I am a resident on site inside parafield airport, and was sitting on my balcony watching the spitfire doing its dirty slow pass, it was extremely slow but I have not took too much notice about it, in fact I took a picture in of that spitfire just before it came back for the slow pass..walked back into my house to grab something when it was doing its approach and heard the noise from the crowd, at first I thought it was a cheer or something but now apparently it wasnt as I thought.
The condition today, in fact for the pass few days has been quite windy, and I am quite used to a gusty base and final approach due to nearby terrain. It looks like the pilot had under estimated the gusty condition. Anyway RIP.