5.4 Control Procedures

Flights shall be controlled by GNSS flight
recorders (FR).

a. All GNSS FR’s approved by the IGC up to two months prior to the Opening Day shall be accepted. A valid calibration certificate must be provided for
each FR.

The FAI SC Section 3 requires that Flight Recorders have been calibrated within the previous 24 months.

b. Two GNSS FRs may be used. One being designated to the Organisers as the primary recorder and the other one as a back-up.

c. GNSS FRs recording intervals shall be set to 10 sec or less. Non-compliance may be penalised.

d. FRs shall be switched on for at least two minutes before take off to establish an altitude baseline. On motor gliders having an MoP capable of being
started in flight (including sustainer MoP) the engine must be started and run for a maximum of two minutes either before the launch, or as soon as
possible after release if the motor glider is launched by aerotow. This is required to provide a positive record on the GNSS trace. The FR must
remain switched on following an engine run on the ground.

e. If both recorders fail and the flight record is interrupted for a period longer than one minute, then the glider shall be considered as having outlanded unless satisfactory evidence can be provided that the glider did not, during the interruption of the FR record, violate airspace or, in the case of a motor glider, use the MoP.

f. The Organisers shall require the backup FR only in the event that the primary FR fails. The Organisers shall be informed of any change of equipment including the designation of the primary FR. Non-compliance may be penalised.

5.4.1 Penalties may be imposed by the Organisers for unauthorised interference with the GNSS equipment, data or internal program.