GP940E 01/97
27.02.97
19
2.3
Sealing of data ports:
no requirement, but no unauthorised data must be passed into the FR during the
time between takeoff and the start of the post-flight transfer of data by an OO. Any abuse of this may lead to a
future requirement to seal the data port.
3.
Check of Installation in the Glider.
Before flight, an Official Observer must check the place of the equip-
ment in the glider concerned and how it is fixed to the glider. Following this examination; EITHER,
3.1.
Continuous Observation.
The glider must be under
continuous observation by an OO until it takes off
on the claimed flight (so that the FR cannot be transferred to another glider without this being seen); OR,
3.2.
Sealing to the Glider.
If para 3.1 cannot be met, the FR must be sealed to the glider by the OO so that
it cannot be removed without breaking the seal. The sealing method must be acceptable to the NAC and IGC.
Paper seals must be marked with the glider registration, the date, time and OO's number and signature. A
wire/lead or wax seal with a unique sealing die (imprint pattern) may also be used. Sealing to the glider is allo-
wed to take place at any time or date in advance of the flight. This is because all GNSS fixes have a date/time
content, unlike a drum-type barograph. The use of adhesive plastic tape is not satisfactory for IGC-approved
sealing because it can be peeled off and re-fitted. Gummed paper tape is recommended, as used for sealing
drum-type barographs.
3.3.
Place of Installation in the Glider.
See para 2.1. Where sealing to the glider is required under para
3.2, the OO must seal the FR unit to glider parts which are part of the minimum standard for flight. It is accep-
ted that such parts can be removed for purposes such as servicing; such parts include the canopy frame, in-
strument panel, and
centre-section bulkhead fittings. If such a part is
transferred between gliders, any FR
seal for the previous glider must be removed. For motor gliders, see para 2.2.
4.
Security Seals, Physical and Electronic.
The FR unit is physically sealed with adhesive security tape ac-
ross the bottom of the case. An internal electronic security mechanism is also included and its security check
will no longer work is the case is opened. If the FR is found to be unsealed electronically, it must be returned to
the manufacturer or his appointed agent for investigation and resealing, with a statement of how the unit beca-
me unsealed. Whenever any unit is resealed, the manufacturer or agent must carry out positive checks on the
internal programmes and wiring, and ensure that they work normally. If any evidence is found of tampering or
unauthorised modification, a report must be made by the manufacturer or agent to the Chairman of GFAC and
to the NAC of the owner; the IGC approval of that individual unit will be withdrawn until the unit is re-set and
certified to be to the IGC-approved standard.
5
After-Flight Transfer of Flight Data from the FR and conversion to *.IGC File Format.
Only the IGC-
approved standard of software shall be used. This standard is given on page 1 under `Equipment', and `soft-
ware'.
6
Analysis of Flight Data.
Analysis of flight data may be through any analysis programme which is approved
by the relevant NAC such as those which use the *.IGC file format. The *.ZAN file which was originally downlo-
aded from the FR must be checked as unaltered by the NAC by the use of an authenticated version of the VA-
LI-ZAN.EXE file (see page 1 under "software"), and the CONV-ZAN.EXE programme then used to derive the
*.IGC file from it; this newly-created *.IGC file must either be used for flight analysis or be checked as being
identical to any earlier version of the *.IGC format which may have been used for preliminary analysis.
7
Manufacturer's Changes.
Notification of any intended change to hardware, firmware or software must be
made by the manufacturer to the Chairman of GFAC so that a decision can be made on any further testing
which may be required.
Ian Strachan
Chairman, IGC GFAC
10 Nov 1996
Annexes:
A. Notes for owners and pilots
B. Notes for Official Observers and NACs
Any Queries to:
Chairman IGC GFAC, Bentworth Hall West, Alton, Hampshire GU34 5LA, England
Tel: +44 1420 564 195; Fax: +44 1420 563 140; email: [email protected]
Annex A to IGC Approval Dated 10 Nov 1996
NOTES FOR OWNERS AND PILOTS -
PART OF IGC APPROVAL FOR ZANDER GP 940 GNSS FR
