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the flight, and a security procedure and rescue exposé will be presented.
Novespace will verify, if each experimenter has passed the necessary tests
(medical and hypobaric chamber test) and has been present at the security
briefing.
4.6 Biomedical experiments with human subject
All investigations involving test on human subjects must include a specific protocol in
French, complying with Huriet law (protecting subjects of biomedical experiments).
This protocol shall be submitted to CCPPRBB (biomedical research "ethic"
commission, composed of eighteen members including medical doctors, psychiatrists,
social workers, etc..), which will review each protocol (they charge a fee for it). The
"promotor" of experiment (usually the PI) should provide a insurance certificate,
complying with French law (exact wording and minimum guarantee can be asked to
Novespace), covering his liability in case of injury linked to the experiment. Special
procedures apply to the experiment subjects (forms to be signed, listing in a national
subjects file, etc...). Novespace can assist the PI's in complying with these requirements
if necessary, PI's must contact Novespace as early as possible.
Edition 5.2 5.1
Test Equipment Chapter 5
Fabrication Requirements
Before manufacturing an experiment, designers should contact Novespace to get first approval on
the design. Thereby experimenters can implement necessary changes, if required, already before
start of construction.
5.1 Structural Requirements
All equipment must be designed and manufactured to withstand the following loads
during take off and landing.
X axis 9 g forward
1.5 g backward
Y axis 3 g left or right
Z axis 4.2 g upward
7.3 g downward
The X, Y and Z directions are referenced to the main aircraft reference system.
Fig 5 - Aircraft Reference Axes
Test Equipment Fabrication Requirements Chapter 5
Edition 5.2 5.2
Structural calculations for the take off and landing configuration should be based on
the yield strength of the hardware. The in-flight test configuration should be designed
for a possible 2.5-g force at maneuver entry and exit. Free-float test articles should be
designed for a possible 2.5-g force from any direction due to possible recovery on an
end or side of the airplane after a maneuver.
Each structural analysis must at least include :
1. Structural drawing or diagram
2. Stress calculations results (if in table form, at least one sample
calculation must be given)
3. Component weights and positions
4. Material properties
Structural calculations must be delivered with the description of the experiments.
The equipment must also be designed to withstand vibrations and compression/decompression
cycles corresponding to normal operation of the cabin pressure system, as
well as a sudden decompression resulting from a pressure system failure. In case of
doubt, it is recommended that the equipment be tested in an altitude chamber.
The simple model calculation in Appendix 2 can be used to demonstrate the strength of
the structures. In case the safety coefficients resulting from this simple calculation do
not exceed 1, the experiment is not accepted unless the strength of the structures are
demonstrated with a complete structural calculation. If this calculation still leads to a
safety coefficient of less than 1, the structure has to be strengthened.
5.2 Aircraft Rail Loading
The position of the experiments in the airplane is determined by Novespace and agreed
by the "Centre d'Essais en Vol". Aircraft rails, in other aircraft used to fasten seats to
aircraft floor, are used in A300 ZERO-G to fasten experiments to the floor by means of
Test Equipment Fabrication Requirements Chapter 5
Edition 5.2 5.3
specially designed interfaces. As the complete specifications may not be described here,
a basic rule is: The load on a rail should not be higher than 100 kg per linear meter. As
an example, if an experiment with four attachment points is heavier than 200 kg, two
attachment points on the same rail are to be located more than one meter one from the
other.
It is recommended to consult Novespace in advance if an experiment is to be build-up.
In most cases the experiments comply with rail loading specification. But, if one or
several of the items below are fulfilled it is mandatory to contact Novespace in advance:
· experiment weighs more than 200 kg
· the center of gravity of experiment is higher than 670 mm
· the distance between two fastening points on one rail is less than 508 mm
(20 inches )
· the experiment is longer than three meters.
　
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