So I pull into the LHS parking lot and I hear a whap-whap-whap noise.. I look around and in the reflection of the glass window in front of me I see a K-Max heli lifting RTUs onto the building across the street(A Walmart distribution center). We watched him do several lifts, and snapped some pictures. The pilot was VERY good, moving units up very quickly. I'm sure it helped that the wind was dead calm. It amazed me how quiet this helicopter was, since there was no tail rotor to interfere with the main rotor wash.