finally being scrapped on 18 May 1917. First Flight: 16 May 1916 Length: Diameter: Gas Capacity: Performance: Payload: Engines: 4x Maybach HS-Lu 6-cyl in-line engines: total S.L.15 (Type 'e') Army airship based at Mannheim. No active service. Decommissioned August 1917. First Flight: 4 November 1916 Length: Diameter: Gas Capacity: Performance: Payload: Engines: 4x Maybach HS-Lu 6-cyl in-line engines: total S.L.16 (Type 'e') Intended for the Army, this ship was never officially commissioned and was laid up at Spich. Scrapped August 1917. First Flight:18 January 1917 Length: Diameter: Gas Capacity: Performance: Payload: Engines: 4x Maybach HS-Lu 6-cyl in-line engines: total S.L.17 (Type 'e') Intended for the Army, this ship was never officially commissioned and was laid up at Allenstein. Scrapped August 1917. First Flight: 19 April 1917 Length: Diameter: Gas Capacity: Performance: Payload: Engines: 4x Maybach HS-Lu 6-cyl in-line engines: total S.L.18 (Type 'e') Construction completed at Leipzig base, but ship destroyed by hangar collapse on 8 February 1917. First Flight: N/A Length: Diameter: Gas Capacity: Performance: N/A Payload: Engines: 4x Maybach HS-Lu 6-cyl in-line engines: total S.L.19 (Type 'e') Never built due to lack of space at Leipzig base, due to hangar collapse on 8 February 1917. First Flight: N/A Length: Diameter: Gas Capacity: Performance: N/A Payload: Engines: 4x Maybach HS-Lu 6-cyl in-line engines: total S.L.20 (Type 'f') Navy ship based at Ahlhorn. Burnt in huge hangar explosion and fire with four zeppelin airships on 5 January 1918 after only two missions. First Flight: 9 September 1917 Length: Diameter: Gas Capacity: Performance: Payload: Engines: 5x Maybach HS-Lu 6-cyl in-line engines: total S.L.21 (Type 'f') Intended for Army but never officially commissioned. Based at Zeesen and used for static testing. Decommissioned February 1918. First Flight: 26 November 1917 Length: Diameter: Gas Capacity: Performance: Payload: Engines: 5x Maybach HS-Lu 6-cyl in-line engines: total S.L.22 (Type 'f') Intended for Navy but refused acceptance on grounds of insufficient payload. Based at Gegen and scrapped June 1920. First Flight: 5 June 1918 Length: Diameter: Gas Capacity: Performance: Payload: Engines: 5x Maybach HS-Lu 6-cyl in-line engines: total S.L.23 Never commissioned. First Schütte-Lanz ship with tubular aluminum frame. May have been complete at war's end but no further details are known. First Flight: N/A Length: Diameter: Gas Capacity: Performance: Payload: Engines: 8x Maybach HS-Lu 6-cyl in-line engines: total S.L.24 Never commissioned. Second Schütte-Lanz ship with tubular aluminium frame. May have been completed after war, but no further