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aerokurier 7/1999
Active against noise The question how we cope with noise is one of the largest challenges for society today. This is especially true for General Aviation and the airsport. Noise is always what the others make. That is why using the actually measured noise level, which should be the basis for any impartial discussion, is not feasible. Noise rather is a psychological problem than a scientific one. Just for that reason, the (aircraft) noise problem should not be solely based on the technical side, especially since the aircraft flying today are, in average, significantly less noisy than years ago. The reduction of noise emissions of aircraft has in many cases reached the limit of technical feasibility. Only that the people who live near airfields don’t know about it. An active and constant public relation work is mandatory. Heliboys In Australia, huge cattle herds are driven by helicopters. The so called stock mustering has become a daily routine for the experienced cowboys in the cockpits. Brian Maginnity has visited the Victoria River Dawns (VRD) station in the North Territory for us. 13 Robinson R22 are operated in an area of 4400 square kilometers. Euro-Enaer EE-10 Eaglet The roots of the Eaglet go back twelve years to Enaer in Santiago de Chile. The low-wing two-seater never reached certification. Today, a modified and updated version is supposed to achieve this goal. The aircraft are assembled in Den Helder, located in the Northern part of the Netherlands, at the Euro-Enaer plant. The parts are delivered from Chile. The company plans to only manufacture the rudders themselves. Flying the prototype revealed the need for some more fine tuning. The aircraft is still too heavy and, in spite of its 145 hp engine, left the impression of being underpowered during take-off. Also, the climb rate of only 600 ft/min has room for improvement. The flight characteristics, on the other hand, left a good impression. In cruise flight, the aircraft reached 120 to 125 kts at 75 percent power. The visibility out of the cockpit is excellent. The EE-10 Eaglet is currently listed for 160000 Dollar. IGM’99: Good used aircraft are rare to find The move from Baden-Baden to Speyer is giving the IGM a positive push. However, it is very difficult to find good used aircraft on the market. Approximately 125 aircraft were on sale at the 35th International Used Aircraft Show from 13 to 16 May. Approximately 4000 potential buyers came to Speyer. Although the show is still far away from visitor numbers of earlier shows, the dealers at the show were optimistic, saying that while there were not very many visitors, they were very interested. Charter tips: US-registered aircraft Not a few people are fulfilling their dream of flying by acquiring their licenses in the USA. Coming back, the pilots face the problem of changing their US licence into a German pilot certification. If one does not change his licence over, the pilot can fly only US-registered aircraft in Germany. There are several of these aircraft flying in Germany and many are being rented out by their owners. Not all of these charters are fully legal though. In this article aerokurier author Patrick Neelmeier gives tips on what to look for when chartering a US-registered aircraft in Germany. Rotax engine for Cessna 150 The Rotax engine conversion for the Cessna 150 has been certified by the German aviation authorities LBA since October of last year. This could be accomplished mainly to the long-time effort of Dr. Guido Sperl, head of an engineering office which is specialized in structural, dynamics and fluid mechanics development work. The 56000-Marks modification is exclusively done by Fläming Air located at the airfield Oehna/Zellendorf (phone: +49-33742/60330). A modification kit for the 100-hp Rotax 912S3 is in development also, the certification is expected for the end of this year. Windrose Air in Berlin-Tempelhof Windrose Air, which is based at the Berlin-Tempelhof airport, is one of the companies that accomplished pioneering work for the executive charter business after the fall of the wall ten years ago. Half way to America With some flying experience, a good planning and preparation and an ample equipment on board, a VFR flight to Iceland is not an adventure. Two pilots from Berlin have flown the route via Scotland and the Faröer islands with a Cessna 172. Sun ’n Fun 1999: Lakeland from inside Gray clouds here, blue sky there. And: An airline ticket to get there is not more expensive than flying to Majorca. However, this is certainly not the only reason for coming to Sun’n Fun in Florida every year. aerokurier author Thomas Schüttoff was not just a guest a the show, he worked under the merciless sun in Lakeland as one of the EAA’s many volunteers who make this mega fly-in possible. Risk factor human being The technology becomes better and better, meaning also safer. The human being stays what he is – a creature that makes mistakes. While this statement is correct, it is very much exaggerated. Today, there are several ways and options available to allow pilots to do their job in the cockpit better and safer. The existing techniques and strategies were developed by airlines and the research institutes of air forces. There, the need is most imminent. But also General Aviation pilots can benefit from this know-how. Airline pilot Karl-Heinz Apel describes what to look for. Deadly mixture: water in the fuel There can be different ways how water can find its way into the tanks of aircraft: Not properly sealed tank caps, condensation in tanks that are not completely filled, and water, that is taken by refueling from ground tanks at the airfield gas station, are the main causes. Piston-engine singles and twins are equipped with more or less drain valves to get the water out of the aircraft’s fuel system. Not a few pilots have problems with that system. aerokurier author Thomas Dietrich explains when and how to correctly drain the fuel system. aerokurier Action: Landing without fees Our July Action takes you to free landings in the Lausitz, in Brandenburg and in Franken. Welzow, located between Berlin and Dresden, is this month’s most Easterly destination. Straußberg, our second destination and worth a touchdown, is located a little farther north in the vicinity of Berlin. The third landing coupon in our July issue takes you to the airfield Hettstadt by Würzburg. Accident analysis: Failed go-around under IFR The flight from Essen/Mülheim to Sylt was uneventful up until the approach into Westerland. The area was covered by fog, the ceiling did not allow an IFR approach. Still, the IFR licensed pilot tried an instrument approach with his PA-46 to the only ILS-equipped runway in Westerland. The single engine aircraft crashed next to the runway, killing the pilot and the copilot. Kappa KP 2U-Sova: Solid sport aircraft The first German-registered Kappa KP 2U-Sova had to prove its capabilities in the aerokurier testflight. For an ultralight aircraft, the all-metal low-wing is a refined construction. The aircraft showed very good handling characteristics. However, there is room for improvement in several details. We are looking at the goods and bads of the new aircraft. Tow-flight with the TL-232 Condor plus According to Martin Wezel, the first glider tow-flights with the TL-232 Condor plus for the certification were successful. Towing a LS-4, the tow formation reportedly achieved a best climb rate of 3,6 m/s at speeds of 110 to 120 km/h. Rescue system in flight tests Glasfaser-Flugzeug-Service Hansjörg Streifeneder has accomplished the first successful test flights towards the certification of a rescue system for glider aircraft. Hansjörg Streifeneder himself flew the first four tests with his modified Discus up to a speed of 160 km/h. He was positively surprised by the opening shock of the 130 square meter chute: "The accelerations are less than expected." New Standard Class glider: Genesis 2 To reach the maximum with the minimum, probably describes best the concept behind Genesis 2. Why generating harmful drag with a long tail and a large empenage if both can be avoided by using a wing profile with a small momentum and by achieving good flying characteristics? Designer Jim Marske, who created the kit-gliders Monarch and Pioneer, together with Aerodynamics specialist John Roncz, who engineered the wings for Burt Rutan’s world-record Voyager aircraft, designed Genesis with just that in mind. Meanwhile ten aircraft have left the production assembly in Lithuania. Top of Page |
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Last updated June 29, 1999