c/n B-2 ---- Select Piasecki Model----16H-1 Pathfinder16H-1A Pathfinder IIH-21H-21AH-21BH-21CH-21DH-25A / CH-25A Army MuleHelistatHRP-1HRP-1GHRP-2HUP-1 / UH-25A RetrieverHUP-2 / UH-25B RetrieverHUP-3 / UH-25C RetrieverPV-14 / XHJP-1PV-15PV-17PV-18PV-2PV-3XH-16A TransporterXH-21XHRP-XYH-16A TransporterYH-21--- Other Models ---Helicopter Piasecki H-21B Serial B-2 Register 51-15855 used by US Air Force USAF. Aircraft history and location History Help Us 51-15855 US Air Force 1962AKEDWUSAF H-21B, redesig CH-21B, HH-21B with 6515 OMS Edwards AFB, CA around 1963 6515 OMS UPLOAD PHOTO Mail @ (optional) Date/Place Now? / / Send