4 ms·

Perhaps the version of the upper stage they're launching is not equipped with whatever the relevant control surface hardware (ailerons / grid fins / etc..) is?

• wmf 4y ago
  It has everything.
  • bryanlarsen 4y ago
    But they're obsolete. S24 uses hydraulic actuators, S27 uses electric actuators.
    • mjevans 4y ago
      Mass distribution consistency is important. They can't just lop them off and change the design ad hock.
      • macintux 4y ago
        Just fyi, “ad hoc”. Latin.
        • deleted 4y ago
          [deleted]