EVA'S
an Eva is a
thing created by man in mans' own image. In more detail though, an Eva
is a copy of the first Angel found in Antarctica; Adam, however,
modifications had to be made to allow NERV to control it. Unlike the
Angels, an Eva doesn't possess an S2 engine, therefore energy is
supplied via an umbilical cable. Should this cable become severed, an
Eva can operate on an internal battery for no more than five minutes due
to the current limitations in battery power, after which the Eva should
supposedly cease to function.
Model: Prototype
Designated number: 00
First seen: Episode 06
Unit-0 is the first Eva to be constructed, and is piloted by Rei Ayanami who is the first child. In order for the prototype to be a viable option for close combat against Angels, NERV upgrade the Eva shortly after the eighth Angel is destroyed. Unit 0 has also been known to run amok on a couple of occasions. It was initially thought to have been caused by mental instability from within the pilot, however, it is later determined that the instability originated from within the actual Eva. It's highly likely that Unit 0's core was in fact built from the soul of Rei Ayanami, Unit 0 was partly destroyed in a battle so NERV rebuilt it and gave it a new look.
Model:
Test type
Designated number: 01
First seen: Episode 01
Unit-01 has undoubtedly seen far more action in its time than any of the other Evas under NERV's control, it is also unpredictable. On several occasions Unit 01 has moved without energy being supplied to it. Though it is because of this Eva's rogue behavior that many of the Angels were actually successfully destroyed and its pilot, Shinji Ikari; the third child, still alive to tell the tale. Also, it would be safe to say that Yui Ikari's soul exists within Unit 1's core..
Model:
Production
number: 02
First seen: Episode 08
Unit-02 is the first Eva production model to be constructed, and is therefore a template for future Eva's, at least it was deemed to be the case at the time of its construction. Unit 02 is piloted by Asuka Langley Soryu; the second child, and is the only Eva to have experienced extreme conditions such as engaging an Angel in aquatic combat.
Model: Production
Designated number: 03
First seen: Episode 18
Unit-03's
existence is a very short one. It's first test activation at Matsushiro
goes horribly wrong as the thirteenth Angel within the Eva's body
awakens and takes control of the Eva, helplessly trapping its pilot,
Toji Suzuhara; the forth child, inside its entry plug. NERV classify the
Eva as the thirteenth Angel and engage it with Unit 01 under the control
of its dummy plug. Although the pilot is fortunate enough to survive
Unit 01's attack, Unit 03 is completely dismembered and rendered useless
after its bloody confrontation with the frenzied Eva.
Model: Experimental S2
Designated number: 04
First seen: Episode 17
Unit-04's existence is even shorter than Unit 03's. Unit 04 is equipped with NERV's New experimental S2 engine, which is similar to that of an Angel's. It works by converting matter into energy with no losses, but its initial activation at the second branch of NERV in the Nevada desert, America, goes wrong. As a result NERV-02 is wiped off the map along with Unit 04, its newly installed experimental S2 engine and thousands of people. An explanation for the vast loss of life is not given.
Model: Mass production
Designated numbers: 05-13
First seen: End of Evangelion
Not too much is known about the other Evas, other than the fact that they were built at seven different locations around the world, and that all these Evas include working S2 engines. They are also known to be capable of extremely rapid regeneration much like that displayed with Unit 01. As well as this, Units 05-13 are relentless in their attacks, none are piloted by a human, instead each is piloted by a dummy plug and so morality isn't an issue for them when engaged in combat. And as if this weren't enough, Units 05-13 are all flight capable, in fact they could all be very well likened to vultures.