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Martin
Martin outboards were a brand that had a lot of potential to be a major player in the outboard world but could not face the competition from OMC, Mercury and others. They were manufactured by National Pressure Cooker Company of Eau Claire, Wisconsin from 1946 through 1954. Martin motors were of a very high quality and sported a number of innovative features - the most important was the mechanically actuated intake poppet valve. Without some type of check valve between the crankcase and carburetor, two stoke motors would not run since air would not flow in one direction through the carburetor (remember the bernoulli principal from physics class?). To remedy this problem the intake design on two stroke motors falls into three categories;
George Martin improved the reed valve concept by using mechanically actuated poppet valves. These mechanical valves were timed to stay open longer and seal better than the simple flap on a reed valve. Actuated by the engine crankshaft, the design was simplicity in itself and made for a motor that ran much better at low and mid range speeds.
My youngest boy "Manning A Martin" a few years ago. Motor is a 1953 Martin "75" Twist Shift with Aquamatic speed control. A fine running and very enjoyable outboard. Atco Boatimpeller | Bendix | British Seagull | Caille | Champion | Chris Craft | Dragon Fly | Elgin | Elto | Evinrude | Flambeau | Johnson | Lauson | Lockwood Ash | Mac10 Wankel | Martin | Mercury | Misc.Motors | Oliver | Outboard Jet 200 | Pluvier | Scott-Atwater | Tohatsu | Tomos | Volvo | West Bend | Whirlwind(Soviet) | Wizard| Yamaha | Zundapp
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