How to Wingsuit and How Wingsuits Work

How to Wingsuit and How Wingsuits Work

Published: February 21, 2017

How to Wingsuit

A booming market has facilitated a sprawling showroom of variations, but the basic design tenets remain the same: a human-shaped suit, with two wings connecting the arms and torso and one wing connecting the legs. Inflated by relative wind, the suit forms an airfoil. That airfoil shape provides sufficient lift to carry a skilled pilot far across the sky (or away from a cliff, or - in some cases - closely over terrain).

Wingsuits work using principles similar to those of every other human-made airfoil, from fighter planes to paragliders. A wingsuit is, at its heart, an airfoil built around a person--so, just like planes and paragliders, the pilot needs to learn how to fly it. It is not as easy as it might look to control one of these babies. Here are a few key questions, answered:

1. What are the basic requirements to wingsuit?

The United States Parachute Association recommends that each person making their first wingsuit skydive have at least 200 jumps in the past 18 months. Aside from those basic guidelines, wingsuit manufacturers offer more specific instructional ratings for their products. It's important to note that all skydivers, regardless of experience in other disciplines, have to seek thorough training in flying wingsuits, even if they have thousands of jumps doing other kinds of things. It's serious stuff!

2. How far can you go in one of those?

A wingsuit behaves like any other airfoil: It creates a combination of the aerodynamic forces of lift and drag. The balance between the two is referred to as the wingsuit's "glide ratio." It indicates the aerodynamic efficiency of the wingsuit pilot, and it's expressed as a number that shows the total meters of forward distance flown for every meter of altitude lost. For example, a wingsuit that goes two and a half meters forward for every meter it falls has a glide ratio of 2.5:1.

A skydive is usually performed from around 12,000 feet over the landing area, and wingsuiters often deploy their main parachutes 9,000 feet (3 kilometers) below that altitude. At that respectable glide ratio of 2.5:1, a wingsuit pilot can cover about 7.5 kilometers of distance. That number doesn't remain constant. It not only changes with the shape and volume of the wingsuit pilot in his or her gear, but also with the weather conditions (such as headwinds, crosswinds and tailwinds) and the pilot's airspeed.

So: If you're not watching where you're going, you can end up very far from the dropzone. Very, very far.

3. How fast can you go?

An airfoil requires airspeed to even work. Airspeed generates lift. Without lift, you ain't goin' nowhere.

In fact, the speed at which the airfoil moves through the air has everything to do with how efficiently it can fly. No plane can take off if it's not moving, right? The same is true, of course, for wingsuits, and the skilled variation of airspeed is key to success in the discipline. A skilled wingsuit pilot is able to fly throughout the range of airspeeds available to him/her with his/her body and equipment. The minimum airspeed required to generate sufficient lift to fly is called stall speed, below which the wingsuiter will no longer, by definition, be flying.

The wingsuit pilot's personal relationship with glide ratio tends to revolve around two key numbers: "maximum glide" and "minimum sink." The former reflects the airspeed at which the wingsuiter flies the greatest distance forward for each meter of lost altitude. (This number usually hovers around 30-40% greater than the wingsuiter's stall speed.) "Minimum sink" is, as the term implies, the airspeed at which the wingsuiter loses the least amount of altitude, though he/she will not fly as efficiently as they do at their max glide. Flying at minimum sink delivers longer freefall time, but the pilot covers significantly less distance.

So, without further ado: A typical wingsuit's forward speed-not accounting, of course, for the forest of variables that can affect it-hangs out at around 100 miles per hour.

4. How important is it to learn in a responsible way from a qualified coach?

Well, then.

Every manufacturer--because, y'know, capitalism--insists that their wingsuits deliver the best glide, start flying the quickest and is clocks in as the fastest suit in the atmosphere. That might make you think that you're buying, like, a car, and that you can just hop in and smash the gas and it'll do what you want. Nothing could be farther from the truth. Putting in the jumps before you put on the suit might just save your life.

Past that, hear us out: Signing up for a well-administered first wingsuit jump course (FWJC) at the proper time in your skydiving career isn't just smart from the perspective of safety; it'll ensure that you aren't overburdened with newbie concerns when you make that jump, which will significantly improve your relationship with the challenge presented by the wingsuit. Taking this process step by step is vital, and San Jose Skydiving Center can be with you from the very beginning of your journey.

We look forward to spreading our wings with you!

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