aerokurier 8/2000
Editiorial The example of North
Rhine-Westphalia / Feature Runway
on the River Spree / Aircraft
Report Katana with Mid-West Wankel AE110 / Magazine Successful
maiden flight of Akaflieg Munich's Mü 30, New MCR 4S four-seater derivative, Helicopter
for the 21st century / Travel Flying
in southern Africa / Flying Taylorcraft
BC-12-D / Practice Landing
after-hours, Meteorology: interpretation of soundings, Accident analysis:
"life-saving" equipment proved a time bomb /
Ultralight Aircraft report: the new
Dynamic, New smart ultralight engine soon to be airborne, German ultralight championships / Gliding German
Open Class Championships, Way ahead of the pack in the LS8/18, Club Class SPECIAL,
High-tech launch machine, Alarming decline of gliding (part 3) / Special Edition: DAeC Aerosports
successes: international comparisons, DAeC chronicle: strength from unity, The sporting
specialities in the Deutscher Aero Club, Start of the new era of gliding, Interview: more
lobbying work and more effective clubs needed
EDITORIAL
The example of North Rhine-Westphalia
It is seldom the case that state initiatives in the area of General Aviation have
deserved any praise at any rate from the point of view of GA. In fact one might
even wonder whether there had ever been such a case.
But now the Land of North Rhine-Westphalia (NRW) has launched an
initiative that is truly admirable. The ministry of finance and transport in Düsseldorf
is providing around DM 1.7 million for the technical upgrade of "less common"
aircraft powered by piston engines. The Land will bear the costs of certification
and noise measurement, and aircraft operators based in NRW will receive direct financial
support. With the manufacturer discounts on sound absorbers (Gomolzig, Heggemann, Liese)
and propellers (Hoffmann, MT-Propeller) which have been agreed within the framework of
this project, the subsidy could be as high as 50% of the costs!
The Land authorities are not even insisting that the funds are
used exclusively in North Rhine-Westphalia. Thus, three operators in Bavaria will also be
beneficiaries. The aid will help to push forward upgrades which otherwise would probably
never take place.
Top of Page
FEATURE
Runway on the River Spree
One of the attractions awaiting visitors to Germany's capital city is distinctly
unusual: it is now possible to take off from the River Spree for sightseeing flights over
the city with the "Duck zero one". From the water? That's right. "Duck zero
one" is a Cessna 206 on floats and the only hydroplane in Berlin to be operated by
Air Service Berlin for tourist flights. The popular aircraft is moored at Treptower Park,
and it is not just the pilots who enjoy this new flying experience.
Top of Page
AIRCRAFT REPORT
Katana with Mid-West Wankel AE110
The Mid-West company from Egelsbach has installed a twin-rotor Wankel on a Katana DA20.
Equipped with suction pipe injection, the compact unit has a power output of 105hp. The
basic engine is already certified under JAR-E, but now the injection system needs to be
JAR-certified as well. This could happen in 2001.
The Mid-West Wankel offers a lot of redundancy, as is customary
on aircraft engines. It has two ignition circuits, a redundantly designed Flytronic
control unit, two manifold pressure, rotational speed and temperature sensors and two
electric fuel pumps as well.
The engine is easy to control. It manages without choke,
carburettor heating or mixture control lever. Apart from adjusting the throttle lever, all
the pilot has to do is operate the electrical propeller pitch control. As the engine
rotates at up to 7,500 rpm, a correspondingly sharply reducing gearbox is installed. You
will find out more about the aircraft performance and the special features of the Mid-West
Wankel in the August issue of aerokurier.
Top of Page
MAGAZINE
Successful maiden flight of Akaflieg Munich's Mü 30
The Mü 30 Schlacro received its premiere in Königsdorf in the middle of June when
Akaflieg (academic flying group) Munich presented its ambitious powered aircraft project
in flight for the first time. The 300hp bolide is designed for use as an aerobatic
aircraft with the additional capability of towing gliders.
To mark the occasion of its maiden flight, the Akaflieg put on an air
display. They were lucky with the weather as well. The Mü 30 was flown by Akaflieg
veteran Helmut Fendt, who today works at the German Civil Aviation Authority. As a student
he had been closely involved in the launch of the aircraft at the beginning of the 1980s.
The design of the combined glider tug and aerobatic aircraft was the subject of his
dissertation.
New MCR 4S four-seater derivative
On 14 June Christophe Robin's new four-seater low-wing MCR 4S, a derivative of the MCR
01 two-seater, had its maiden flight in Dijon-Darois. By the middle of July the prototype
had already clocked up 50 hours of flight trials. The common ground between the MCR 01 and
the MCR 4S comes to an astonishing 75%.
The empty weight of the prototype low-wing monoplane is only 327kg. The
maximum take-off weight is fixed at 750 kg. If one subtracts the standard fuel quantity of
120 litres from the MTOW, the useful load is 338kg. This moves the MCR 4S into the camp of
the real four-seaters. The engine options include Rotax and JPX, with 100 to 120hp. It is
estimated that at 75% capacity the aircraft should do 280 km/h at FL80. At full throttle
it should even achieve up to 320km/h at 11,500ft.
