Motor De Avión A Escala

Discover the 2-stroke Model Airplane Engine Ever wondered how that little motor on the front of your model airplane delivers such amazing power? Model airplane engines come in many shapes and sizesfrom many manufacturers. By far the most common for the moment is the 2-stroke 'glow' engine though the modern electric motor is making rapid inroads. The 2-stroke model airplane engine is an internalcombustion engine usually burning 'glow' or 'nitro' fuel consisting mostly of alcohol with nitro-methane to help combustion and castor oil for lubrication of the metal parts. There are also 4-strokeglow engines that work on the 4-stroke principle. While these two types of model airplane engine produce the same result, and use the same fuel, they accomplish this goal in very different ways andhave different characteristics. For the moment we're just going to consider the 2-stroke engine. RC model airplane engines working on a two stroke principle mean that there is fuel ignition on everysecond stroke of the piston in the cylinder. When the piston is on its down stroke down the cylinder, fuel and air will enter the combustion chamber between the top of the piston and the cylinder head.When the piston reaches the bottom of its stroke and starts to rise again it then compresses the fuel/air mixture in the rapidly shrinking volume of the combustion chamber. The fuel/air mixture isignited by the glow plug just as the piston reaches the end of its upstroke. The glow plus is so called because it contains a platinum wire that continues to glow from a catalytic process and the heat ofthe last fuel ignition. The new explosion forces the piston back into the next down stroke. This sounds very simple but the clever part is that the upper, combustion part of the cylinder and the lowercrankcase are connected not only by the cylinder bore but also by a transfer port which enables gases to move from the crankcase to the combustion chamber. By careful design, the inlet valve for...