Luna Park - D4 Bipod Rigging Practice Aerial rigging, Luna Park, New Mexico. These are images of our second time experimenting with rigging the D4 Bipod sent to us by John Middendorf. Aerial rigging, Luna Park, New Mexico.Aerial rigging, Luna Park, New Mexico.Aerial rigging, Luna Park, New Mexico.Aerial rigging, Luna Park, New Mexico.Aerial rigging, Luna Park, New Mexico.