It would take ten such arrows to put that dragon in any serious peril.
I'm wondering why Danaerys didn't bring all three of the dragons? And...why the hell did she pilot that beast STRAIGHT at the arrow launcher? That was suicide. Not much of a pilot, tactically speaking.
“tactically speaking”
Now that they are aware of ‘The Scorpion’ weapon, they can plan accordingly how best to safely deploy the dragons. I wonder though how necessary this knowledge will be? Was this the bulk of the Lannister army? And if so, The Unsullied should be able to simply stroll into Kings Landing...
I think that bringing in all three dragons would result in a lot of friendly fire. Unridden dragons are great for destroying ships when the only ships around are enemy ships, but unless they are directed, they will just go to town.
I think that this sets up a total isolation for Ciersi at the end of the season... Jaime and Dickon get house arrest in Casterly Rock and High Garden, respectively. The Dothrakis relieve the siege at High Garden, and maybe the extra dragons destroy Eurion’s ships. Edmuir takes over the Twins and marches from the Northwest... I would like to see Bronn take some shock troops to the dungeons to rescue his beloved from Dorne (and her mom) and have the Dornish army coming from the South. Maybe he also rescues the Septa and she starts an internal protest. Cool beans!