This is a 1/5 Plastic Visible Mazda Rotary Engine made by Minicraft Model Kits. It"s a skill level 2 model for ages 12 and up. The "T" type rotor featured in the Wankel was first used in 1588, as part of a water pump and, in 1782, James Watt tried, and failed, to use the same principle in a steam engine. Inventors tried to apply the principles of rotary combustion to engines as early as 1908, but none successfully until 1954 when Felix Wankel devised the first rotary-combustion engine, the first working model of which was built three years later. FEATURES: Authentic 1:5 scale model See-through motorized action Plastic parts molded in various colors Display stand included Rotating discs with sections removed to form firing chambers Smaller than conventional engines with fewer parts. Less wear, less friction, and greater reliability. Light weight of engine results in a lower horsepower requirement to achieve the same speeds. Eyelets used in kit to make good electrical contact without the use of solder. Parts to engine include an air cleaner, fan, fan belt, generator, starter, stick shift, and "transmission housing." Runs on two AA 1.5V batteries Includes wiring and vinyl tubing Very informative and helpful pictorial instructions for assembly INCLUDES: One 1:5 Mazda Rotary Engine with Display Stand REQUIRES: Assembly Nail File or Sandpaper Petroleum Jelly or Vaseline-like Lubricant Cement Two AA 1.5V Batteries Reflector Tape Transparent Tape Wire Cutter Small Phillips Screwdriver Hobby Knife Rubber Hammer or Regular Hammer Small Wrench Adult Assistance and Supervision SPECS: Scale: 1:5 COMMENTS: Not suitable for children under 36 months of age because of small parts. Painting not required A smooth and polished surface will ensure proper functioning of model engine. Do not use machine oil Be certain all moving parts are well lubricated For best results, test the electrical system after each stage of assembly. san 8/2/00 ir/jl