I was at the back of the parade square on no 98 IOT in support of the graduating Sqn No 97 IOT DEC 86. Apart from the fact that it nearly wiped the parade out it was awesome. A pair of F4 s first passed from East to West. One of the F4 s then turned left towards the airfield and turned through 270 deg and attacked the clock and graduates head on. He then turned left again turning through 270 deg and came from the West dirty and slow. FUll burner and climb away. Avtur smell delicious, hats on the floor, flag poles over and crinkly AVM on Dias. We all believe the Orange to be clean of crap....... Wrong. Gravel hit me in face. Much fun. On my parade NImrod at 500 ft