I honestly think I would be much more confident when I trail ride with one of those on. I just wish they made a jacket with inflatable sleeves as well. I really hurt my arm on some hard ground a few years ago and it makes me paranoid!
While the torso takes a lot of punishment, consider the head and upper extremity take 50 or more percent of the injuries. If you discount the number of injuries by kick, percentage increases.
I would also wonder what the deployment times are and the length of the tether? It would have to be modified for posting and (dis)mounting. The list goes on.......not to be the naysayer, just does not seem practical for the rider.
"Accidental activation is not likely as a 25kg force is required - so if the rider forgets to unclip from the coil wire the airbag will not be inflated, only feel a strong tug to remind him/her. Riders soon adapt to the new clip-on / clip-off attachment system."
"Activation is by a short lanyard (coil wire) secured to the horses' saddle which pulls a spring loaded trigger out of the riders jacket when the rider (and/or pillion) is thrown from the bike."
You attach the lanyard to the D ring or bucking strap.
I'd rather see ain air bag that blows up to cushion the HORSE when it falls into or over an unforgiving jump.
You gave me a good laugh. I have a mental image of a horse falling over a jump and suddenly disappearing into a giant air bag. All you see is four hooves sticking out of the top and you can just make out the muffled voice of the rider "mmgghhmmm ....we're okay..."
I love cooking with wine. Sometimes I even put it in the food.