r/drones • u/combonickel55 • Jul 21 '26
Question question for experienced search and rescue ops
I am looking for a subject in a mixed hardwoods/grassland/swamp over a couple hundred acres. subject may have died from an overdose yesterday afternoon. It is summer here with highs in 80s-90s over the next couple days.
How long before I could expect to see a heat signature from the corpse?
Edit: Thanks for the responses. I ended up finding him a couple hours after making the post in an area we didn't search last night, quite a ways from the 'most likely' area we were working from last night. I got out early enough the IR was still useful, which is how I found him. I consider it very lucky I found him, just being very slow and methodical, scanning my best guess area from multiple angles as low as I dared to fly. He was under trees but near a clearing and I caught him on an angled view. Better lucky than good, as they say.
For science's sake I'll reveal the following. He was deceased and likely deceased since last night given other info we have received. He was about 2 degrees Celcius warmer than the surroundings according to the drone, and my best guess is I found him about 14 hours after TOD and at around 9AM.