DynAéro, the company which manufactures the pioneering new Robin aircraft,
has already received some orders for the MCR 4S. First delivery of the kits is expected
shortly.
Helicopter for the 21st century
At the 22nd Helicopter Forum in Bückeburg experts discussed the future prospects of
the rotorcraft under the theme "The future does not stand still". According to a
study by the University of Maryland in collaboration with NASA (presented by George
Price), it is only in the last five years that serious improvements for the efficient and
economic use of helicopters have begun to make themselves felt.
Top of Page
TRAVEL
Flying in southern Africa
Stellenbosch in the Cape Province of South Africa was the departure point and
destination for Gerhard Obernosterer and three friends who together flew through southern
Africa in a Piper PA-28. They flew over the Skeleton Coast in Namibia, the Etosha Pan, the
Okavango, the Victoria Falls and the Cape of Good Hope. As most of the airfields in this
part of the world are on high plateaux and their density altitude is not infrequently
7,000 to 8,000ft, the pilots had to always calculate their take-off weight extremely
accurately.
Top of Page
FLYING
Taylorcraft BC-12-D
Taylorcrafts have always stood in the shadow of the highly successful Piper Cubs. David
Deiss owns a Taylorcraft and has made the leap from model builder to private pilot in an
unconventional way. He blames his experience as a passenger on a 1946-built BC-12-D. The
consequences were predictable: the single-engined veteran aircraft impressed Deiss so much
that he then bought the plane off his friend along with the necessary training, as Deiss
did not have a licence.
Top of Page
PRACTICE
Landing after-hours
What happens if a pilot lands on an airfield after the official opening times? We
confronted the regional administration of Düsseldorf with a fictitious flight and asked
them to treat the flight as if it were genuine. We were eager to know what the
"judgement" of the authority would be on this matter. They accepted that landing
after-hours might be necessary on grounds of safety, but we felt that the DM1,000 fine on
the grounds of gross negligence was a bit steep and hard to understand.
Meteorology: interpretation of soundings
Measurement of changes in temperature, or soundings, can tell one a lot more about the
stratification of the atmosphere and the resulting weather than one might think.
The interpretation of soundings is still as important as ever from the
point of view of aeronautical meteorology. So it is unfortunate that tailored products
such as Top-Therm or the convection maps which are provided via pc_met are only available
for Germany and the Alps. How do I assess thermal conditions and do my flight preparation
if I am abroad? Convection analysis based on soundings is actually more accurate than
Top-Therm or convection maps. A guide to sounding analysis.
Accident analysis: "life-saving" equipment proved a time bomb
The automatic release of the emergency parachute in the cockpit of a Pilatus Porter
resulted in the death of two pilots. While the pilot was wearing a compact emergency
parachute, the co-pilot had a training parachute on which was fitted with an activated
emergency reserve. As the Porter descended through 300m, losing altitude at a rate of over
13m/s, after dropping off some parachutists, the reserve suddenly deployed. The co-pilot
was pulled out of the rear door of the aircraft by the energy of the parachute opening.
The parachute got caught in the empennage and tore off parts of it, following which the
Porter could no longer be controlled and crashed.
Top of Page
ULTRALIGHT
Aircraft report: the new Dynamic
A new high-performance ultralight aircraft has been announced. The new WT9 Dynamic
could put the competition into the shade. The WT9 Dynamic ultralight aircraft which Rudolf
Schäfer, head of Ikarusflug, is launching on the German market is clearly aimed at taking
the lead in the performance leagues for this class.
We went to look at the prototype of the phenomenal low-wing aircraft at the
manufacturer's in Prievidza, Slovakia, a good four hour journey by car to the north-east
of Vienna. As one can tell from its lines, the Dynamic is heavily influenced by the Pulsar
and Lancair kitplanes, a few kits for which were built by a partner company of Aerospool
in Bratislava. Nevertheless, the new low-wing monoplane has a completely new construction.
New smart ultralight engine soon to be airborne
After more than a year of trials, the 55hp three-cylinder engine from the
"smart" city car is finally poised for its market launch as a powerplant for
ultralights. B & F is the first manufacturer to offer the modern turbo-engine for the
FK 9 MK II. Light, quiet and environmentally friendly with advanced technology.
The objectives for the new ultralight engine were clear from the
beginning. That the smart Suprex M 160 is now poised for market launch is the outcome of a
multi-partner collaboration involving the EFK Flugschule, UL-Technik Otto Funk,
DaimlerChrysler/Micro Compact Car Smart (MCC) and the UL manufacturer B & F.
The compact, liquid-cooled three-cylinder four-stroke 599cc engine
produces 55hp at 5,250rpm. Modifications in the control software for the series engines
mean that the initial output is raised to 60hp, then after 50 seconds the electronics
adjusts it downwards back to 55hp continuous output. This is not exactly generous for the
latest generation of ultralights, but it makes the smart turbo-engine an attractive
prospect, for example, as a replacement for many older models.
