Fichier:Zeus site on Kwajalein.jpg

Fichier d’origine (9 341 × 12 009 pixels, taille du fichier : 15,68 Mio, type MIME : image/jpeg)

Ce fichier et sa description proviennent de Wikimedia Commons.

Description

Avertissement Certains navigateurs peuvent avoir des difficultés à afficher cette image à sa résolution complète : elle possède un nombre de pixels singulièrement élevé et peut ne pas se charger correctement ou faire planter votre navigateur. Open large-image-viewer
Description
English: This image shows Kwajalein island during the installation of the US Army's Nike Zeus test site. The photograph is looking to the east, north is to the left.

At the extreme western end of the island, at the bottom of the image, is a square area on the peak of a built-up area nicknamed "Mount Olympus". As Kwajalein is only feet over sea level, there was no way to build a production-type missile silo, so Olympus was built up to provide enough depth. Four launchers were built into Olympus, with assembly and inert storage areas at the foot of the road leading up Olympus. Just to the left of Olympus is a smaller rectangular pad, used to launch Arcas sounding rockets.

Also on the western edge of the island, to the north of Mt. Olympus (left and just a bit up in the image), is a small building on the beach. This was the Battery Control building, which was the heart of the actual firing system. This building supported the Missile Tracking Radars (MTRs) on round concrete pillars on the south side of the building (right). These are not easily visible in this image. A separate radar is visible just to the west (below) of the building, this radar is unidentified but remains in place to this day.

Above the MTR building in the two concentric circles is another radar, the Discrimination Radar (DR, DDR or ZDR depending on source). The circles around it are several concentric metal mesh fences that both blocked the radar's sidelobes from reflecting off the ground, as well as providing protection to staff - the 20 megawatt microwaves were a significant health hazard. A line can be seen running to the right from the building to the edge of the fence, this is a metal tunnel that allows staff to access the radar without being fried.

Just visible outside the ZDR fence line to the upper right are the beginnings of two Target Track Radars (TTR). These do not appear to be complete in this image, which suggests the image is from the construction period in the early 1960s. In Bell documents these are labeled TRR #3 and #4, the location of the presumed #1 and #2 are not mentioned (these may be TTR prototypes in the US).

Further up the image, to the left of the opposite end of the runway, is the Zeus Acquisition Radar (ZAR, or LAR in some sources). Closer to the runway is the transmitter, which is also surrounded by a single metal fence. Although not easily visible in this image, the transmitter antenna was a large triangle that allowed the radar to see in three directions at once, improving scanning times. The receiver is located in the center of the circular grassy plot just to the left of the transmitter. It is not visible in the image, but the entire ground is covered with metal mesh to provide a reflector surface. The rectangular building between the two is a generator plant.

Between the DR/TTR area and ZAR area is a large building with a nearly-flat roof. This was the maintenance and technical operations base.

Kwajalein has been expanded several times since this image was made. A large amount of land was reclaimed at the bottom of this image, extending north-westward past the dark arc-shaped feature in the water, and houses several new radar systems. The curved road running between Mt. Olympus and the MTRs is now located well inland. Another extension was added on the northern tip of the island, extending off-frame in the upper left corner.
Date vers 1961
date QS:P,+1961-00-00T00:00:00Z/9,P1480,Q5727902
/62
Source http://www.williamson-labs.com/kwaja.htm
Auteur US Army

Conditions d’utilisation

Cette œuvre est dans le domaine public car elle a été publiée aux États-Unis entre 1929 et 1977 inclus, sans indication de copyright. À moins que son auteur ne soit mort depuis suffisamment longtemps, elle n'est pas dans le domaine public dans les pays ou régions qui n'appliquent pas la règle du terme le plus court pour les travaux provenant des États-Unis, comme le Canada (cinquante ans pma), la Chine continentale (cinquante ans pma, Hong Kong et Macao exclus), l'Allemagne (soixante-dix ans pma), le Mexique (cent ans pma), la Suisse (soixante-dix ans pma) et d'autres pays signataires d'accord bilatéraux. Voir cette page pour de plus amples explications.

العربية  беларуская (тарашкевіца)  čeština  Deutsch  Ελληνικά  English  español  français  Bahasa Indonesia  italiano  日本語  한국어  македонски  Nederlands  português  русский  sicilianu  slovenščina  ไทย  Tiếng Việt  中文(简体)  中文(繁體)  +/−

Flag of the United States
Flag of the United States

Légendes

Ajoutez en une ligne la description de ce que représente ce fichier

Éléments décrits dans ce fichier

dépeint

image/jpeg

Historique du fichier

Cliquer sur une date et heure pour voir le fichier tel qu'il était à ce moment-là.

Date et heureVignetteDimensionsUtilisateurCommentaire
actuel6 janvier 2015 à 01:54Vignette pour la version du 6 janvier 2015 à 01:549 341 × 12 009 (15,68 Mio)Maury MarkowitzMuch higher quality version, made from the original TIFF.
18 décembre 2014 à 20:18Vignette pour la version du 18 décembre 2014 à 20:18553 × 619 (91 kio)Maury MarkowitzUser created page with UploadWizard

La page suivante utilise ce fichier :

Usage global du fichier

Les autres wikis suivants utilisent ce fichier :

Métadonnées