Generation 01 and Generation 04.
This casing was the first Dalek casing to allow autonomous flight for its occupant. Designed in the Seriphia Galaxy, the casing took the Special Weapon casing with its over-sized power plant and enhanced the motive unit to allow the casing to elevate and act as an aerial assault unit. While standard Dalek units required the Trans-solar disc or the heavier Gunbout, occupants of this casing could patrol airspace and space with impunity. The development of this casing helped in the design of the Time War casing utilised by all Daleks of the fifth generation.
For the most part, the casing resembled the Mark Two Special Weapon Casing, maintaining that design’s dome and weapon assembly. The skirt section of the casing extended only three sensor globes deep, giving the casing a total of thirty-nine (39) environment data collectors. The remainder of the base was an over-sized motive unit which enabled the casing to maintain flight. The dome mimicked the standard Travel Machine – with protruding Luminoscity Dischargers and a standard eye-stalk. The casing maintained the over-sized energy-cannon found on the Mark One and Two Special Weapon casings.
Internally, the databank and computer systems remained in the dome section, with the habitation module located in a buffered containment system within the middle of the casing. As with previous Special Weapon casings, this central portion of the casing could rotate through three-hundred and sixty degrees to allow the occupant the maximum potential for death-dealing. The lower half of the casing was occupied by the power plant and the massive motive unit required to elevate the casing and to keep it in flight.
The power plant necessarily produces more output than that of other casings, most of this directed downwards to the motive unit. Around the edges of the motive unit, on the outside of the casing, a series of directional thrusters enabled the casing to manoeuvre in any direction once airborne. This casing saw action during the invasion of Mutter's Spiral from the Seriphia Galaxy.
Dalek Empire 01. The design is conjectural based on the concept that at this stage Daleks could not achieve full flight in their standard casings. This is evidenced by the use of Trans-Solar discs throughout the Dalek Empire series.