Needs to better account for the fact that the Remembrance of the Daleks novelisation depicts "the" Special Weapons Dalek as a singular, unique individual, rather than a broad class of Daleks.
The Special Weapons Daleks were heavily-armoured Daleks with enhanced defensive capacities and even greater offensive capacities.
Features and appearance
Unlike a conventional Dalek, a Special Weapons Dalek had no manipulator arm or eyestalk. Instead, it had an enormous energy cannon mounted on the front of the armoured casing in place of the usual small gunstick and several gold squares below the dome in place of the traditional grating section.
A Special Weapons Daleks' firepower was so powerful that one shot completely vapourised two conventional Renegade Daleks, leaving only a pair of burn marks. Their armour was strong enough to deflect conventional Dalek gunstick firepower without suffering any apparent harm.
Initially, Special Weapons Daleks had a conventional grey livery, marred by dark green stains. (COMIC: Emperor of the Daleks!) Later, similarly to the Imperial Daleks, their liveries were white with gold sense globes, but with sections of metallic grey armour covering most of the upper portion with many battle scorches.
Like other Daleks, Special Weapons Daleks were capable of speech, and the gold squares around their domes were shown to light up whenever it spoke, much like the sets of luminosity dischargers seen on the domes of conventional Daleks. (TV: The Magician's Apprentice / The Witch's Familiar)
The enormous power source required for at least one Special Weapons Dalek's weapon resulted in high levels of radiation being released and altering the structure of the Dalek's brain, resulting in insanity. It was only used in extreme situations and was unofficially known among the Daleks as the Abomination. (PROSE: Remembrance of the Daleks)
The Special Weapons Daleks were created at a point after the Battle of Pejorica. In 1854, through a time corridor, an inoperative Special Weapons Dalek landed back in time in a house of Michael Faraday. (AUDIO: The Four Doctors)
While Ace was in Spacefleet fighting in the Second Dalek War, she witnessed a Special Weapons Dalek vapourise a Red Crescent ship full of children. She drilled through its motive units so it couldn't move in an attempt to steal its energy banks. While she did this, it begged her to kill it; Ace listened to its cry until its power ran out. (PROSE: Lucifer Rising)
After detecting the Sixth Doctor on Skaro, the Daleks later known as the Renegades sent a Special Weapons Dalek to exterminate him. Later, the Golden Emperor sent the Special Weapons Dalek to Spiridon to deal with Davros's Daleks there. (COMIC: Emperor of the Daleks!)
Civil War and aftermath
The Imperial Daleks employed a Special Weapons Dalek against the Renegade Daleks during the Shoreditch Incident. It eventually used the Imperial Dalek Shuttle to return to the Imperial Dalek mothership, (TV: Remembrance of the Daleks) which was destroyed by the Hand of Omega shortly thereafter. (PROSE: Dalek: The Astounding Untold History of the Greatest Enemies of the Universe) According to one account, this Dalek was unique and had been designed by Davros after his ascension to the rank of Dalek Emperor, (PROSE: Remembrance of the Daleks)
One account suggested that following this encounter with Davros's forces, the Renegade Daleks also began using a Special Weapons Dalek variant in their campaigns — (PROSE: War of the Daleks) in evident contrast with the accounts according to which the Golden Emperor's Daleks already employed Special Weapons Daleks before the outbreak of the Civil War. (COMIC: Emperor of the Daleks!) At a point when the Dalek Emperor was back in control, a Special Weapons Dalek named Scout Seven was utilised by the Supreme on Kar-Charrat. (AUDIO: The Genocide Machine)
According to other accounts, the Imperial Daleks were the faction left standing at the end of the Civil War; a new Emperor took control of the remains of the Imperial Dalek faction, forming the Restoration Empire. Special Weapons Daleks were outfitted with new, more conventional Black Dalek-type casings, forming a new rank in the revamped hierarchy: the Dalek Executioners. (PROSE: The Restoration Empire)
Later Dalek invasions
Special Weapons Daleks were deployed to Lopra Minor to act as ground troops. Airborne Special Weapons Daleks were later used to breach Lopra Minor's defences and gain access to Project Infinity. (AUDIO: Project Infinity)
Time War and beyond
During the Last Great Time War, the Daleks that fought against the Time Lords on the planet that the Neverwhen was detonated above transformed into Special Weapons Daleks, among numerous other Dalek variants, as a result of the time flux caused by the Neverwhen's detonation. (AUDIO: The Neverwhen)
A Special Weapons Dalek was among the insane Daleks contained in the Dalek Asylum, and was either inactive or catatonic. The planet was eventually obliterated by the Parliament of the Daleks, with the assistance of the Eleventh Doctor and Oswin Oswald, destroying the Special Weapons Dalek along with all the other Daleks in the Asylum. (TV: Asylum of the Daleks)
Another Special Weapons Dalek was among the Daleks who operated on a rebuilt Skaro where Davros, nearing death. lived as he called the Twelfth Doctor to him. (TV: The Magician's Apprentice) It was destroyed, along with the other Daleks, by the rejuvenated Daleks from the sewers. (TV: The Witch’s Familiar)
Behind the scenes
One of a kind?
Whether or not the Special Weapons Dalek in Remembrance of the Daleks is unique, or one of many, is without definitive proof. The novelisation of Remembrance of the Daleks implies the existence of only one Special Weapons Dalek, giving it a personal history and the name "Abomination". In something of a contradiction, Emperor of the Daleks! and Remembrance show a Special Weapons Dalek fighting for the Renegade and Imperial factions respectively. Finally, Fire and Brimstone shows an entire army of Special Weapons Daleks, either disproving the myth or showing the eventual mass production of the type. In the Dalek Survival Guide it is stated that they were mass-produced, and that two other, more intelligent models existed, the Air-borne Dalek and camouflaged Torpedo Dalek. However, this is a non-narrative, so it is not a legitimate source of information on this wiki.
From a production perspective, only one prop was used in the series before 2015. A second, however, was used in The Witch's Familiar, customised to feature a glowing top.
The video game Lego Dimensions features a Special Weapons Dalek during the final boss of the Doctor Who level included with the game. The Dalek attacks the three main cast members while a shrink ray enlarges it.
The mobile game Legacy depicts the Temporal Weapon Dalek as a Time War bronze version of the Special Weapons Dalek. This contradicts the cover of PROSE: Engines of War, which depicts the Temporal Weapons Dalek as being identical to a bronze Dalek drone, but with a distinct weapons platform.
There were originally meant to be two variants of Special Weapons Dalek. However, the second design was scrapped.
According to Sylvester McCoy on the audio commentary for Remembrance of the Daleks, cast and crew used to refer to the Special Weapons Dalek as the "Rambo Dalek" on set. During the same commentary, Sophie Aldred refers to it as a "Punk Dalek". In the non-fiction book A History of the Universe in 100 Objects it is stated that writer Ben Aaronovitch nicknamed the Special Weapons Dalek 'Christina' after an ex-girlfriend.
Special Weapons Daleks would have been featured in the aborted 30th anniversary film The Dark Dimension. Its appearance was released in 2010 in issue 37 on SciFiNow by one of the Visual Effects assistant.
Special Weapons Dalek is one of Dalek enemies used in the Doctor Who: Legacy mobile game.