A-12 Avenger 2                Hold [Shift] and type xaxdqx at the Hangar. 

FB-22 Strike Raptor           Hold [Shift] and type dxdxdq at the Hangar. 

F-18 HARV                     Hold [Shift] and type aqaqax at the Hangar.



Unlockable Planes
     To unlock these planes, go to the hanger and enter them.

(Hold Shift) D, X, D, X, D, Q:     Unlocks A-12 Avenger II

(Hold Shift) A, Q, A, Q, A, X:     Unlocks F-18 HARV

(Hold Shift) X, A, X, D, Q, X:     Unlocks F-22B Strike Raptor


Unlockable Aircraft
     Successfully complete the indicated task to unlock 
the corresponding aircraft.

A-10A Thunderbolt II:    Complete mission 16

A-6A Intruder:           Reach level 07

A-7B Corsair II:         Reach level 03

AV-8B Harrier II:        Reach level 08

EA-6B Prowler:           Reach level 13

EF-111A RAVEN:           Reach level 04

Eurofighter Typhoon:     Complete mission 14

F-117 Nighthawk:         Complete mission 13

F-14A Tomcat:            Complete Mission 08

F-14B Bombcat:           Complete mission 12

F-14D SuperTomcat:       Reach level 24

F-15 Active:             Complete mission 04

F-15C Eagle:             Complete mission 10

F-15E StrikeEagle:       Reach level 25

F-16A Fighting Falcon:   Complete Mission 09