FAI Sporting Code - General Section - 2004 Edition - Pallo.net

7.3.1.4 Timing of record attempts. In the case of record attempts, clocks and other time recording
equipment shall be checked over a period of 3 hours against official time signals both immediately
before and after the attempt with any error found taken into account in the calculations. This does
not apply to times obtained from UTC derived from GNSS fixes which use accurate time as the basis
of the GNSS System, where the data is recorded on a secure system, which cannot be altered
without such alteration being detected.
(AL5)
7.3.1.5 Altitude. Methods for the measurement and checking of altitude are determined by the FAI Air
Sport Commission concerned. These may be by the use of calibrated barographs, flight recorders
(including those recording GNSS fixes as well as pressure altitude), sighting frames, observation
aircraft, or ranging radar.
(AL6)
7.3.1.6 Equipment limitations. Any requirements, limitations or prohibitions on equipment to be carried
shall be specified by the FAI Air Sport Commission concerned.
7.3.1.7 Evidence from photographic sources or from data from navigation aids. Evidence from
photographic sources or from data recorded in flight from navigational aids may be used to verify
flight evidence as specified in the Specialised Sections, including any requirements for sealing of
equipments.
7.3.1.7.1 Photography. Photographic sources can be from any imaging device including cameras which
record images on film, disc or videotape in the visual or Infra-Red (IR) spectrum (such as near-IR
intensifiers or far-IR thermal imagers). Photos concerning a flight or separate flight leg shall be on a
single uncut length of film or single cassette tape, but if a film is inadvertently cut during
processing, the resulting photos may be used for verification if it is possible to prove that they
came from the same film and were in the correct sequence. Date and pilot identification shall appear
on the film.
7.3.1.7.2 Navigational Aids. Fixes from navigational aids such as Global Navigation Satellite Systems
(GNSS) such as the US GPS and the Russian GLONASS may also be used if fix accuracies and the
sequence of fixes shown are compatible with the element of the Flight Performance to be validated,
such as to show proof of presence in an Observation Zone. Such sequences of navigational fixes
shall be recorded at the time in flight by a method approved in the relevant specialised section of
the Sporting Code, and which has control procedures to prevent cheating or corruption of data.
7.4 ACCURACY OF MEASUREMENT
7.4.1 The Specialised Sections of the Sporting Code shall specify the accuracy of measurement required
and any methods to be used.
7.4.2 The FAI reserves the right to require proof of the accuracy of measurement and calculation. It may
refuse certification if the information is insufficient.
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FAI Sporting Code General Section 2004
7-2
Ch 7 - Measurement Requirements