Many first-time skydivers get anxious at the thought of something potentially going wrong on their skydive (this is totally normal by the way), but many don’t think about the brilliant backup systems in place should anything go haywire. We’re here to help put that worrying head of yours at ease with news of a little fancy doodad called an AAD!
An AAD is a skydiving Automatic Activation Device. This is a small electronic computer about the size of your finger that is placed within the parachute system itself.
The role of the AAD is to calculate both altitude and the rate of descent. If the device determines that the skydiver is falling faster than a certain speed at a certain altitude, it will automatically initiate the deployment of the reserve parachute (this is the second – or backup – parachute within each skydiving rig). Why? Because the device assumes that the skydiver is unable to do so themselves for whatever reason, and essentially saves them from a potentially traumatic impact.
So, how does an AAD work? At its core, an AAD combines cutting-edge sensors, advanced algorithms, and precise mechanics to monitor a skydiver’s speed and altitude in real-time. Once turned on, the AAD calibrates itself to ground level before the jump to ensure accurate altitude measurements throughout the skydive.
As a skydiver falls, the AAD’s Processing Unit continuously tracks the rate of descent and altitude by measuring barometric pressure. If a jumper is still in freefall at a critically low altitude, and their speed exceeds a certain threshold, the device triggers the release of the reserve parachute by using the Cutter Unit that severs the closing loop of the reserve parachute container. Once this sequence is initiated, the spring-loaded pilot chute is freed which pulls the reserve parachute out as quickly as possible – adding precious life-saving seconds.
At what altitude does AAD deploy? The altitude is actually preset by the individual skydiver before the jump by using the Control Unit so that the altitude at which an AAD deploys can vary. Typically, an AAD will fire anywhere from 750 to 1,000 feet above ground level (AGL) as this is the absolute lowest altitude that someone can deploy the parachute for the best chance at a decent landing.
Skydiving is a thrilling experience and there is no doubt that safety remains the top priority every step of the way. But even with extensive training and preparation, the unexpected can still occur. This is where the skydiving AAD becomes an indispensable safety feature.
The AAD acts as a reliable backup when jumpers are unable to deploy their parachutes themselves. So in case a skydiver is distracted, disoriented, or experiencing a medical emergency (such as losing consciousness), the AAD would detect this and deploy the reserve parachute automatically.
Even for highly experienced skydivers, the AAD provides critical peace of mind. While many believe that confidence and skill reduce the likelihood of errors, these two qualities can also drive skydivers to become a bit complacent. Skydiving accidents often occur because the jumper makes a simple, but potentially tragic, error in judgment.
Beyond personal safety, AADs are also essential for meeting industry regulations. In the United States, the United States Parachute Association (USPA) mandates the use of AADs for certain types of skydivers.
For tandem skydives – where an instructor and student are harnessed together – AADs are mandatory. These jumps prioritize safety for both participants the most, and the AAD ensures that the reserve parachute will deploy automatically in the rare event of an emergency.
Student skydivers going through the Accelerated Freefall (AFF) program, AADs are a requirement as they are still mastering the basics of parachute deployment. For licensed jumpers, AADs are strongly recommended and are often required by dropzones.
While all AADs perform the same life-saving function, there are several types of AADs on the market, each offering unique features and capabilities. The most common AAD brands include:
CYPRES devices are among the most trusted and widely used in skydiving. They are known for their precision, durability, and ability to operate in extreme conditions. Different models cater to various jumpers, including tandem skydivers, students, and licensed jumpers.
Vigil AADs are versatile and feature multi-mode functionality, allowing skydivers to switch settings depending on their needs. Modes include tandem, student, and expert (PRO), making them a popular choice for both beginners and pros.
The MarS M2 is an innovative AAD that offers a lightweight design and straightforward maintenance. It can be used in both recreational and military skydiving.
No matter which brand you go with, the AAD is an impressive piece of technology that has revolutionized skydiving safety as a whole. By serving as an additional backup in a life-or-death situation, AADs provide peace of mind and critical protection for jumpers of all experience levels. So, whether you’re gearing up for your first tandem skydive or solo jump, understanding how this device works and why it is essential can give you the confidence to fully enjoy and get the most out of your unique adventure.
Come jump with us at Skydive Tecumseh – we’ve got your back (literally) with our AAD-equipped skydiving gear! Blue skies!
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