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4 3018840 4 2287000
Demonstration of the mechanical strength of Appendix 2
structures supporting airborne experiments
Edition 5.2 A2.9
Characteristics of unequal flange brackets with rounded corners
Material: A 33 (Rm = 330 MPa) Material : 5086 H 111 (Rm = 250 MPa)
a
(mm)
b
(mm)
e
(mm)
Mfmax
(N.mm)
a
(mm)
b
(mm)
e
(mm)
Mfmax
(N.mm)
45 30
4 630300
45 30
4 477500
5 775500 5 587500
4 768900 4 582500
30 5 943800 30 5 715000
50 6 1105500 50 6 837500
40
5 990000
40
5 750000
6 1161600 6 880000
5 1402500 5 1062500
60 40 6 1659900 60 40 6 1257500
7 1910700 7 1447500
5 1706100 5 1292500
6 2013000 6 1525000
65 50 7 2306700 65 50 7 1747500
8 2590500 8 1962500
70 50
6 2323200
70 50
6 1760000
7 2666400 7 2020000
Demonstration of the mechanical strength of Appendix 2
structures supporting airborne experiments
Edition 5.2 A2.10
Characteristics of equal flange brackets with rounded corners
Material: A 33 (Rm = 330 MPa) Material : 5086 H 111 (Rm = 250 MPa)
a
(mm)
e
(mm)
Nfmax
(N.mm)
a
(mm)
e
(mm)
Nfmax
(N.mm)
3.2 320100 3.2 242500
3.5 349800 3.5 265000
35 4 389400 35 4 295000
5 478500 5 362500
37.5 3.2 372900 37.5 3.2 282500
3 396000 3 300000
3,5 458700 3,5 347500
40 4 511500 40 4 387500
5 630300 5 477500
6 745800 6 565000
3 504900 3 382500
4 666600 4 505000
45 4,5 762000 45 4,5 550000
5 801900 5 607500
6 950400 6 720000
3 630300 3 477500
4 831600 4 630000
5 1006500 5 762500
50 6 1191300 50 6 902500
7 1372800 7 1040000
8 1534500 8 1162500
4 1214400 4 920000
5 1491600 5 1130000
6 1745700 6 1322500
60 7 2013000 60 7 1525000
8 2286900 8 1732500
10 2745600 10 2080000
5 1752300 5 1327500
65 6 2065800 65 6 1565000
7 2385900 7 1807500
5 2013000 5 1525000
6 2399100 6 1817500
70 7 2775300 70 7 2102500
9 3498000 9 2650000
Demonstration of the mechanical strength of Appendix 2
structures supporting airborne experiments
Edition 5.2 A2.11
Use of sections not specified in previous tables
In a case such as this, the section’s bend constant must be found in the manufacturer’s
documentation. The bend constant is defined by the term I/v (mm3), where:
I : Moment of bend inertia (mm4). This value is only linked to the
geometry of the cross-section.
v : Distance of the plane furthest from the neutral plane (mm).
The maximum allowable bend moment on the section is thus defined as follows:
Mfmax = Rm
I
v
Rm: Material tensile strength (MPa)
Edition 5.2 A3.1
Pressure Vessel Appendix 3
Certification
All pressure vessels and pressurized systems used in the A300 Zero-G shall be
certified as safe to operate before use and shall be re-certified periodically if re-used.
This certification verifies that the pressure vessel/system has been inspected by a
pressure system engineer, relief valves in the system are at appropriate locations, relief
valves are certified, all pressure gauges are calibrated, appropriate proof tests were
performed, etc.
Each pressure vessel and pressurized system shall be designed to 2 times the
Maximum Allowable Working Pressure (MAWP) and certified to 1.5 MAWP in
accordance with applicable national consensus codes. Furthermore, these certificates
must not be older than five years at the flight days.
It is the responsibility of the test developer to provide the documentation necessary to
prove the certification of the pressure vessels and pressurized systems. This
documentation will be reviewed by Novespace and other relevant experts.
The following is a recommended outline for pressure vessel certification as required in
the test equipment data package.
Pressure Vessel Certification Appendix 3
Edition 5.2 A3.2
1. System drawing or sketch, dated and initialled by designing engineer.
2. Component identification data :
a. Relief Devices - Set pressure, manufacturer, model number, and system
component number of all relief devices. Each valve should be tagged to
indicate its set pressure.
b. Components (valves, filters, regulators, check valves, etc.) - Manufacturer,
model number, pressure rating, and system component number. Regulators
should be tagged with a certification, and all pressure gauges should be
calibrated and labeled as such.
c. Flex hoses - Pressure rating, size, and system component number.
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