Projectile Yaw Angle System

Name: Projectile Yaw Angle System
Brand: R+P MESPRO

Optical test system for capturing projectile orientation immediately before impact on protection materials.

NIJ 0101.06NATO STANAG 2920VPAMPTI

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Measurement Projectile orientation, derived from α and β angles

Caliber range 4–14.5 mm; 20 mm FSP

Velocity 10–1800 m/s

Description

The Projectile Yaw Angle System captures the orientation of a projectile shortly before it reaches the protection material. For meaningful protection tests, the projectile should strike the sample as close to its flight axis as possible, so the kinetic energy is introduced under the intended test condition.

The measuring station is installed close to the sample. After each setup, the flight path is referenced with a calibration rope. During testing, two projectile views are captured and evaluated against that reference.

Measurement Principle

Under dimmed lighting, the optical trigger gate fires two short-duration flashes as the projectile passes through the sensor area. The resulting shadow images appear on reflective target foils, are recorded by two digital cameras arranged at right angles, and are sent to the evaluation PC.

The software combines the individual α and β angles with the calibrated trajectory. The resulting projectile yaw angle is then available for documenting the impact condition.

Applications

Yaw verification for protection material testing according to NIJ, STANAG, VPAM and PTI
Ballistic test stands for single-round measurements with non-tracer projectiles
Preparation and documentation of defined impact conditions
Measurement of small projectile angles in the 10–1800 m/s velocity range

Angle determination from two shadow images captured at right angles
One-shot capture for projectiles without tracer composition
Caliber range 4–14.5 mm plus 20 mm FSP
Velocity range 10–1800 m/s
Active sensor area 380 × 380 mm
Roll-mounted 45° optical measuring frame

Technical data

Measurement	Projectile orientation, derived from α and β angles
Caliber range	4–14.5 mm; 20 mm FSP
Velocity	10–1800 m/s
Active sensor area	380 × 380 mm
Accuracy	FSP < 1°; 5.56 × 45 mm < 0.5° (examples)
Measurement mode	One-shot capture without tracer composition
Cameras	2 right-angle digital cameras with 24 MP
Dimensions	1730 × 507 × 1890 mm (L × W × H)
Weight	approx. 70 kg
Software	Control, data capture and automatic angle evaluation
PC output	Windows desktop or notebook with MS Office/Excel; printer for data output