alt Hacker NewsFrom sled tests done by Australia in 2022:
> A lap-belt restrained adult dummy in an aircraft seat, with an infant dummy in a carrier, was subjected to a 9G dynamic sled test. The severity of the pulse was based on the results of a static load test. The commercially available infant carriers tested were not able to restrain infants under crash situations.
https://www.atsb.gov.au/publications/research-and-analysis-r...
The missing comparison is to a parent holding the baby in their arms, which I expect would also fail a 9G test. We're not making babies safer by requiring parents to take them out of babywearing carriers.