What Role Will Technology Play in the Future of Law Enforcement Firearms Training Facilities?
By William Stuart
Huntington Beach Police Department
The Future of Realistic Training
The Command College Futures Study Project is a FUTURES study of a particular emerging issue of relevance to law enforcement. Its purpose is NOT to predict the future; rather, to project a variety of possible scenarios useful for strategic planning in anticipation of the emerging landscape facing policing organizations.
This journal article was created using the futures forecasting process of Command College and its outcomes. Defining the future differs from analyzing the past, because it has not yet happened. In this article, methodologies have been used to discern useful alternatives to enhance the success of planners and leaders in their response to a range of possible future environments ...read more _______________________ |
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Shooting Range Noise
Higher Absorptive Value provides safer environment for the shooter
After conducting comprehensive testing the results clearly show that high levels of absorption across all frequencies are critical in shooting ranges. This is needed to insure the health and well being of the range personnel and shooters.
Currently most range designers only look at NRC values. What does that mean?
NRC stands for Noise Reduction Coefficient. To test for NRC you use a known reverberant room. The reverberation time (RT60) is measured in the room without and with a sample of absorptive material being tested. From the differences in the reverberation time (RT60) the NRC is calculated. Even though the reverberation time (RT60) is measured typically from 20 Hz to 20,000 Hz only four-frequencies are averaged to derive the material's NRC, 250 Hz, 500 Hz, 1000 Hz, and 2000 Hz. These frequencies were chosen in the 1930's based on speech intelligibility in an auditorium. They have nothing to do with the complex blast impulse wave we know as gunfire ...read more
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