Flying over the jungle mountains of Borneo with a single engined helicopter the technique, not that it was used, was to go for a river or stream. If it was going to be a noisy arrival then pointing it upstream or uphill stopped it disassembling itself quicker.
You then pulled out a pack of cards and start playing patience. In no time somebody will look over your shoulder and point out that there is a red seven to go on a black eight.
You're saved!