A. 1. Explore all available options: Make sure to check all sections of the game for any hidden or unlockable aircraft types. 2. Participate in events: Engage in special events that may introduce new aircraft types. 3. Provide feedback: While not contacting developers, consider discussing this issue in community forums to see if others have found solutions.

B. 4. Experiment with upgrades: Sometimes, upgrading existing aircraft can provide a different gameplay experience.