| Year | January 1938 |
| Weapon Type | Heavy Gun |
| Origin & Designer | Germany/Rheinmetall |
| Numbers Produced | 101 |
| Crew | 12 |
| Calibre | 149.1mm |
| Elevation | -2° to +43° |
| Traverse | 360° |
| Breech | Horizontal Block |
| Recoil | Hydropneumatic |
| Gun Sight | [@gun_sight] |
| Gun Mount | [@gun_mounts] |
| Carriage | Box Trail |
| Trailers | [@trailers] |
| Gun Shield | [@gun_shield] |
| Armoured Plate | [@armoured_plate] |
| Barrel Length | 6.432mm (L/55) |
| Overall Length | 8.60m |
| Width | [@width] |
| Height | [@height] |
| Weight | Weight in Traction: 18.600 kg (Two Loads) Weight in Action: 12.460 kg |
| Round Weight | 43.5 kg |
| Muzzle Velocity | 865 m/s |
| Feed | [@feed] |
| Magazine Capacity | [@magazine_capacity] |
| Practical Rate of Fire | [@practical_rate_of_fire] |
| Rate of Fire | 2 r.p.m. |
| Maximum Rate of Fire | [@maximum_rate_of_fire] |
| Maximum Ceiling | [@maximum_ceiling] |
| Maximum Ground Range | [@maximum_ground_range] |
| Maximum Range | 24.500m |
| Armour Penetration | [@armour_penetration] |
| Traction | Motorised (Sd.Kfz 8) |
| Variants | [@variants] |
| Notes | When the German army decided to modernise its artillery arm, one of its aims was to up-date its long range guns. Many of their 150mm K16 guns had been handed over to Belgium as war reparations, so a new weapon was built which had excellent range and accuracy. The 150 K18 was heavy and needed to be transported in two loads, once assembled it came with a turntable allowed for 360 degrees of traverse. Only 100 were built and because of the transport and assemble problems many were used in static positions in coastal fortifications. |