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This project was to compute and to substantiate the whole
fuselageof this high performance aerobatics aircraft
(±9gs), including the wing and elevator attachment points
This task has been carried out using a Finite Element Model.
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This project was to study, design and put into production a
test chamber for testing gaz probes for quality control
and certification of sensors.
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In this case the solution to decrease drag dramatically
and thus to increase cruise speed by two knots was to design
and develope nicely shaped flap track fairings.
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Here, the task was to analyze the complete composite structure of this
forward galley installed on a VIP airliner.
Again Finite Element Analysis was involved
in the substantiation.
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In this picture you see a composite landing gear of a
light aircraft which has also been analysed by us.
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In this picture, you can see the self produced mock-up and
master mold of a very light high performance aircraft
for a two persons accomodation called tinyPHOON.
The task is to design it from scratch, from the aerodynamical
view point to the detail design with stress analysis.
It is powered by a turboshaft engine.
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This project was to compute and to substantiate the whole
fuselage and the main spar of this high performance aerobatics 2 seats aircraft
(±10gs) prototype called Votec 322. This task has been carried out using a
Finite Element Model.
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The displayed aft fuselage cone made out of composite materials (sandwich), with foam,
glass and carbon fibers, has been modeled and analyzed using a finite element program.
This is also one of the services that BERGER ENGINEERING can provide to customers.
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The small article, issued in the well Known "REVUE TECHNIQUE SUISSE" (November 2002 issue)
is saying that we are getting ready to offer a new service with a brand new so called
"Decompression Program" for VIP aircrafts. More about it later or on request.
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We successfully participated at the 2nd international General Aviation Fair
Avia-expo which has taken place in Lyon-Bron (France)
from the 18th to the 20th of June. Our place was small but of great interest, with the unique 100 hp
turboprop engine... This was the first time that we were displaying our activities and it was very
instructive to meet all those persons and sport pilots. We learned as well that such a display is
very time consuming and not so easy to prepare. Every little aspect has to be studied, including
international custom paperwork... Otherwise, you just can forget about displaying your activities,
and return home!
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In 2005, we also undertook the assembly of an all-aluminium two seater sport airplane, within our
development program. It's name is the "Waiex" by
Sonex aircraft LLC. This is a simple but yet very efficient design by John Monnett
and Pete Buck. The aircraft is complete since the begining of 2007, as shown on the picture,
several engine runs have been performed.
We had to wait for as long as 587 days (since June 6th 2006) untill the EAS certification group
on behalf of FOCA have finally acknowledged this type for Switzerland. This was not only a very
long time to wait for but a tremendous effort on phoning, e-mail and letters writing on a daily basis,
in order to make the thing to happen. This phase of the project was even longer than the actual build process!
The very last check from FOCA has been performed on March 2nd of 2008.
We would like to thank some of the EAS persons who were actively helping on the certification process
--unlike some other EAS Head of Certification--, as for example MM. Jacques Michel (EAS adviser) Werner Maag
(EAS President), Hans Kandlbauer (Head of EAS Engineering), Bernhard Hinz, Hans Leder, Bruno Oberlin, etc...
Eventually, on the 22nd of July 2008, HB-YMY took of to the sky with Cdr Denis Rossier at the controls. This was a
real joy to see her flying after so much time waiting on the ground for the paperwork to be eventually
acknowledged. All engine data were within the green range, as predicted, flight behaviour was fine, responsive,
and not underpowered...
Thanks to all of you who participated solving some problems during the build process and/or later on !
Special thanks also to Denis Rossier and Marc Gander who helped with first flight and ferry flight.
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