Operation Last-Mile: Critical Drone Delivery Testing Report

Total Elapsed Time

2.28

2.28

0

Speed to Target (mph)

4.8

4.8

0

Speed Returning

15.2

15.2

0

Battery Consumption

10.7%

10.7%

0.0%

This set of flights was easy for the pilots. At this short distance (round trip 581 feet on average) a crew could potentially deliver 4 packages on one set of batteries and 20 deliveries per hour.

Test 2 Results

Test 2 moved the flight crews to the top of the hill and moved the targets to Beyond Visual Line of Sight (BVLOS). The distance was increased by 81% resulting in a 1052 foot round trip (about three times the length of a typical city block). All 15 drops were within the 10-foot target circle. No demerits were scored. Here are the results compared to the baseline of Test 1.

(All times in minutes)

Test 2

Test 1

BVLOS

Results

Control

Difference

Number of Flights

15

15

0

Distance (total feet)

1052.4

580.6

471.8

Time Ascending (Takeoff)

0.49

0.25

0.24

Time to Target

0.91

0.79

0.12

Time on Target

1.75

0.68

1.07

Time Returning

0.47

0.25

0.22

Time Descending (Landing)

0.38

0.31

0.07

Total Elapsed Time

4.00

2.28

1.72

Speed to Target (mph)

7.5

4.8

2.7

Speed Returning

14.5

15.2

-0.7

Battery Consumption

19.3%

10.7%

8.6%

For Test 2, the increased distance of 81% combined with the introduction of a VO guiding the drop increased the elapsed time by 75%. The speed to and from the target actually increased, possibly due to practice. However, because the target was BVLOS, the time on target, as expected, more than doubled to almost 2 minutes. Under these conditions, a crew could potentially deliver 4 packages on a set of batteries and an estimated 13 to 15 deliveries per hour.

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