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The Second Stage Series is a series of Mobile Weapons created by ZAFT in the Cosmic Era timeline.

Mobile Suits

Ships and Vehicles


As part of the project, several new technologies were developed to adapt to the restrictions of the Treaty of Junius. One such technology was the Variable Phase Shift armor, a new version of the older Phase Shift armor. This armor is less energy intensive than the old variant and can also change the strength and thus the energy need of the armor. To cope with the fact that nuclear engines on mobile suits were now forbidden, the Deuterion Beam Energy Transfer System was developed, which allows a suit of the Second Stage series to immediately recharge its battery by receiving energy through a deuterion beam from a ship equipped with this system. Another new system created was specifically for the Impulse, the Silhouette Packs are exchangeable backpacks similar to the Earth Alliance' Striker Packs. The other suits of the series on the other hand all have the ability to transform into a secondary mobile armor mode to adapt to certain environments.


After the end of the First Alliance-PLANT War and the restrictions on technology and mobile suits put up by the Treaty of Junius, ZAFT created a new series of prototype mobile suits to cope with this situations. The Second Stage series introduced several new technologies and also resulted in the creation of the Minerva, the first warships of ZAFT built after the war. This ship not only was capable of using the new Deuterion beam transfer technology but was also specifically built to support the Impulse. Two suits of the series also had prototype units which were used to test several features of these suits. These prototype were the XMF-P192P Proto-Chaos and the ZGMF-YX21R Proto-Saviour.

Eventually in CE 73, the five completed suits and the ship were rolled out at the ZAFT space colony Armory One. On October 2 of the same year however, three of the suits were stolen by the Earth Alliance Phantom Pain special forces unit. This also caused an early start of both the Minerva and the Impulse. Shortly thereafter, the Second Alliance-PLANT War started, which eventually saw the destruction of every suit created as part of the Project, except for the Impulse and the Gaia (taken by Terminal).

Cosmic Era technology
Standard technology
Deuterion Beam Energy Transfer System | Lightwave Barrier | Mirage Colloid | Phase Shift armor | Positron Blaster Cannon | Positron Reflector
Mobile Suit technology
DRAGOON system | G Project | METEOR | Second Stage Series | Striker Packs | Voiture Lumiere
Cyclops System | GENESIS | Hyper-Deuterion Engine | Neutron Jammer | Neutron Jammer Canceller | Neutron Stampeder | Nibelung | Requiem
Human enhancements
Carbon Human | Coordinators | Extended humans | Newtypes | SEED factor
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