Type Two seat sportplane
Engine 1 Stahlwerk Mark M-5
Dimensions Length 6,05 m , height 2,15 m ,  span 9,40 m  , wing area  25 m2 ,
Weights Empty 320 kg , loaded 580 kg , max. take off weight  
Performance Max.. speed  , cruising speed  , range , endurance  , service ceiling   , climb
The most obscure aircraft of Stahlwerk Mark AG was the light multi-purpose MT.1 (from Mark-Tiefdecker). It was a modification of the MS.IIb biplane. Not even the serial number of the car has been preserved.

The only record found about the MT.1 in the archive is a report of a crash that occurred on May 13, 1925 at an airfield near Breslau (now Wroclaw, Poland), during which the chief pilot of Stahlwerk Mark, Hans Georg von der Marwitz, died. Marwitz, who scored 21 victories during the First World War.

Two Stahlwerk Mark MT.1 aircraft were entered for the Deutschen Rundflug competition, which took place from May 31 to June 9, but the tragic incident with der Marwitz influenced the company's decision. Co-pilot Josef Siegel, who was supposed to fly one of the MT.1s, switched to the ME.1b.

Type Werk.Nr Registration History