Shoreham Air Show plane crash: Pilot was too low, official report reveals
Air Accidents Investigation Branch publishes interim report into crash that killed 11, showing loop-the-loop began at 200ft when pilot Andy Hill was licensed to perform such manoeuvres at 500ft and above

Source : Click Me

Leaves more questions than answers.

These aircraft normally pull a maximum of about 4G in airshows, the airframe can comfortably handle 7G, that gives quite a wide margin to correct his mistake in turning the top of the loop early.

However, further to the above this was a T7 which was normally fitted with Avon Mk122 engines which I think were the lowest power engines fitted to hunters.

I believe there must have been a degree of blackout, there were fields in the vicinity and he didn't appear to make any attempt to steer, with visual impairment from a blackout he would see the A27 but might not have been able to see traffic on the road.

AAIB bulletin HERE

Too low ..... Stating the bleeding obvious