Roc Lover wrote:
kern9787 wrote:More spin cannot be generalized into more or less stable. It will equate to straighter in general, more HSS, less LSS. I can't expand on it right now, but I will in a little bit. Look up moment of inertia if you're curious in the meantime.
To me stability is resistence to turn and fade during flight (staying flat basically) so without getting into varibles of weather and power req's disc to disc, how is this untrue?
You have the right idea. In your terms, more stable = more high speed stable (i.e. more resistance to turn) and less low speed stable (i.e. more resistance to fade), which essentially means a straighter flight. More spin gives you exactly this.
Where we differ in views on this though is the low speed stability. In my train of thought, more stable is more resistance to turn (more HSS) and/or a stronger fade (more LSS). I can't say for sure if there is a physics reason as to why stability is defined that way, but that is the way I've always seen the two stabilities defined. Blame Innova.
Its this exact reason why I dislike seeing discs generalized as a more stable this or less stable that. If you were to ask 100 people which is more stable, a teebird or an eagle-x, you'd probably get a 50 50 split on answers and they'd all be able to correctly justify why they picked their answer (I'd guess you'd pick teebird based on your last post, as it fits your idea of stability).
I agree with this. But something came up the other say during league play. 35-40 foot lie, ~15-20 ish headwind for my friend. He initially grans his putter and is standing sideways as if he is going to throw a slowish bh shot at it. He stops and gets a cfr gator from his bag, says he wants more stability for his wind, but then lobs his gator with barely any spin if any at all, wind throws it around, he is confused. I tell him that spin is needed for that disc to be "stable". He retorts without spin its " all stability", take into consideration hes regurgitating terms to make it sound like he knows everything which is common with him. But in fact, a discs rate of spin does have an effect on its ability to stay flat and travel forward at the same time right?
I've seen winds do all sorts of nasty things to even the most stable discs when little spin is used. The best shots in these situations, for me at least, usually involve a lot of spin and just enough speed to get there with a putter or straight mid.
To give you an idea of how much spin can affect stability, its not uncommon for me to see my putters turn over more on long putts than they do on drives, even with some wind. I'm generally a (bad) pitch putter. My longer putts get a little more spin, but still don't have much compared to the velocity I put on them. Not to mention I probably keep the disc too flat for pitch putting. I should have more nose up. This has its advantages and disadvantages of course though (I have an easy time putting around stuff for the most part).