US Air Force | BV-107/II. In 1962, the US Air Force ordered twelve XH-49A (based on the BV-107/II) for Texas Tower support and Artic Search And Rescue (SAR) duties. The airframes were assigned USAF serials 62-12473/12484. In early 1963, the USAF visited the Vertol factory in Morton, PA and determined that Vertol could not meet the rigid delivery requirements, and so cancelled the contract with no airframes having entered produciton. The USAF ordered Sikorsky S-61Rs (CH-3C) instead.  |