Ars Technica's Rocket Report: China discovers grid fins, NASA acknowledges Starship program says:
China experiments with grid fins. The launch of a Long March 2C from Xichang last week included a first use of grid fins by China, SpaceNews reports.
and that link in SpaceNews says:
Launch of a Long March 2C from Xichang last week included a first use of grid fins by China to minimize the threat posed by the spent first stage to populated areas downrange.
How do these statements reconcile with all of the photos of grid fins on Long March rockets shown in the following questions? Is this a blunder or are there some subtleties I'm missing here?
- What are these four “waffle-like” structures on top of the Long March 2F just launched?
- Why didn't Saturn V have grid fins? Long March and Soyuz do!
left: from http://www.cctv-america.com/2016/10/14/heavenly-vessel-chinas-shenzhou-11-ready-for-liftoff right: screen captures from the YouTube video Launch of Manned China Mission with Shenzhou 11 to Tiangong-2. Click for full size or visit the linked questions for more details.