I vaguely remember seeing somewhere that in a DME/GPS equipped aircraft it is legal to manoeuvre within 5 miles of the NDB to establish within the 30 degree arc for direct entry into the approach. If this is correct, and not a figment of my imagination can anyone point me to the reference?
ENR 1.5 2.4.1 (3), may be what you are looking for.
2.4
Procedure Entry
2.4.1 An aircraft which is not required to hold or to lose height in a holding
pattern may commence the approach without entering the holding
pattern if:
a. in controlled airspace, ATC has cleared the aircraft to do so;
b. in any airspace, for procedures using radio navaids:
(1) the reversal procedure entry requirements of para
2.7
are satisfied; or
(2) the DME arc entry requirements of para
2.8 are satisfied;
or
(3) the en route track to the procedure’s commencement fix
or facility is within 30
° either side of the first track of the
procedure; or