Bungee as safe restraint?

Ok, this is a bit off topic, but I figure someone here might be the
expert on the subject.

The folks in the Greyhound adopton world are unaminously of the
opinion that tethering a greyhound will inevitably lead to it's death
by broken neck.  They do have something of a point, the Greyhound can
accelerate at approximately 2.5 m/s^2, reaching their top speed of
14.6 m/s before they reach the end of the average 10 or 20 foot
tether.

Even though Greyhounds should not be left outside for long periods,
the ability to tether a dog is very useful to owners that want to take
their dogs on picnics, campouts, or the like.  I think it should be
possible to tether a greyhound safely if sufficient shock absorption
was provided in the tether, and/or a harness was used in place of a
collar.  The Greyhound adoption folks that post the information about
tethering do not wish to investigate this possibility, for fear that
people will use it to the detriment of the dogs (leaving them tethered
outside for long periods) instead of their benifit (taking the dog
more places because you can safely secure them to a tree or stake
wherever you go.)

So, with an acceleration of 2.5 m/s^2 (almost 1/4 gravity) and a mass
of around 70 lbs, and a max length of 20 feet, what kind of bungee
would provide the shock abosroption needed?  Could enough absorption
be provided for this to work with a collar, or is a harness needed?
What kind of harness?  (There are dog harnesses designed for pulling a
load, that may be safer for this than the ones designed for just
walking on leash.)

How fast would a bungee wear out under frequent light load
conditions?  I expect most dogs would rather pull the bungee taunt
than be restricted in their movement.

What is the injury potential if a bungee meeting the above reqirements
got tangled around a leg before the animal accelerated?
[ Auf dieses Posting antworten ]