Engine 1 seems to have suffered a “rapid unscheduled dis-assembly” — i.e., it blew up. The other 8 engines burned longer than planned to put Dragon into orbit. The anomaly occurred at 1 minute and 20 seconds into the flight.
I had to link this for the “rapid unscheduled dis-assembly” bit alone. This happened at close to max Q, or maximum dynamic pressure, though the call of max Q was six seconds after the engine explosion. The D version of the Merlin 1 engine addresses this problem by adding throttle capability from 70% to 100%. The vacuum version of the Merlin 1C already has throttle capability.
This makes me glad for robust designs.
Zoomed in and slowed down view of the engine destruction at the link, normal launch video here:
So does this count as ‘splodey?