The Messerschmitt Me 109T was the projected carrier version of the Me 109E model. About 70 planes of this version were build by Fieseler, several modifications had to be made to adapt these single seat fighters for the use on  aircraft carriers:

• T-0: 10 Me 109E-3 modified by Fieseler in 1939/40, Span enhanced to 11.06 meters, arrestor hook and   catapult mountings. Those aircraft were planed to be used on the Graf Zeppelin and were later used by I/JG 77. 
• T-1: like T-0, 60 build by Fieseler and delivered to JG 5. Since the carrier was not completed, all planes were modified to T-2 
• T-2: All equipment for carrier operations removed.

The first 10 aircraft were of the pre production Series (T-0), followed by 60 production aircraft of the T-1 series. When construction of the Graf Zeppelin was halted in 1940, further development of the Me 109 T was stopped, too. In late 1940 Fiesler was ordered to complete the 60 T-1 models but to remove all all carrier-equipment. The result were 60 aircraft of the now called T-2 series which were able to operate from short land airstrips.

The first aircraft were delivered in the beginning of 1941 and were used in Norway until the summer of 1942. The surviving aircraft were then transferred to the Helgoland, a small island in the North Sea, where they were used for point defense up to late 1944.