Phone (386) 734-5867  |  Fax (386) 734-8464  |  info@plabsinc.com

Reserve Speedbag

In January of 2003, at the PIA Symposium in Jacksonville, Florida, John Sherman of Jump Shack introduced the S.P.E.E.D. (Sequential Parachute Extraction & Equalization Device) bag as a solution to the possibility of line dump during a reserve deployment. Most freebags produced in the U.S. utilize a single, looped, piece of shock cord bungee Read more…

Main Lift Web Safety Notice

Subject: Re-designation of use. Models Affected: All models of SST/Racers, Racer Elites & Racer Trainers equipped with a single strand adjustable main lift web. Background: The above listed equipment has not been manufactured for over 8 years. It was superceded with a double strand pulley system for adjustment of the Read more…

FireBolt Slider Stop Upgrade

FireBolt Upgrade This notice is to respond to occasional opening problems, which may occur on FireBolts 110 or below. Reported “Occasional Off Heading Openings”; “Slider seems to hang up, then one side will open causing a turn in that direction”. Analysis: We discovered the  braked portion of the tail of the Read more…

New Tandem Main

As of Spring 2003, Jump Shack is proud to introduce a new fully elliptical tandem main canopy. The Tandem FireBolt is 396 sq. ft. of pure joy to fly! It features John Sherman’s signature “Shark’s Tooth” leading edge construction which softens openings, and smoothes the entry section resulting in greater Read more…

What to do in Turbulence?

Necessary Action when Encountering Turbulence The purpose of this article is to illuminate on the facts necessary for jumpers to make an informed decision, so that they may better plan their corrective/preventative action when encountering turbulence while flying their ram-air parachute. We are aware that others have published information contrary Read more…

Planform Primer

A Primer in Wing Planforms. or How the FireBolt was designed. Wing plan forms come in many shapes. The most common is the Rectangular. This shape is defined with a leading and trailing edge as parallel. In ram-air parachute design it only requires 5 patterns. A top skin, a bottom Read more…

Stichless Finger Trap

No-Sew Fingertrap This fingertrap locking method eliminates the necessity of bar tacking the finished line, and is especially useful when working  with the very fine 550 Spectra. Using a fingertrap wire (24 gaugesteel is best), make the initial fingertrap to the desired loop size, making sure you have at least Read more…

Speed Bag

Introducing the “Speed Bag” a new type of deployment bag from Parachute Labs. the manufacturing and development arm ofJump Shack. The Speed Bag is a deployment bag with all of the line stows employed as locking stows. Additionally, the stows are balanced for equalization of mass to further prevent line Read more…