Get Blue Impulse T2
Go to the bay map and get the Blue Impulse logo. You will find it under the bridge.

Get F-105 Drone
Fly at 50,000 feet during training.

Get F-86 Fighter
Clock up one hour of time in training mode.

Get A-10
Complete all of the ground training objectives in the training mode of play.

Get Blue Impulse F-86 Fighter
Go to the island map and get the Blue Impulse logo during free flight.