OS Glow Plug No.7

The all-new OS No.7 Glow 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. It is also especially recommended for helicopter engines because it offers superior performance around hovering r.p.m. range which is critical for smooth and powerful 3D or F3C type flights.