Experimenter is a magazine created by EAA for people who build airplanes. We will report on amateur-built aircraft as well as ultralights and other light aircraft.
Issue link: http://experimenter.epubxp.com/i/113663
F li g h t lin e RV Airspace Celebrates One Year RV Airspace, operated by RVer Glenn Brasch, EAA 151265, celebrates its one-year anniversary in March 2013. Discussions are growing daily on this newcomer RV forum. If you haven't checked it out yet, you'll find some familiar usernames there, and a little different feel than the other great RV forums offer. Visit www.RVAirspace.com. Belite Offers Showplane and Amphibious Floats Belite's WOW showplane is for sale at a special price. It is loaded with features and special "one-off" touches, which make it a different, highly aerodynamic machine—achieving a 58mph cruise on a 28-hp engine—and a joy to fly. It has a special paint scheme that has turned heads wherever it's been shown. Originally priced at just under $50,000, Belite has reconfigured it to save money and added in a special discount as well as a reliable, new four-stroke engine. Only one model is available, but you can choose one of four configurations: 1) $26,500 with new 28-hp Hirth engine 2) $22,500 with new 28-hp Hirth engine and cost reductions 3) $32,500 with 1/2 VW four-stroke engine 4) $22,000 without engine. 30 pounds per float in FAR 103.) For more information, call Belite Enterprises at 316-253-6746, visit www.BeliteAircraft.com, or e-mail info@beliteaircraft.com. Belite is also developing amphibious floats. Constructed entirely of aluminum, these floats are designed to work with retractable wheels or as straight floats. The straight version will weigh less than 28 pounds. (The FAA allows Italian Manufacturer Unveils Experimental Powerplant Another aviation engine has emerged from Italy—the Egimotors EGM4x4, introduced February 2 in Modena, Italy. The 4.5-liter EGM4x4 is a direct-drive, four-cylinder flat engine (112 millimeter x 100 millimeter bore/stroke) with four valves per cylinder. Power output ranges from 140 hp at 2,500 rpm to 280 hp at 5,000 rpm. Dry weight is 195 pounds as designed for "rough helicopter use," but it will soon be lightened so that the serial production, bolt-on, wet weight for airplane use will be less than 220 pounds. Weight will include the external oil tank, oil, and oil cooler. The EGM4x4 engine is air- and oil-cooled; the cylinders and cylinder heads are externally air-cooled while engine oil from the dry-sump crankcase is siphoned by a dedicated scavenging oil pump and fed through an oil cooler before coming to the external oil tank. From there, oil is sent to the engine pressurized by a second high-pressure oil pump. Oil pumps are engine driven and sit on both sides of the camshaft, located below the crankshaft. The EGM4x4 has four single aluminum cylinders coated internally with nickel-silicon. Nonmoving, outer, visible engine parts are aluminum while internal parts are steel. Two cylinders on each side share a single cylinder head. The four valves per cylinder are actuated via camshaft rods from the central camshaft. Two redundant engine control units (ECUs) drive two independent ignition and fuel supply systems. The engine has two fuel injectors per cylinder, each system working up to 50 percent capacity; if one malfunctions, the other takes over to supply full fuel. The EGM4x4 can be run either on 95 octane auto fuel or on 100LL avgas. While pricing has not been published, an Egimotors spokesman revealed a firewall-forward airplane install for the 140/160-hp version would likely be at $22,700. The helicopter version would be approximately $24,000. For more information, visit www.Egimotors-Engines.com. … by Marino Boric 10 Vol.2 No.3 / March 201 3