Originally Posted By: MerditJust out of curiosity, where do you lay the odds if you removed the 35-40 pound saddle and the 170-220 pound rider, assuming a fast horse decided to run a deer down on it's own?
You kind of missed the point of my post. I was rather pointing out that regardless of the "official measured top speed" of an animal, the PRACTICAL speed in the real world is a very different thing. But I'll play along...
To answer your question directly, the difference between the top speeds of an unsaddled horse and a saddled horse, in my humble opinion, is moot. I've RARELY ever seen an unsaddled horse just flat get after it, and I've never seen a "non-track horse" that I felt could out-speed on NORMAL terrain a trained (legitimate) track horse on the track. Quaterhorse speed records are based on speeds on the track, with a 1200lb highly trained and maintained speed machine underneath a 126lb or LESS rig and rider. Horses really don't slow down that much under load, much like football players don't slow down much in their pads (similar proportion, about 10-15% bodyweight). They train in it every day, and a good jockey moves with the horse. They might lose a few mph, but it's really not as much as you might think.
On various occasions, I have clocked horses, whether it was with the radar gun from our baseball team, an LEO friend's lidar gun, a roadside "your speed" sign, or racing beside a pickup. It's not uncommon to come in at 35-40mph with a western saddled quarterhorse on good ground.
Either way, they're faster saddled OR UNSADDLED than a deer, but again, good luck running a deer down on a regular basis (in all fairness, a lot of that has to do with acceleration and agility, deer will get going quicker, then it's much easier for them to redirect 150-200lbs than it is to redirect a 1500lb horse and rider).
Yes, I absolutely agree that on flat ground, or a track, a horse should have a top speed considerably higher than a deer, but my point was that in the real world doing of things, the actual results tend to not reflect that fact.
Similarly, put a funnycar on a circle track against a minivan and see who wins. I'm a sport biker, a Hayabusa will out run a Fireblade on the strip, but put them on the circle track or an MGP course and see what happens, the slower, weaker Fireblade will win. "Faster" doesn't always equal "able to catch". A cheetah doesn't always catch the antelope, a horse can't always catch a deer, but somehow, more often than not, a greyhound DOES catch a "statistically" faster coyote.
Originally Posted By: MerditI've never tried to rope a deer, yet, but I'm thinking a muley on flat ground would be slower than a whitey.
I hadn't weighed in on which I felt was faster between a whitetail or a muley because I honestly don't think it matters much. I'm not sure when "top speed" is honestly a consideration for my hunting of deer? Now, if I were hunting on foot with a pocket knife, I'd want to know which was easier game, and frankly, it's much easier to shoot them standing still than running, so that's where my effort goes.
Since you asked, I would very easily agree that Muley's, while heavier, should outrun a whitetail deer, and it's something universal across pretty much any species. In comparing any two animals, assuming similar physical condition, the one with more muscle and a longer leg will GENERALLY have the higher top speed, muley's have BOTH.
Muleys might weigh more, but that weight is made up of muscle, meaning more driving force to propel themselves, and they have longer legs, meaning for every stride they cover more ground. A lighter, shorter whitey should accelerate faster, but as far as top speed goes, the muley has the physiologic advantage.
Similarly, greyhounds can outrun Jack Russell Terriers, a 17hand thoroughbred will generally have a higher top-speed than a 15hand quarterhorse, wide receivers can outrun linebackers, etc etc. The more muscle an animal has dedicated to propulsion, and the longer their leg, the faster their top speed.
(Keep in mind that musculature and leg length are inversely related when it comes to acceleration and agility compared to top-speed. Quarter horses get to top speed faster than thoroughbreds, but they top out sooner. That's why we have both, to suit both types of races).