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Maximal loads for each fixation point in the different directions are:
In x 2250 daN, in y 900 daN, in +z 1330 daN (direction to the ceiling),
in -z 1750 daN (direction to the ground).
5.3 Equipment Attachment
The base of any experimental equipment must be drilled with 12 mm holes so that it
can be fastened to the attachment interfaces by means of H-head M10 screws provided
by Novespace. The screw holes should be in positions easily accessible so that the
screws may be fastened by Sogerma personal having the skills to tighten the screws.
The distance between two holes on the same rail (X axis) must be a multiple of one
inch (25.4 mm).
Test Equipment Fabrication Requirements Chapter 5
Edition 5.2 5.4
Two holes in line on two different rails (Y axis) must be 503 mm or 1006 mm apart
(when checking the distance between holes, be sure to check also the diagonals). The
actual distance will be confirmed by Novespace.
- - - - - - -
- - - - - - - -
D1
D2
Experiment Rack
fixation holes =12 mm
attachment rails
Y
X
Fig. 6 - Equipment Attachment
5.4 Free-Float Packages
Perturbations of the airplane can cause small "g" forces during a zero-g maneuver. If a
precise zero-g is required, the test package can be free-floated inside the cabin,
preventing contact with the walls, ceiling, or floor of the aircraft. To provide the
maximum free-float time, the package to be floated should be as compact as possible. It
should not weigh more than 25 kg. If a tether is used between the floating package and
tied-down support equipment, it should be at least 2 meter long to allow the floating
package to freely drift. For large (higher than 0,5 m) and heavy free-floating equipment
, handles should be mounted in the middle of the experiment using 2 cm tubing.
D1 = n x 25.4 mm
D2 = 503 or 1006 mm (to be
decided with Novespace)
Test Equipment Fabrication Requirements Chapter 5
Edition 5.2 5.5
Free-float packages normally require one extra Flight Test Center safety personnel
which is counted on the experiment’s quota and for whom additional costs will occur.
5.5 Pressure Vessel
All pressure vessels and pressurized systems shall be certified as safe to operate before
use and shall be re-certified periodically if re-used.
The certification or re-certification for all pressurized systems (including bottles) must
not be older than 5 years. The utilization pressure must be less than 2/3 of the pressure
certified.
5.6 Electrical
A 10 amps (max) rapid fuse, on the experiment general electrical input, must protect
aircraft power supply against electrical short on experiments. Each piece of test
equipment must be adequately grounded. Normal aircraft vibration, high humidity,
handling, and loads of more than 1-g should be considered in connector and wiring
selection. See also 3.3 for voltages, connections and requirements.
No equipment should be left «power on» in the aircraft or in the experiment laboratory
outside working hours. All batteries should be disconnected. If necessary and on
request, manpower can be made available to monitor a specific equipment which
absolutely needs to stay «power on». In this case additional costs will occur.
5.7 Hazardous Materials
If possible, avoid hazardous liquids and gases, including high pressure, toxic, corrosive,
explosive, and flammable materials. If such materials are required for a test, proper
Test Equipment Fabrication Requirements Chapter 5
Edition 5.2 5.6
containment must be provided. Early contact with Novespace for discussions on proper
use and containment of hazardous materials may prevent delays in getting approval for
the use of such materials. If such materials are necessary, provisions for dumping and
purging in flight may be required. A current Material Safety Data Sheet must be
supplied for each hazardous material.
5.8 Emergency Shut-Down
Investigators have to equip their experiment with an emergency button to quickly cut
off all experimental activities with only one action. The experiment shall be designed in
such a way that the equipment can be left unattended after shut off without any risk.
5.9 Miscellaneous Guidelines
1. Avoid sharp edges and corners on all test equipment. All exposed edges
and corners, sharp or not, must be padded.
2. Do not use liquid electrolyte batteries of any type (battery circuits may
require analysis by battery experts to avoid shock, shorts, or overheating).
Use of Lithium batteries will be reviewed on a case-by-case basis by the
test directors and Novespace.
3. Avoid flammable materials in test article construction.
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