3.1.1. Fluid transport equipment Currently, the lead time for large gas compressors, greater than 10 MW, is easily 6 to 18 months. This is due to the complexity of their manufacture, attributed to tight design tolerances and delays in obtaining case castings. Furthermore, CO 2 compressors currently have small production volumes, and experience similarly long lead times. Considering that bottlenecks exist with current demand, compressors require particular attention in meeting future demand. Although the manufacturing process is well understood, advancements from the aerospace industry seen in turbine manufacture such as composite and metal 3D printing may trickle down, expediting compressor manufacture.