Gotha G.I - 1915, bomber, engines: 2x Benz Bz III
Gotha G.II - 1916, bomber, engines: 2x Mercedes D IVa
Gotha G.III - 1916, bomber, engines: 2x Mercedes D IVa
Gotha G.IV - 1916, bomber, engines: 2x Mercedes D IVa
Gotha G.V - 1917, bomber, engines: 2x Mercedes D IVa
Gotha G.Va - 1917, bomber, engines: 2x Mercedes D IVa
Gotha G.Vb - 1918, bomber, engines: 2x Mercedes D IVa
Gotha G.VI - 1918, bomber, engines: 2 x Mercedes D IVa, probably the first asymmetric aircraft
Gotha G.VII - 1918, reconnaissance, engines: 2x Mercedes D IVa
Gotha G.VIII - 1918, reconnaissance, engines: 2x Maybach Mb IV, prototype only
Gotha G.IX - 1918, reconnaissance, engines: 2x Maybach Mb IV
Gotha G.X - 1918, reconnaissance, engines: 2x BMW IIIa, it is doubtful if it existed
Gotha G.II - 1916, bomber, engines: 2x Mercedes D IVa
Gotha G.III - 1916, bomber, engines: 2x Mercedes D IVa
Gotha G.IV - 1916, bomber, engines: 2x Mercedes D IVa
Gotha G.V - 1917, bomber, engines: 2x Mercedes D IVa
Gotha G.Va - 1917, bomber, engines: 2x Mercedes D IVa
Gotha G.Vb - 1918, bomber, engines: 2x Mercedes D IVa
Gotha G.VI - 1918, bomber, engines: 2 x Mercedes D IVa, probably the first asymmetric aircraft
Gotha G.VII - 1918, reconnaissance, engines: 2x Mercedes D IVa
Gotha G.VIII - 1918, reconnaissance, engines: 2x Maybach Mb IV, prototype only
Gotha G.IX - 1918, reconnaissance, engines: 2x Maybach Mb IV
Gotha G.X - 1918, reconnaissance, engines: 2x BMW IIIa, it is doubtful if it existed