# SKI JUMP II

Department of Defense PIN 24040 SKI JUMP II TESTING AND IMPROVING TECHNIQUES FOR LANDING HEAVY AIRCRAFT ON THE ARCTIC PACK ICE, INVESTIGATING ICE ISLANDS AND SEA ICE CONDITIONS AND JOINT OCEANOGRAPHIC RESEARCH.

- Kind: Educational
- Year: 1953
- By: Department of Defense
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/gov.dod.dimoc.24040)
- Licence or status: [CC0 1.0](http://creativecommons.org/publicdomain/zero/1.0/) (as the archive states it)
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

Not offered: its uploader marks it public domain, and the US Copyright Office's records do not settle that it is (a record that may be another film's, a film first published abroad, a year when renewal was automatic, or a country they do not name). Unclear is not offered.