| Mb.IV | |
|---|---|
 Maybach HS Lu on display at the Polish Aviation Museum | |
| Type | water-cooled straight-six piston engine |
| National origin | Germany |
| Manufacturer | Maybach |
The Maybach Mb.IV, originally designated Maybach HS, (only related to the Mb IVa by layout and size), was a straight-six piston engine of 200–240 hp (150–180 kW) output, originally developed for use in airships. It was also used for large aircraft such as the Zeppelin-Lindau Rs.I seaplane.
Variants of the original HS engine included the Maybach HS D, Maybach HS K and Maybach HS Lu. The latter engine was used in the Zeppelin-type and Schütte-Lanz Type E airships.
