Flying with larger & significantly upgraded hypersonic grid fins. Single piece cast & cut titanium. Can take reentry heat with no shielding. https://t.co/SmyCCQRt2F— Elon Musk (@elonmusk) June 25, 2017
Flying with larger & significantly upgraded hypersonic grid fins. Single piece cast & cut titanium. Can take reentry heat with no shielding. https://t.co/SmyCCQRt2F