Submarine with smoke. I presume as a part of the Royal Navy helicopter display.
Battle of Britain Memorial Flight Lancaster.
Royal Navy Historic Flight Swordfish.
Royal Navy Wessex HU5 XT460. One of 17 Royal Navy Wessex to be at the show! They arrived in one formation, it was extremely impressive.
4 Pitts of the Rothmans aerobatic team.
BBMF Lancaster, no mid upper turret in those days.
Lancaster on the ground.
Sea King XV633.
Red Arrows Vixen break.
Spitfire possibly TE311 ?
Frecce Tricolori with the magnificent Fiat G91. The only problem with this picture is that it appears to be from the 1974 Air Fair. The Red Arrows didn't display as they were delayed by the fuel crisis. The Tricolori made a huge impression in many ways, not least by a stunningly good smoke system.