Skydiving School (Dictionary)

Below are commonly used terms by expert skydivers and Skydive Philadelphia's staff. If you do not see a term in our dictionary that you have a question about, feel free to give us a call!

Accelerated Freefall

A skydive that is performed without an instructor attached via harness. 2 Instructors will accompany the student during their jump to ensure that the skydive goes as planned.

Altimeter

A device that measures the skydivers current altitude. Altimeters are used to judge height above the landing zone and allow the instructors to deploy the parachute at proper altitude.

Automatic Activation Device (AAD)

A device that is connected to the reserve parachute container. AAD's automatically deploy the reserve parachute at a pre-determined altitude, speed, or time.

Canopy

Also known as parachutes, canopies allow each and every skydiver to land at a safe and comfortable speed.

Drop Zone

Any area that skydivers reserve to land. Drop Zone can also refer to the skydiving establishment, as a whole.

Freefall

The time during a skydive that the skydiver is falling without the parachute deployed. Freefalls typically last anywhere from 45-60 seconds.

Harness

An object which holds the skydiver securely inside the parachute system.

Pack

To properly fold the parachute system before a scheduled jump.

Pilot Chute

A smaller parachute that is used to allow the main parachute to open correctly and promptly.

Tandem 

Refers to the sharing of one parachute system with another person. Tandem jumps are typically performed by newcomers and students.

Wing Suit

A jumpsuit that is designed specifically for the act of gliding horizontally until parachute deployment.

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Testimonials
Had an amazing experience! Everyone was friendly and Steve my tandem master was very professional and made it a great day I would go again today. I will be back!
- Bob McCoy

Want to have the time of your life ?.....Jump out of an airplane at 14,000 ft. ! ! These guys are freaking incredible ! Great second jump,had a blast. Thanks J.J.(instructor) & Junior(video). Also thanks to Danielle & Kayala
- Scott

I just did my first tandem jump at Skydive Philadelphia in Perkasie and it was amazing! I had so much fun and the instructors were great. They made me feel safe and relaxed and kept reminding me what to do. They pointed out the city skylines and everything. I would love to come back next year!
- Nicole