The Ground Test Motor (GTM), powered by a suitable hydraulic cart, is used to back drive the Ram Air Turbine (RAT) during ground checkout. The ground tests are to be performed in accordance with the airframer’s AMM and RAT manufacturer’s instructions. 

Aircraft Applications: Embraer E170 (ERJ-170), Embraer E175 (ERJ-175), Embraer E175-E2, Embraer E190 (ERJ-190)   Embraer E190-E2, Embraer E195 (ERJ-195), Embraer E195-E2, Embraer Lineage 1000, Sukhoi SJ100, ARJ and MRJ

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