This was the intended MAINPORT TARA (IMO 9659347). Anyone know the actual date of the disastrous launch (the earliest appearance of the video I can find is 5 Aug 2014).
She has not, as yet, been completed, and it seems cancelled by Mainport.
This is what was suppposed to happen - launch of sister MAINPORT PINE on 5 Aug 2013:
https://www.youtube.com/watch?v=S6AikL-szBQIronically the video captures the comment "very stable".