MarkHKG From United States of America, joined Dec 2005, 960 posts, RR: 2 Posted (8 years 5 months 1 day 8 hours ago) and read 6592 times:
A "Break over" feature is required for most passenger seating, with a small exception of unusual seats or seats in the exit row. I was curious to what the rationale for this feature is. I have heard a wide range of explainations on this topic, including those that say the break over feature: (i) assists in absorbing head impacts during a crash, (ii) assists in evacuations since you can push the seat out of the way, or (iii) allows for positioning in a brace positon before an impact.
Does anyone know the "official" reason why seats have the break over feature?
Some explainations I have found...
"The "break-over" position helps protect the seat cushions during cleaning and servicing operations and also helps to protect a passenger seated immediately rearwardly in a crash situation"
"...existing mechanical devices (break over) commonly used to reduce the impact load from the head of a person striking the seat back frames of the row of seats in front during a forward crash."
Release your seat-belts and get out! Leave everything!
Kaddyuk From Wallis and Futuna, joined Nov 2001, 4126 posts, RR: 24
Reply 1, posted (8 years 5 months 20 hours ago) and read 6483 times:
There is a component called a Hydrolock which governs the force at which you can push the seat over.
Somone correct me if i'm wrong...
Its to give the body a place to move in an impact. If you hit the seat infront and it collapses you make the deceleration forces on the body act over a longer time period, therefore reducing the energy sent through the person and increasing the chance of walking away
They also assist in the loading of a stretcher which fits into the seat tracks and sits ontop of the collapsed seats.
Whoever said "laughter is the best medicine" never had Gonorrhea