration gives the engine a distinctive appearance and helps produce a smooth, balanced power delivery. The engine incorporates a reed-valve induction system and is capable of producing substantial torque at relatively moderate propeller speeds.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"1989\" data-end=\"2390\"\u003ePublished period specifications give the \u003cstrong data-start=\"2030\" data-end=\"2062\"\u003e44 cc Super Tartan Twin Glow\u003c\/strong\u003e an output of approximately \u003cstrong data-start=\"2090\" data-end=\"2122\"\u003e4.75 horsepower at 9,100 rpm\u003c\/strong\u003e, using a \u003cstrong data-start=\"2132\" data-end=\"2157\"\u003e20 × 6 inch propeller\u003c\/strong\u003e. The same factory test data records approximately \u003cstrong data-start=\"2208\" data-end=\"2237\"\u003e28.67 lb of static thrust\u003c\/strong\u003e with that propeller. These figures were obtained using the supplied muffler arrangement and without tuned exhaust. \u003cspan class=\"contents\" data-content-reference-start=\"2319\" data-content-reference-end=\"2339\"\u003e\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"2392\" data-end=\"2674\"\u003eThe Tartan Twin 77 was designed for \u003cstrong data-start=\"2428\" data-end=\"2456\"\u003elarge-scale R\/C aircraft\u003c\/strong\u003e, with the contemporary literature placing the larger Super Tartan twins in the \u003cstrong data-start=\"2536\" data-end=\"2563\"\u003e16–30 lb aircraft class\u003c\/strong\u003e, making them suitable for large aerobatic, scale and competition models. \u003cspan class=\"contents\" data-content-reference-start=\"2586\" data-content-reference-end=\"2606\"\u003e\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"2676\" data-end=\"3185\"\u003eThe engine is particularly interesting from a historical perspective. Tartan engines were Italian-made and were marketed internationally through distributors including \u003cstrong data-start=\"2844\" data-end=\"2861\"\u003eWorld Engines\u003c\/strong\u003e in the United States. The Twin 77 was available in both \u003cstrong data-start=\"2918\" data-end=\"2961\"\u003eglow and ignition\/petrol configurations\u003c\/strong\u003e, and later versions of the engine were produced in a larger approximately 50 cc capacity. Owners and collectors generally distinguish the earlier 44 cc Twin 77 from these later engines. \u003cspan class=\"contents\" data-content-reference-start=\"3080\" data-content-reference-end=\"3112\"\u003e\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"3187\" data-end=\"3579\"\u003eThis particular engine has the characteristic earlier \u003cstrong data-start=\"3241\" data-end=\"3310\"\u003eTartan Twin 77 crankcase and twin finned cylinder\/head assemblies\u003c\/strong\u003e, together with the period central carburettor and yellow air-intake arrangement. The engine shows normal cosmetic signs of age and previous use, including tarnishing, staining and marks to the aluminium castings. It appears substantially complete from the photographs.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"3581\" data-end=\"3800\"\u003e\u003cstrong data-start=\"3581\" data-end=\"3613\"\u003eThe engine turns over freely\u003c\/strong\u003e, as confirmed by the seller. It has not been stated to have been recently run, so it should be advertised as \u003cstrong data-start=\"3723\" data-end=\"3767\"\u003euntested\/running condition not confirmed\u003c\/strong\u003e rather than as a running engine.\u003c\/p\u003e\n\u003cp dir=\"auto\" data-start=\"3802\" data-end=\"4118\"\u003eThis is an especially interesting engine for collectors of vintage model aircraft engines. The large 44 cc capacity, twin-cylinder configuration, Italian manufacture and distinctive Tartan design make it a considerably more unusual item than the common 60-size and 90-size single-cylinder engines of the same period.\u003c\/p\u003e\n\u003ch3 data-section-id=\"q8tozf\" dir=\"auto\" data-start=\"4120\" data-end=\"4148\"\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul data-start=\"4150\" data-end=\"5066\"\u003e\n\u003cli data-section-id=\"ltakbd\" data-start=\"4150\" data-end=\"4176\"\u003e\n\u003cstrong data-start=\"4152\" data-end=\"4169\"\u003eManufacturer:\u003c\/strong\u003e Tartan\u003c\/li\u003e\n\u003cli data-section-id=\"1r62k3j\" data-start=\"4177\" data-end=\"4212\"\u003e\n\u003cstrong data-start=\"4179\" data-end=\"4206\"\u003eCountry of manufacture:\u003c\/strong\u003e Italy\u003c\/li\u003e\n\u003cli data-section-id=\"1ftx6s3\" data-start=\"4213\" data-end=\"4263\"\u003e\n\u003cstrong data-start=\"4215\" data-end=\"4225\"\u003eModel:\u003c\/strong\u003e