Applied Knowledge

Blast Engulfment – Video

Check out this video showing the blast engulfment of a blast test fixture. Watch closely starting at time stamp 0:19 and you can see the blast wave propagating across the ground and then wrapping around the structure.  This is a good video to remind you that blast loading is not just based on ‘line-of-sight’.



Please join us at our Protection in High Threat Environments – Demonstration Course where we will discuss blast and other attack phenomena in the morning…and demonstrate it in the afternoon. 

The early registration deadline (February 28) is nigh. Sign up soon and reserve your spot!  Click here for more information.


Protective Knowledge: Protection in High Threat Environments – Demonstration Course

Stone Security Engineering is pleased to announce our latest, and most exciting, protective design short-course.  Developed for attendees from all backgrounds and disciplines who work in, or protect, people in high threat environments, this course is intended to provide practical information and solutions to the complex challenge of protection.

The course will be 4-days long and will take place during the first two weeks of June 2018 (we are finalizing course logistics now) in Bend Oregon, at Stone-OBL’s blast test facility.  The class will include a unique combination of classroom instruction and live demonstrations of blast, ballistics, and forced entry effects.

Instruction will include discussion of different threat types (blast, ballistics, forced entry, vehicle ramming), how they affect people and structures, and how to defend against them.

  • The classroom portion will address the relative levels of protection provided by standard construction, the types of retrofits which can improve protection, and the process of providing protection.
  • The demonstrations will include
    • blast tests of typical building materials,
    • ballistics and forced entry effects on typical and specially designed materials

Stay-tuned for more information and final dates.   Registration will open in January 2018.

We look forward to seeing you in Bend!

If you have any questions, please email or call us at

[email protected]

+1 646-649-3169


Recent Incidents: October and November 2017

October and November have seen a lot of terrorist activity around the world, with some new attack modalities and a continued trend toward attacking soft targets and places of worship.

Overall, there were more than 25 significant attacks resulting in greater than 900 fatalities.

These recent attacks show a wide range of tactics, techniques, and procedures including a vehicle ramming in New York City, small arms attacks in Las Vegas and Texas, a large VBIED in Somalia, and a highly coordinated attack in Egypt combining initial rocket propelled grenades followed by gunfire.   The largest attacks in terms of loss of life were the VBIED in Somalia on October 15 (>350 fatalities) and the Mosque attack in Egypt on November 24 (>300 fatalities).

Collectively these incidents show the continuing and increasing need for physical protection and planning for multiple attack modalities – even in locations previously considered to be low threat areas.

Stone Security Engineering tracks major terrorist incidents on a regular basis.  Click here for more information.