How many modes does the CTIS have?

The Central Tire Inflation System (CTIS) is designed to optimize vehicle performance and safety by adjusting tire pressure based on terrain conditions. The correct answer indicates that CTIS has four modes. Each mode serves a specific purpose:

1. Highway Mode: This mode is typically used when driving on paved surfaces, allowing for maximum tire pressure to ensure better fuel efficiency and handling.

2. Off-Road Mode: When transitioning to more rugged terrain, this mode reduces tire pressure to improve traction and stability, thus enhancing the vehicle's capabilities on uneven surfaces.

3. Cross-Country Mode: This mode further adjusts tire pressure for varied off-road conditions, ensuring that the vehicle can navigate through different types of terrain effectively.

4. Combat Mode: Specifically designed for use in combat operations, this mode allows for minimal tire pressure adjustment to provide improved mobility in challenging environments.

By having these four distinct modes, CTIS enhances the versatility and effectiveness of Army vehicles across various operational environments, addressing different terrain needs effectively.