Team effort
Mark Walczyk, Army Primary Standards Lab Mass and Force lead engineer, watches as Wayne Brown, ATA rigger, guides a calibrated weight into position for installation into the 12,000 pound-force calibration machine. ATA Rigger Nathan Colvin communicated via two-way radio with Toni Green, the ATA crane operator outside the building. (Photo by James Winchester)
PHOTO BY:
James Winchester
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