First: I tryd to make a little yoke combined with information.
Second: I am not building myself the Europa but a Stampe-like Biplane called
Kiebitz. A friend of mine is building the Europa No. 131 and i am naturally very
interested in his projekt and try to be a relais between him and this
Newsletter.
To Larry:
>Thomas,
Your making my head hurt-- "belly up," = inverted? 3 feet above the ground,
OK, and +4.5g's (positive g's being stick back). My little feable brain
concludes that the plane is a fraction of a second from impacting the
ground(?)%-( What am I missing here?
Larry<
Take it easy, it was a ground test in a test jig.
To Graham:
>Congratulations Tom, did you also load the fuselage, engine tail etc at the
same
time? I saw the wing loaded to 4.5 but not the fuselage.
Graham<
No, the fuselage and engine was not loaded at the same time. The elevators were
loaded in aircrafts normal position on its own gear one side 100kg, other side
150kg and vice versa, thats together a quarter ton. This torque-input was made
to test the horizontal fuselage-conection and the spar of the Elevator.
The wing was loaded with 1.8 tons, and bend 34cm on one side and 33cm on the
other side. All this static loads were hold for 4 days. The test ends up without
any permanent deformation or other problems.
To Peter:
>Relax Larry
It was on a test jig. If it is OK with THOMAS I will upload a copy of the photo
to the europa FTP site.
Panic over <G><
I would apreciate that.
To Luc:
> Did you measure the deformations during your test? In Switzerland
each homebuilt has to be load-tested, so if you have some data it can be
useful to compare them with the factory tests and the other airplanes that
will be tested.
One in CH should be ready for the test next summer.
I'm the engineer in charge by the Swiss RSA (EAA) to control the
calculation folder prior to the acceptance of the experimental certification
of the Europa by the Swiss Authorities. The Swiss FOCA (LBA eq.) has enough
to do without all these homebuilts so they have delegated some tasks to the
RSA, we are now agreed to do noise measurements, all construction checks
prior to the final examination of the plane, and examination of the
calculations...
Join us at the Swiss RSA convention 9-10-11 Aug. in Neuch=E2tel
(LSGN)...
Thanks for your help.<
If you like you can have the phone number of Jens (the builder of 131) .
Some of the results are above.
Happy flying to you all.
Thomas, Kiel Germany
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