## Exhibit D Pinnacl X Pilot and Visual Observer Operating Procedure

Multirotor Operating Procedure The observer and pilot work together to position a multirotor for inspection. Prior to the flight the observer and pilot will walk the designated flight area and identify the flight path and alternate flight paths around obstacles. Also the team will identify possible forced landing areas in case they encounter a problem or emergen cy. The pilot and an observer will discuss and agree on the approach to a holding position at a safe distanc e away from the filming point . Once the flight path has been identified and

agree d on, the pilot will fly the aircraft to the holding position near the designated filming point . Next the observer will direct the pilot to reposition the multirotor to the filming point for taking photographs and or video. The observer will us e the real time video to provide guidan ce to the pilot along with line

of

- site. The observer can use first person view, FPV, goggles or video screen. Also the observer should position themselves in a different location to see the aircraft from a different angle. The observer should move with the aircraft to provide the best vantage p oint. The pilot should move only when the aircraft is
in GPS position hold at the holding positon and remain at the same location when the aircraft is within close of the filming point or obstacles . The pilot and observer must maintain the communication

re quirements for multirotor aircraft flight as outline d in T able 1. In the event of a failure of one of the communications requirement

, the pilot will reposition the aircraft to a safe location and request that the communication requirements be reestablished . If that is not possible then the pilot will land the aircraft and reestablish the communications.

Table 1, Communication Requirements for Multirotor Aircraft Flight

1) 10 meter position between pilot and observer . Observer should change positions dur ing the flight for the best vantage point. The pilot should only move when the aircraft is at a holding point, not when the aircraft is in close proximity of a structure or lines. 2) Pilot and observer must be able to see each other

. 3) Pilot and observer must be able to hear each other in a normal tone

. 4) Pilot and observer must be in line

- of

- s ight of the multirotor aircraft.

Loss of Communication between Pilot and Observer: The pilot and observer will be standing two meters from each other and within visual and vocal range. Both the pilot and observer will be in visual line of sight of the multirotor aircraft, table 1. If any of the four communication requirements listed in T able 1 are violated the multirotor aircraft will be landed and the condition will reestablished before flight. Loss of Communication Between Controller and Multirotor Aircraft If the communication link between the transmitter and receiver is lost the mul tirotor aircraft will auto land by holding its current position and throttle reduction. The communication link strength is monitored continuously and the transmitter will beep if there is a signal strength reduction. If there is a significant reduction in signal strength the pilot will immediately fly the multirotor aircraft to a close position and or land the aircraft as necessary. Additional Safety Features The video on screen display, OSD, displays the following data, battery voltage of the multirotor aircraft, signal strength between the controller and aircraft, aircraft position and GPS satellite signal strength. Or the pilot’s transmitter will display the telemetry. The pilot also can set a timer on the transmitter. The controller will also provide a n alarm when the battery level is critical or if the multirotor signal strength
is reduced.