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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Radio Navigation > For a conventional DME groundspeed readout during steady level flight, with slant-range error small and the aircraft well away from overhead passage, which station geometry normally gives the best approximation to groundspeed?

192 - ATPL Question Bank in English - For a conventional DME groundspeed readout during steady level flight, with slant-range error small and the aircraft well away from overhead passage, which station geometry normally gives the best approximation to groundspeed?

Question 192 - Radio Navigation - ATPL - Airline Transport Pilot Licence

A DME station directly ahead or behind, aligned with the aircraft’s ground track.

A DME station well abeam and offset from the aircraft’s ground track.

A VOR station on the route, using its azimuth indication alone.

An NDB on the route, using the ADF bearing alone.

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