Helicopter v2 - solved - see Molly EP and RandyO replies

[Sal DeVincenzo]

The survey will use a helicopter equipped with an elongated “stinger” mounted to the underside of the cabin extending forward of the helicopter, according to the news release. Instruments in the stinger and inside the cabin will reportedly measure variations in the Earth’s magnetic field and natural low-level radiation created by different rock types.
I think it is a magic wand sprinkling fairy dust....