California, San Francisco City and County, San Francisco
There are two markers mounted on opposite sides of the flagpole base in the Marina Green
This plaque marks the site of the
Marina Air Field
The first terminus of the
United States Post Office Dept.
Trans-Continental
Air Mail Service
The first scheduled mail-plane
landed here
September, 9, 1920
Presented by the Air Mail Pioneers Inc.
At this site on August 30, 1944
Stanley Hiller, Jr.
Pioneer helicopter designer, made the first sustained and successful public flight of a helicopter in the western United States. His single-place rotor-craft, the XH-44 was the first helicopter designed and built in the West, and America’s first successful co-axial helicopter.
Presented by
San Francisco International Airport
Flight Festival Committee
Auspices of
San Francisco Public Utilities Commission
San Francisco Junior Chamber of Commerce
San Francisco Chamber of Commerce
August 1954
(Air & Space • Communications) Includes location, directions, 3 photos, GPS coordinates, map.
![](http://www.hmdb.org/Photos2/259/Photo259881.jpg)
This plaque marks the site of the
Marina Air Field
The first terminus of the
United States Post Office Dept.
Trans-Continental
Air Mail Service
The first scheduled mail-plane
landed here
September, 9, 1920
Presented by the Air Mail Pioneers Inc.
At this site on August 30, 1944
Stanley Hiller, Jr.
Pioneer helicopter designer, made the first sustained and successful public flight of a helicopter in the western United States. His single-place rotor-craft, the XH-44 was the first helicopter designed and built in the West, and America’s first successful co-axial helicopter.
Presented by
San Francisco International Airport
Flight Festival Committee
Auspices of
San Francisco Public Utilities Commission
San Francisco Junior Chamber of Commerce
San Francisco Chamber of Commerce
August 1954
(Air & Space • Communications) Includes location, directions, 3 photos, GPS coordinates, map.