The World's Largest Public Domain Media Search Engine
12- Foot Free-Flight Tunnel. NASA public domain image colelction.

Similar

12- Foot Free-Flight Tunnel. NASA public domain image colelction.

description

Summary

Description: .12-Foot Free-Flight Tunnel under construction: The free-flight wind tunnel is a steel sphere 60 feet in diameter and can be supplied with air compressed up to two or more atmospheres in which the operators will work. A decompression chamber is provided so that the operators can return gradually to normal atmospheric pressure. The tunnel itself, which is mounted on a steel framework inside the sphere, has a test section diameter of 12 feet and is about 30 feet long. The drive consists of a 600-horsepower electric motor turning a 15-1/2 foot diameter propeller. The whole apparatus is mounted on bearings so that the tunnel can be tilted through a wide range of angles to correspond to the angle of glide of the model airplane...UID: SPD-NIX-EL-2001-0015 3

NASA Photo Collection

We at GetArchive are exploring new methods of image metadata augmentation and verification. Our goal is to make it possible to find images on any topic. In particular, we are trying to verify and fix historic periodization. This collection is made of historic photographs of automobiles that look as if they were taken in the 1940s. The collection is made with aid of a neural image recognition network dealing with the whole image composition rather than with the car model - some cars may be dated incorrectly. Although, while this method is surprisingly good for the purpose of dating and tagging, a certain percentage of images (less than 8%) may not represent automobile, but other vehicle type or visually similar object. Naturally, our next step should be creating numerous datasets for a particular car years&models, but as of September 2022, we found no use to justify the effort.

date_range

Date

1938
create

Source

NASA
copyright

Copyright info

No known copyright restrictions. Read more at https://www.flickr.com/commons/usage/

Explore more

free flight tunnel
free flight tunnel