These engines use a special type of fuel that not only provides the energy for combustion, but also serves as a coolant and lubricant. It’s basically alcohol mixed with oil and a touch of nitromethane. Other than the plug and fuel, glow engines work the much the same way as any other internal combustion engine, but there are some distinct differences that are important to know. Two Stroke vs. Starsat sr x95usb upgrade free download 2013 version.

Four-Strokes Engines There are two types of nitro RC engines used with radio controlled airplanes. There are two cycle (2-stoke) and four cycle (4-stroke) nitro engines. A two-stroke RC engine fires every time the piston reaches the top of the cylinder while a four-stroke engine fires every other time. Four-stroke engines fire every other revolution which produces a very low pitched growl that sounds a lot like a full-scale airplane! For this reason most large aerobatic and giant scale planes including warbirds use 4-stroke engines. Four-stroke nitro RC engines are also easier on fuel consumption. Four stroke engines can be a bit more tricky to tune than 2-stroke engines.

This is really a non-issue if you invest in a good tachometer. Four-stroke nitro RC engines produce more torque at lower RPM’s compared to a two-stroke RC engine.

Shop for 2-Stroke Glow Engines at AMain Hobbies. O.S.55AX ABL Glow Airplane Engine w/E3071 Muffler & 40K Carburetor. Tuning 2 and 4 Cycle Glow Engines May 15, 2008 Tuning any glow engine for peak performance is a relatively simple process, but is made more difficult for the typical novice RC flyer because of a lack of knowledge of carburetor basics and engine instructions that leave a lot to be desired. What follows is a straightforward discussion of engine.

This means that four stroke will use a much larger diameter propeller than a two-stroke engine. Ball Bearings vs. M crew server free download. Bushings Some nitro RC engines are available with ball bearings supporting the crankshaft while others have bushings that support the crankshaft.

It is easy to tell if a nitro RC engine has bearings or not just by looking at it. Take a look at this O.S. 46AX engine above. The area highlighted red is where the bearings sit in the housing. 46LA engine on the right does not have bearings.

Although bushed engines are cheaper, they are not nearly as powerful or efficient as engines with bearings. This is because the bearings do a much better job of minimizing friction than bushings do. ABC Nitro RC Engines There are two different ways that nitro RC engine manufactures seal the piston with the sleeve in the bore.