Goody!
Thanks for the mention of the dog guard make, I will look it up as an extra protection in addition to all the padding in the boot.
Goody!
Don't take the diagram too literally. Cars often rotate forward in a crash. And the forces involved are huge. At 70, a 30kg dog would destroy your rear seats anyway.Pete wrote: ↑Mon Aug 21, 2017 2:38 pmYes, it would need to rise. The centre of gravity will need to be above the rear seat rests in order to be ejected forwards. As demonstrated in your link, the deceleration forces are entirely horizontal - any uplift of the rear would only happen after that initial deceleration. The dog would then be firmly pressed against the backs of the rear seats.goron59 wrote: ↑Mon Aug 21, 2017 2:08 pm Not much.
If the car rotated forward, it wouldn't need to rise as such. Plus a rotating moment would throw everything up in the air. 30mph is plenty for an unrestrained dog to be propelled forward and eventually decelerating to zero when it hits a solid object (windscreen, seat, your head).
If the dog was restrained, it would decelerate slower along with the car's crash structures.
This is fun: substitute "driver" for "dog" and you get a feel for the forces involved.
http://hyperphysics.phy-astr.gsu.edu/hb ... 2.html#cc1
So, up until the point at which my throat is slit with my dog's decapitated head, I'll be putting the dog in the back, the same as I always have done.
But in any case, I do have a Trav-All dog guard above the rear seats, so the most that'll be ejected forwards is two-inch square dog-chips....