Disc golf discs are a little bit different than a normal throw and catch Frisbee or an ultimate disc. The difference being that golf discs have a beveled edge. When looking at the profile of a disc, you will see that instead of it being rounded, it slopes in towards the center of the disc. This allows the discs to be thrown with more power, and achieve more distance out of the flight. When a disc is thrown flat, there is a certain speed that the disc needs to be thrown so that it achieves the flight that the disc is designed to perform. All discs as they start to slow down at the end of their flight go left if thrown right hand back hand. If thrown left handed or with the sidearm technique it will go right naturally at the end of it's flight. Part of throwing golf discs is accounting for the tendency to go left (or right) at the end of the flight.
Disc Flights and Flight Numbers
Flight numbers are a set of four numbers that are used to define how a golf disc is supposed to fly if thrown at the appropriate speed and on a flat plane. The four numbers, in the order presented are defined as:
Speed (1 - 15): the speed at which the disc must be thrown to achieve the desired flight path
Glide (1 - 5): the ease at which the disc fly through the air
High Speed Turn/Turn (1 - -5): How much the disc is going to move in the opposite direction of the natural fade in the duration of the flight
Low Speed Turn/Fade (0 - 5): How much the disc will naturally want to go left (or right, see last section for details) when it slows down at the end of the flight
Choosing the Right Disc
Since all discs fly a little bit different than each other, choosing a disc relies on two main factors:
How does this disc fly for you?
How does the disc feel in your hand?
Can you get the disc to perform how it was designed?
How the disc flies is the most important factor for anyone choosing the right disc. Since most people carry more than once disc, you'll need different discs that will fly like you want it too. Or more specifically, discs that fly differently, so that you have one for most shots that you throw.
Flight Charts When buying a new disc, you will want to know how the disc that you are buying will fly when thrown. There are many different flight charts for different companies. FlightAnalyzer.com is one the best resources for figuring out how a new disc will fly compared to some that you already own.