21. One of its three main engines has a new fuel turbopump that is making its launch debut. 22. A static firing test on the pad would expose the sustainer turbopump to the failure mode in question. 23. Compared to a turbopump the pistonless pump is a much simpler design and has less stringent design tolerances. 24. Composed of twin motors with separate combustion chambers and turbopump machinery, it is considered a single unit. 25. But in a hybrid, the fuel is solid and cannot be fed to a turbopump 's engine. 26. The turbopump was used to transport fuel and oxidizer liquids under pressure to the rocket engine of the V2. 27. During orbital injection, the GATV engine experienced a drop in turbopump speed lasting about 2.5 seconds. 28. Technology lessons from the Low Cost Pintle Engine project were used in the development of the SpaceX FASTRAC turbopump . 29. One of the three main engines has a new high-pressure fuel turbopump that is built without any welds. 30. The high-pressure fuel turbopump in each engine was built without welds, making it more reliable and safer.
