
SUCCESS STORY
Fielding Of The Improved-Safety Handheld Signal Packaging System
Industry
Defense & Military
Client
U.S. Navy
Tech
Improved Safety HHS for PM-CAS
Dev Time
4 Months
Release Date
June 2, 2024
Redesigning And Successfully Fielding The Handheld Signal Packaging System To Eliminate Safety Risks For The US Army
ARMY’S URGENT NEED TO RESOLVE SAFETY RISKS OF HANDHELD SIGNALS
The U.S. Military commonly employs handheld pyrotechnic signals to alert nearby personnel of an emergency, request assistance, or communicate critical information in situations where other forms of communication are not viable. In the early 2000s, a major safety issue arose with the handheld pyrotechnic signals due to an incident during the Iraq War. A handheld signal was accidentally set off inside of an ammunition depot, igniting nearby explosive ordnance devices, and ultimately resulting in multiple injuries and fatalities.

The incident stemmed from a design flaw in the packaging system that caused the firing cap to get lodged inside the container’s tube when inserting the device at an improper orientation. Once the soldier took out the signal and reinserted it into the container, the primer of the flare would hit the firing pin of the stuck firing cap, setting off the flare. This type of incident occurred frequently in open fields for the field handheld signals, but it did not result in personnel injury or property damage until this accident happened in the overseas ammunition depot.
After this incident, the Army immediately assigned PEO-Ammunition, Project Manager - Combat Ammunition Systems (PM-CAS) to identify the root causes of the incident and develop a reliable pyrotechnical signal by redesigning the pyrotechnic signal systems to eliminate the risk of accidental ignition of the signal to ensure the safety of the soldiers.

FPP DEFENSE’S SOLUTIONS: A COMPREHENSIVE SYSTEM OVERHAUL
Working with PM-CAS and DEVCOM-Armaments Center, FFPD addressed this issue by developing an innovative system solution that eliminates the risk of accidents while handling pyrotechnic signals. FPPD’s approach involved the following key elements:
1. Comprehensive Systematic Approach
Using advanced engineering techniques, a solution was developed to enhance safety and usability. The internal design of the PA 142 container and the external shape of the flare’s firing cap were re-innovated to ensure the signal devices could only be inserted in the proper orientation, preventing the firing cap from becoming lodged in the tube.
2. System Simulation and Virtual Prototyping
Before constructing physical prototypes, FPPD employed cutting-edge simulation software LS-DYNA to model the container’s behavior under different stress conditions. These tools allowed for the simulation of various shock, vibration, and impact scenarios the container might encounter during transport and use in the field.
3. Material Development and Selection
In parallel with the system design, FPPD carefully selected materials that enhanced safety while maintaining durability.
4. Prototype Fabrication and Testing
FPPD utilized a state-of-the-art injection molding process to manufacture the initial batch of containers and firing caps. After extensive laboratory tests, they were deployed in field trials with soldiers in realistic operational settings.
5. Successful Deployment and Impact
Following the successful completion of prototype testing, the new system was rolled out for deployment across the U.S. Army. The upgraded PA 142 container and hand-held signal system effectively eliminated the risk of accidental ignition caused by improper handling. The new design met or exceeded all required military safety standards, ensuring peace of mind for soldiers and command staff.
INNOVATIVE SOLUTION THAT IMPROVES THE SAFETY AND SAVES LIVES
Working closely with the Army’s PM and engineers, FPPD successfully designed an innovative integrated handheld signal system that was validated through modeling and simulations. FPPD also developed composite materials for the system, designed and fabricated the molds, and produced the prototypes for the new handheld signal system.
These prototypes were delivered to the Army where they validated the new system, which not only improved safety but also passed all the performance requirements in the military specification. Subsequently, FPPD assisted PM-CAS in preparing all the drawings and data packages to allow the Army to field this new handheld signal packaging system. This new packaging system has been incorporated in the handheld signal flares production since 2015.
This successful project exemplifies the power of engineering design, modeling and simulation, material development, prototype fabrication, performance validation, and collaborative problem-solving to tackle real-world challenges and ensure the safety of those who serve on the front lines.












