Bottom line. On occasion, there is an issue where the aircraft is not maintaining the desired airspeed despite the pilots expecting it to do so. On rare occasion, this will happen during the briefing. On even rarer occasion, the pilot who is receiving the briefing while flying the aircraft will not be properly monitoring the airspeed.
Therefore, I suggest that the pilot doing the briefing make occasional, quick glances at the instruments while giving the briefing. Every 30 seconds or so might work out well as a good balance beteeen briefing and double checking.
Admittedly, one may be less vigilant when briefing during the cruise phase of flight, but vigilance should definitely be increased anytime a briefing is happening after top of descent.
Last edited by punkalouver; 23rd May 2022 at 11:31.