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/401344
32 Vol.3 No.10 / October 2014 UNDER THE COWL DeltaHawk V-4 two-stroke engines are both turbo and supercharged, providing exceptional higher-altitude perfor- mance. Redundant air, fuel, and cooling systems provide peace of mind, while single-lever control lessens pilot workload. More than 40 aircraft worldwide are being designed around the engine. Production of noncertifi ed engines will start in the fourth quarter this year. Visit www.DeltaHawkEngines.com for more information. EPS Engineered Propulsion Systems Inc. (EPS) from New Rich- mond, Wisconsin, displayed the fi rst iteration of its V-8 diesel engine, which can achieve between 320 and 450 hp using either diesel, kerosene, or Jet-A fuels. Last year EPS showcased the Vision 350 engine in the Inno- vations Pavilion; it's a prototype of a lightweight diesel aircraft powerplant in the 350-hp range that is small enough to fi t into the cowls of current production single-engine aircraft. This year the proof-of-concept version of this same engine is cur- rently in fl ight test in Mojave, California, under the guidance of test pilot Dick Rutan, who spoke about his experiences fl ying the engine in a forum during AirVenture. Rutan said he has validated calibration in the Cirrus SR22 test bed up to 10,000 feet, and he also tested the engine's liquid cooling system in a rapid descent from 10,000 to 3,000 feet and found the combustion stable and the cooling ther- mostat functioning well. With about 15 hours fl ying time, he stressed that there remains a signifi cant amount of fl ying to be done to complete the test program for the engine and ensure that everything about its performance has been confi rmed be- fore locking in the design for the preproduction engine, which is the next step before seeking FAA certifi cation. EPS said it expects that certifi cation will be granted by the end of 2016. Design of the preproduction engine is well underway, said EPS Vice President Steven Weinzierl. He noted that the core of the engine is already designed and preproduction castings have recently emerged from the foundry. For more informa- tion, visit www.EPS.aero . ADEPT AIRMOTIVE 2014 Adept Airmotive from Durban, South Africa, displayed its 320T engine. Visitors had the opportunity to explore the current state of development of this compact V-6 geared, gasoline avia- tion engine developed to run on mogas; 100LL could be used, but this is not being recommended, especially for longer use. Adept Airmotive has designed and is developing the follow- ing range of GA engines for light aircraft: • 320T—320-hp turbocharged engine • 280N—260- to 280-hp normally aspirated engine • 300R—Plus-300-hp normally aspirated competition racing engine. Several Adept engines fl y on board of experimental test air- craft, and on March 4, 2014, Adept's fi rst customer engine was delivered to VliegMasjien in Johannesburg, South Africa. Photography by Marino Boric The EPS V-8 diesel engine.