Helicopter Sikorsky HRS-2 Serial 55-105 Register N865RL 129023 used by US Marine Corps USMC. Built 1952. Aircraft history and location Aircraft History 129023 US Marine Corps 1952-02-22Sikorsky S-55 c/n 55-105, ff:? del USMC as HRS-2, 129023, 22Feb52 wfu & sold Calif. Helicopters Parts, Inc. Sikorsky HRS-3 9nov55 N865RL - 1978-06-11 ex 129023 w/o 11jun78 Send Updates Use APP to upload photo @ (optional) When Now? / / Send