Table 3.

Summary of controlled exposure experimental focal follows with an unmanned aerial vehicle (UAV) with mean flight times and standard deviations (in brackets). The closest point of approach (CPA) of the whale-watch vessel is listed, and the minimum and maximum range to the animals, along with the mean group size of pilot whales.

Type	n	Total UAV flight time (h)	Mean flight duration (min)	Average CPA (m)	Range (m)	Mean group size (n)
Control	13	2.6	12.5 (0.002)	NA	200	5 (2.2)
Electric	13	2.5	11.6 (0.002)	64 (15.6)	54–115	6 (3.0)
Petrol	10	1.9	11.5 (0.001)	55 (14.5)	35–71	7 (3.9)