We're getting really serious with the engine - into the 'monster' class. This is the ROTO Motor horizontal four at 170 cc from the Czech Republic - a well noted high quality manufacturer of many model engines. Certainly a highly desirable addition to your engine accumulation either for large scale models or just to enjoy having such a magnificent piece of engineering.
Running on Coolpower Blue oil at 40:1 with 95 RON petrol it gave a superb performance. Using a 30 x 12 wooden propeller I recorded 5,500 maximum and 750 idle RPM. All starting was by hand and the engine will start quite readily at the very low idle RPM.
Brian Oily.
Негізгі бет Ғылым және технология ROTO 4 TEST
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