AMC2 ACNS.E.LAD.320 Flight dynamics and locating the aircraft
ED
Decision 2021/008/R
ACCEPTABLE MEANS OF COMPLIANCE SPECIFIC TO SOLUTIONS BASED ON AN ADFR
(a) The system should meet the conditions of AMC1 ACNS.E.LAD.320.
(b) Assuming that:
(1) when it is released, the deployable package of the ADFR has an initial ground speed (in the local horizontal plane) of 300 knots or the design diving speed, whichever is lower;
(2) there is no wind; and
(3) Vi is the highest impact velocity at which the ELT in the deployable package of the ADFR is demonstrated to successfully transmit a 406-MHz signal after an impact shock test as specified in EUROCAE ED-112A, Section 3-3.2,
the horizontal distance needed for the deployable package of the ADFR to be decelerated solely by aerodynamic forces to a ground speed equal to Vi should not exceed 70 metres.
(c) Unless the aircraft is equipped with an ELT(AF) or (AP), the ADFR should be installed to achieve a 95-% probability that at least one satellite of the international COSPAS-SARSAT programme receives the 406-MHz signal transmitted by the ELT that is integrated into the deployable package of the ADFR when the aircraft stands on its landing gears and that package is not deployed.
[Issue: CS-ACNS/3]
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