уважаю мнение специалистов,в теории не силён,но перетачивая стальные роторы китайских моторов на алюминиевые,особой разницы в тяге мотора не обнаружил,а темболее в два раза.,а вот разница в массе была ощутима ,да и нагрев поменьше стал,объясните . Сорри, не по теории а на деле пробовали без кольца? какие результаты?
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