Film

Helicopter demonstration

Polygoon-Profilti (producent)

At the Europeana

Clips are not offered for this film: a public-domain mark that nothing bears out (no year, or a year no US term has left).

Not offered: its uploader or archive marks it public domain, and nothing the site holds bears that out (its record gives no year, or a year from 1978 on, which no US term has left), so where it is free is not known. Unclear is not offered. Open it at the Europeana.

About

Demonstration of construction and internal construction of a helicopter. Various shots of the helicopter frame.

Human-made No record of this work says a model made it. What this means.