As well as subs and other weapons this blog covers major transport mishaps. jbmoore from Texas kindly drew my attention to the video, here and above, concerning the tragic Australian Gold Coast, Queensland, Helicopter Collision of Jan 2, 2023.
The video by California pilot/air safety analyst Juan Browne, provides vastly more detail than has been provided by the Australian mainstream media to Australians.
Particularly note:regarding the [helicopter = "helo"] landing patterns and take-off patterns"
4:40 both helos were in respective pilot "blind spots" (in part caused by new, unfamiliar seating arrangements, in the NEW helos the pilots were probably getting used to)
5:57 a view that was screened on Aus media
8:07 the blind spot problem is well known in the helo industry generally
Both helos seemed to be flying too low (eg. below the height of the tallest buildings around them) for "ADSB" navigation network which could have alerted air traffic controllers and the pilots to the oncoming crash.
9:30 did the helo flights, every 5-10 minutes, represent too high a number of air movements, leading to lapses in inter-helicopter communication, lower "situational awareness" and too high a workload for the pilots?
10:00 Juan Browne raises many other questions and issues.