UH-1 Engine Low RPM sound – Real Recordings Written by SoundFX.studio on October 17, 2021. Posted in UH-1 Huey Iroquois Military Helicopter. Real Recordings – Helicopters UH-1 Huey Iroquois Sound Library The UH-1 Engine Low RPM sound – Real recordings of UH-1 “Huey” Iroquois Military Helicopter. The sound of Low RPM. The unique UH-1 Huey Sound Library includes 14 audio files of UH-1 Huey from external view and from the cockpit. Listen to the UH-1 Huey Iroquois Sound Library entirely Follow us on SoundCloud Previous Next