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| It may be no exaggeration to say that the glow plug is an important factor to extract maximum performance and power from a glow engine. O.S. glow plugs have been used repeatedly as a trusted brand by modelers around the world. Among others, the ever popular No.8 has been known as the industry standard plug by 2-stroke engine users. Now about to be released, the all-new OS No.7 plug lies in the medium range, slightly hotter than No.8. Every aspect of the No.7 plug including the coil is newly designed and developed. It covers wide range of engines and with rich mixture, offers stable idling, broad peak needle and punchy acceleration. This next generation glow plug has been developed focusing on easier handling at low and medium speed range than No.8. The No.7 suits most 2-stroke airplane, helicopter and car (expect turbo heads) engines. No.7 is especially recommended for helicopter engines because it offers superior performance around hovering r.p.m. range which is critical for smooth and powerful 3D and F3C type flight. | |||||||
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