File:X-3 on Lakebed (7605910990).jpg
Original file (3,000 × 2,352 pixels, file size: 3.8 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionX-3 on Lakebed (7605910990).jpg |
English: In this NACA High-Speed Flight Station photograph, the X-3 Stiletto is seen on the lakebed at Edwards Air Force Base. |
||
Date | |||
Source |
NASA photo page
|
||
Author | NACA/NASA |
Licensing
[edit]Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
Warnings:
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 17:42, 29 April 2016 | 3,000 × 2,352 (3.8 MB) | Ariadacapo (talk | contribs) | Cropped bottom border, converted to B&W | |
17:41, 29 April 2016 | 3,000 × 2,670 (4.21 MB) | Ariadacapo (talk | contribs) | Higher-resolution from NASA page | ||
07:21, 25 December 2015 | 1,536 × 1,367 (434 KB) | PlanetUser (talk | contribs) | Transferred from Flickr via Flickr2Commons |
You cannot overwrite this file.
File usage on Commons
The following 9 pages use this file:
- X-3 Stiletto
- User:One cookie/Favorites
- Commons:WikiProject Aviation/recent uploads/2015 December 25
- Commons:WikiProject Aviation/recent uploads/2016 April 29
- Commons:WikiProject Aviation/recent uploads/2016 September 15
- File:Douglas X-3 NASA E-2412.jpg (file redirect)
- File:X-3 on Lakebed.jpg (file redirect)
- File:X-3 on Lakebed (7605910990) (2).jpg (file redirect)
File usage on other wikis
The following other wikis use this file:
- Usage on fr.wikipedia.org
- Usage on no.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
JPEG file comment | NASA Dryden Flight Research Center Photo Collection
http://www.dfrc.nasa.gov/gallery/photo/index.html NASA Photo: E-2412 Date: 1956 Photo by: NACA/NASA X-3 on Lakebed In this NACA High-Speed Flight Station photograph, the X-3 Stiletto is seen on the lakebed at Edwards Air Force Base. The X-3 Stiletto was a single-place jet aircraft with a slender fuselage and a long tapered nose, manufactured by the Douglas Aircraft Company. The X-3's primary mission was to investigate the design features of an aircraft suitable for sustained supersonic speeds, which included the first use of titanium in major airframe components. It was delivered to the NACA High-Speed Flight Station in August of 1954 after some Douglas and Air Force evaluation testing. The Douglas X-3, known as the Stiletto, was built to investigate the design of an aircraft suitable for sustained supersonic speeds. The X-3 was intended for sustained flight research above Mach 2, but was hampered by use of underpowered Westinghouse J34 turbojet engines which could not power the aircraft past Mach 1 in level flight. This aircraft was built by the Douglas Aircraft Company. <p> The X-3 had, perhaps, the most highly refined supersonic airframe of its day as well as other important advances including one of the first machined structures. It included the first use of titanium in major airframe components. Its long fuselage gave the Stiletto a high-fineness ratio and a low-aspect ratio (the ratio of the wing?s span to its chord; in other words, it was short and stubby). Despite this refined configuration, the maximum speed it attained was Mach 1.21, during a dive. The general consensus was that the aircraft was sluggish and extremely underpowered. The X-3 also demonstrated coupling instability during abrupt rolling maneuvers, which could cause it to go wildly out of control, as happened on a flight on October 27, 1954, with National Advisory Committee for Aeronautics (NACA) pilot Joe Walker at the controls. <p> The principle contribution of the X-3 was its data on inertial coupling (roll divergence)--a tendency to diverge from the intended flight path. The aircraft also shed its small tires routinely, leading to a revision of the design criteria for tires used on high-speed aircraft. This aircraft flew 20 times between 1954 and 1956 at the NACA High-Speed Flight Station (predecessor of NASA?s Dryden Flight Research Center, Edwards, California). Joe Walker was the pilot for all 20 of these missions. The X-3?s first flight was in October 1952 with Douglas test pilot Bill Bridgeman in the cockpit. The Air Force completed a brief evaluation of the airplane in 1953 and 1954 before turning it over to the NACA in the summer of 1954. |
---|