China Jingdao Machinery & Electronic Co., Ltd. is one of the piston engines manufacturer and piston engine dealer in China that has patents on the motors and generators design. There isn't any problem with IP protection laws when you buy our generator, motor, engines, diesel, gearmotors and other power supply and motor-driven items, even in strict regions, such as North America and Europe. Our company has obtained the certifications of ISO9001-2000, GS/TUV, CE, VL, EPA, QHS, SON, CAP and SRS and we have won EPA 2005 Motor Year Certification. We'll print custom logos and piston engine product documentation in your language, and provide spare parts for easily worn down components. We also can design and deliver OEM/ODM samples in one month.

The exposure, probability and severity of a wildlife strike, the aircraft and engine type, and the aircraft operating environment (See Chapter 2 and 6). Exposure and probability relate to the environment in which a particular type of aircraft operates. Since most wildlife strikes occur during takeoff and landing phases (see Chapter 7), aircraft that frequently engage in these activities are at higher risks. Operations in and out of airports where there is little or no wildlife-management activity—such as small community airports and major airports in developing nations—are also at higher risks of incurring bird and mammal strikes. Certification standards for particular engine and airframe components are important when determining the potential severity of damage. These standards vary with the type of aircraft and engine; critical forward-facing airframe components such as windshields, wing leading edges and empennages have different bird-impact design criteria.

Picture a tube or cylinder that holds a snugly fitting plug. The plug is free to move back and forth within this tube, pushed by pressure from hot gases. A rod is mounted to the moving plug; it connects to a crankshaft, causing this shaft to rotate rapidly. A propeller sits at the end of this shaft, spinning within the air. Here, in outline, is the piston engine, which powered all airplanes until the advent of jet engines.
Pistons in cylinders first saw use in steam engines. Scotland's James Watt crafted the first good ones during the 1770s. A century later, the German inventors Nicolaus Otto and Gottlieb Daimler introduced gasoline as the fuel, burned directly within the cylinders. Such motors powered the earliest automobiles. They were lighter and more mobile than steam engines, more reliable, and easier to start.