In 1959, Sikorsky Aircraft began testing of a proof-of-concept heavy lift helicopter called the S-60. Initial tests proved successful and the U.S. Navy and Army showed interest in the concept. Sikorsky immediately began development of a more powerful version of the helicopter powered by two turbo-shaft engines. Designated the S-64 by Sikorsky and the H-54A by the U.S. Army, it made its first flight in May 1962. The U.S. Army named the helicopter Tarhe, but most people call them Skycranes. The CH-54 left military service in the early 1990s

The gate guard of the Pima Air and Space Museum, actually you walking beneath it if you are entering the museum grounds, what a nice welcome!

Delivered to the US Army in March 1968 as 68-18437. Loaned to the museum in January 1993.

It stands so tall, there is not much obstructing the view behind it.