File:330-PS-326 (USN 707777) (19946208701).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (2,310 × 2,807 pixels, file size: 517 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description 330-PS-326 (USN 707777): Navy’s New Eight-Blades Contra-Rotating Aircraft Propeller’s. One of the largest aircraft propellers ever developed for the Navy in an experimental eight-bladed contra-rotating installation for use with gas turbine engines of over 6,000 horse-power. The huge propeller was built for the Navy by the Hamilton Standard Division, United Aircraft Corporation at their East Hartford, Connecticut, plant and has successfully completed 400 hours of testing. Further testing will be conducted by the Navy. The blades are 14 feet in diameter on this new propeller. Testing has been carried out with the propeller installed on a conventional piston engine, the Pratt and Whitney Wasp Major. This was the first eight-blade dual-rotation propeller developed for the Navy, and is part of the Navy’s continuing development program of turbo-propeller engines in the country. The new propeller consists of two four-bladed propellers one placed in front of the other on a dual shaft and geared to turn in opposition direction. This eliminates the “torque” effect of propeller driven aircraft. Photograph released June 14, 1950. (7/22/2015).
Date
Source 330-PS-326 (USN 707777)
Author National Museum of the U.S. Navy

Licensing

[edit]
This image was originally posted to Flickr by Photograph Curator at https://flickr.com/photos/127906254@N06/19946208701 (archive). It was reviewed on 10 July 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the Public Domain Mark.

10 July 2018

Public domain
This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current04:52, 10 July 2018Thumbnail for version as of 04:52, 10 July 20182,310 × 2,807 (517 KB)Hiàn (alt) (talk | contribs)Transferred from Flickr via #flickr2commons

The following page uses this file:

Metadata