German ultralight championships
The 15th German Ultralight Championships, held between 22 and 24 June in Kulmbach,
produced three exciting competition days. The suspense was kept up right through to the
finish. Twelve three axis teams, 14 trikes and 7 powered paragliders competed in their
classes. After three navigation flights and two precision landing competitions the
competition experts took up their place on the platform once again. Heinz Korella
(partnered by Walter Wolfram) defended the title he had won the previous year in the
two-seater three axis class, while Jan took the title in the one-seater class.
Top of Page
GLIDING
German Open Class Championships
Wolf-Dietrich Herold, who took part in the German Championships in Mengen from 28 May
to 11 June in his ASW 22 "1E" and, despite a wing span handicap (22m), obtained
the best score on one of the days, reports from the Open Class. (Results Open Class )
Way ahead of the pack in the LS8/18
In the 18m class competition at the German Championships, Mengen, Claus Triebel caused
quite a sensation with his standard class LS8 aircraft which had been stretched into an18m
wingspan: not only did he manage to keep up with the fastest flapped aircraft, but he won
convincingly as well. He finished the competition a good 100 points ahead of Bernd
Gauger's LS6-18w, of which the Rolladen Schneider RS LS8/18 was a derivative. In third
place came Martin Staiger, flying a pure glider (DG-800S). (Results 18 m Class)
Club Class SPECIAL
The Club Class SPECIAL event in Weissenburg, which had a very good entry, was
accompanied by very difficult weather conditions, but the numerous competitors rated it a
great success.
The Club Class SPECIAL is a competition exclusively for club class aircraft.
It is aimed at attracting all sorts, from the very best pilots in Germany through
committed competition pilots to absolute beginners, to a central flying venue. The event
was attended by three pilots from the current "A" squad: European champion Frank
Hahn (ASW 15), Bernd Nübling (ASW 19) and Axel Reich (Standard Libelle). Other
competitors included Joachim Kuhlmann, holder of the Barron-Hilton Cup, and numerous
junior pilots, above all from Baden-Württemberg. Altogether an impressive 43 pilots took
part.
High-tech launch machine
It had to be reliable and at the same time enable automatically controlled launches.
These were the requirements which the Aukrug Flying Club drew up for the new launch winch
which the members planned to build themselves while keeping the costs down.
They have brought off a masterpiece. The new launch winch has been in use
since the beginning of the 2000 season. The launch device places next no requirements on
the winch driver, who only has to select the glider type and the head wind component.
Everything else is performed "digitally", with the throttle control simply
pushed forwards after the "rope taut" command. The winch conveys the glider up
into the sky with constant cable pull, automatically controlled.
The Aukrugers have implemented their ideal winch with a combination of
diesel and hydraulic power. A 320hp lorry diesel engine generates the necessary power in
the hybrid drive in the optimal operating range (1,800rpm). The force is transmitted to
the cable drums by hydraulics a directly flanged large pump and hydraulic motor.
Use of hydraulics has a number of advantages. In this way the hydrostatic drive creates a
torque that is independent of the rotational speed. The rotational speed of the cable
drums is infinitely variable, and this is controlled via corresponding electronics.
Alarming decline of gliding (part 3)
What are the reasons for the decline in the number of active glider pilots, a
phenomenon which is affecting gliding all around the world? How can the trend be arrested?
Fred Weinholtz presents the views of John Roake, New Zealand, (aerokurier 6/2000) in
relation to gliding as it is organised in Europe.
Top of Page
SPECIAL
EDITION:
DAeC 50th Anniversary
Aerosports successes: international comparisons
Germany is one of the biggest and most successful aerosports nations of the world.
Internationally, the seven specialist aerosports groups represented in the Deutscher Aero
Club (DAeC) are always among the front runners both in the European and world
championships.
After 50 years it is still difficult for the DAeC to sum up the
many sporting successes, as the list of the best has meanwhile grown so big. An overview.
DAeC chronicle: strength from unity
It was on 4 August 1950 that the umbrella organisation of aerosportsmen in Germany, the
Deutscher Aero Club (DAeC), was founded in Gersfeld/Rhön.
It was no simple undertaking to launch an aerosports association,
as at that time aerosports were subject to the stringent conditions imposed by the Allied
occupying powers. Unlike other types of sport, it had to establish and maintain its
sporting significance, its social weight and its civilian interests against the resistance
of the occupying powers. A retrospective view.
The sporting specialities in the Deutscher Aero Club
What does flying mean? In the Deutscher Aero Club it is practised in a wide variety of
forms, with seven different types of aerosport united under the one umbrella organisation.
We introduce the seven aerosports specialities.
Start of the new era of gliding
Two months after gliding was allowed once again, the "Rhön 1951" became the
first big flying festival in the history of the Deutscher Aero Club. A newspaper report
from those days describes the mood and provides an overview of the licensing system and
the gliders that were available at that time.
Interview: more lobbying work and more effective clubs needed
The Deutscher Aero Club looks towards the future without forgetting the past. DAeC
President Wolfgang Weinreich spoke to aerokurier about problems and prospects for
aerosports.
Top of Page |