A new panel is to be installed just inside the entrance way to the Battle Command Headquarters. Like most major airbases, Ibsley was equipped with a Battle Command Headquarters that could serve as a point to co-ordinate defence in the event that the airfield was overrun by ground forces.
This is one of a series of interpretation panels. You can find out about the rest here
You can find out more about Ibsley Airfield in this overview article, which has links to other articles relating to Ibsley Airfield.