Tartan Twin 77 \/ Super Tartan Twin 77\u003c\/li\u003e\n\u003cli data-section-id=\"mhz6im\" data-start=\"4264\" data-end=\"4328\"\u003e\n\u003cstrong data-start=\"4266\" data-end=\"4275\"\u003eType:\u003c\/strong\u003e Twin-cylinder, horizontally opposed, two-stroke glow\u003c\/li\u003e\n\u003cli data-section-id=\"1drlokw\" data-start=\"4329\" data-end=\"4389\"\u003e\n\u003cstrong data-start=\"4331\" data-end=\"4348\"\u003eDisplacement:\u003c\/strong\u003e approximately \u003cstrong data-start=\"4363\" data-end=\"4389\"\u003e43.75 cc \/ 2.669 cu in\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"iz69lo\" data-start=\"4390\" data-end=\"4447\"\u003e\n\u003cstrong data-start=\"4392\" data-end=\"4425\"\u003eIndividual cylinder capacity:\u003c\/strong\u003e approximately 21.9 cc\u003c\/li\u003e\n\u003cli data-section-id=\"10rbb2d\" data-start=\"4448\" data-end=\"4484\"\u003e\n\u003cstrong data-start=\"4450\" data-end=\"4459\"\u003eFuel:\u003c\/strong\u003e Methanol-based glow fuel\u003c\/li\u003e\n\u003cli data-section-id=\"1jo6t1h\" data-start=\"4485\" data-end=\"4512\"\u003e\n\u003cstrong data-start=\"4487\" data-end=\"4501\"\u003eInduction:\u003c\/strong\u003e Reed valve\u003c\/li\u003e\n\u003cli data-section-id=\"1x36six\" data-start=\"4513\" data-end=\"4538\"\u003e\n\u003cstrong data-start=\"4515\" data-end=\"4527\"\u003eCooling:\u003c\/strong\u003e Air cooled\u003c\/li\u003e\n\u003cli data-section-id=\"mhhfps\" data-start=\"4539\" data-end=\"4587\"\u003e\n\u003cstrong data-start=\"4541\" data-end=\"4561\"\u003ePublished power:\u003c\/strong\u003e approximately \u003cstrong data-start=\"4576\" data-end=\"4587\"\u003e4.75 hp\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1psyjr0\" data-start=\"4588\" data-end=\"4644\"\u003e\n\u003cstrong data-start=\"4590\" data-end=\"4616\"\u003ePublished power speed:\u003c\/strong\u003e approximately \u003cstrong data-start=\"4631\" data-end=\"4644\"\u003e9,100 rpm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t9r0fr\" data-start=\"4645\" data-end=\"4686\"\u003e\n\u003cstrong data-start=\"4647\" data-end=\"4672\"\u003eDocumented propeller:\u003c\/strong\u003e \u003cstrong data-start=\"4673\" data-end=\"4686\"\u003e20 × 6 in\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"bhulhy\" data-start=\"4687\" data-end=\"4745\"\u003e\n\u003cstrong data-start=\"4689\" data-end=\"4718\"\u003eDocumented static thrust:\u003c\/strong\u003e approximately \u003cstrong data-start=\"4733\" data-end=\"4745\"\u003e28.67 lb\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"g3xnxa\" data-start=\"4746\" data-end=\"4798\"\u003e\n\u003cstrong data-start=\"4748\" data-end=\"4773\"\u003eAircraft application:\u003c\/strong\u003e Large-scale R\/C aircraft\u003c\/li\u003e\n\u003cli data-section-id=\"ndr42b\" data-start=\"4799\" data-end=\"4890\"\u003e\n\u003cstrong data-start=\"4801\" data-end=\"4831\"\u003eRecommended aircraft size:\u003c\/strong\u003e approximately \u003cstrong data-start=\"4846\" data-end=\"4858\"\u003e16–30 lb\u003c\/strong\u003e, depending upon model and setup\u003c\/li\u003e\n\u003cli data-section-id=\"1evsuuc\" data-start=\"4891\" data-end=\"4929\"\u003e\n\u003cstrong data-start=\"4893\" data-end=\"4911\"\u003eConfiguration:\u003c\/strong\u003e Flat\/opposed twin\u003c\/li\u003e\n\u003cli data-section-id=\"b685hs\" data-start=\"4930\" data-end=\"4977\"\u003e\n\u003cstrong data-start=\"4932\" data-end=\"4940\"\u003eEra:\u003c\/strong\u003e Approximately late 1980s\/early 1990s\u003c\/li\u003e\n\u003cli data-section-id=\"17rvyf1\" data-start=\"4978\" data-end=\"5066\"\u003e\n\u003cstrong data-start=\"4980\" data-end=\"4994\"\u003eCondition:\u003c\/strong\u003e Used vintage engine; turns over freely; running condition not confirmed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" data-start=\"5068\" data-end=\"5378\"\u003eThe period catalogue evidence is particularly useful here: a \u003cstrong data-start=\"5129\" data-end=\"5142\"\u003eJuly 1988\u003c\/strong\u003e Model Builder advertisement lists the Super Tartan Twin Glow as a 43.75 cc engine and gives it the 20 × 6 \/ 9,100 rpm \/ 4.75 hp figures above. It also lists the corresponding Twin Ignition version.\u003c\/p\u003e","brand":"Tartan","offers":[{"title":"Default Title","offer_id":57603619684732,"sku":"SMC-SH-Tartan-77","price":174.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0432\/8584\/0033\/files\/IMG_5744-2.jpg?v=1791387012","url":"https:\/\/sussex-model-centre.co.uk\/products\/second-hand-tartan-twin-77-44cc-vintage-twin-cylinder-glow-model-aircraft-engine","provider":"Sussex Model Centre","version":"1.0","type":"link"}