What Iron Man suit can go the highest?

The Iron Man suit that can go the highest in terms of altitude is the Mark 39 (Starboost Armor). This armor was specifically designed for high-altitude and space travel, enabling Tony Stark to operate in outer space and the upper atmosphere. Below are details about this suit and some other notable Iron Man suits capable of reaching impressive altitudes:

1. Mark 39 – Starboost Armor

• Debut: Iron Man #1 (2013)
• Key Features:
  • Space and High-Altitude Travel: The Starboost Armor was designed with the capability to travel in outer space, including extreme altitudes in the Earth's atmosphere. It is equipped with specialized propulsion systems for space and high-altitude maneuvering.
  • Energy Absorption and Repulsion: This suit can absorb and redistribute energy to power its various functions, including its powerful thrusters for high-speed flight.
  • Armor Enhancements for Space: It comes with enhanced life support systems for operating in space, including an advanced atmospheric seal and cooling systems, allowing it to operate in environments with no atmosphere or in the vacuum of space.
  • Thrusters: The suit has highly powerful thrusters capable of propelling Iron Man to great heights—well beyond the Earth's atmosphere.
• Why it's the best for altitude: The Starboost Armor is designed for space, so it is specifically built to withstand and operate in extreme altitudes, from high up in the atmosphere to beyond the Earth's orbit. It’s made for long-duration space missions and to handle extreme conditions found at the edge of space and in orbit, making it the highest-reaching Iron Man suit.

2. Mark 7 – Space Armor

• Debut: Iron Man 3 (2013)

• Key Features:

  • High-Speed Flight and Space Travel: The Mark 7 armor, as part of the Iron Legion, has multiple flight configurations to allow it to travel at high speeds, including in low-orbit and space.
  • Shielded for Space Environments: While not as specifically designed for outer space as the Starboost Armor, the Mark 7 still features some adaptations to survive space travel, including shielding and enhanced life support for space operations.

• Why it's notable: Though not built explicitly for space like the Mark 39, the Mark 7 still reaches impressive altitudes and is capable of high-speed flight, reaching space under certain conditions. It’s often used for fast deployment and is designed to handle a range of environments, including space.

3. Mark 50 – Nano-Tech Armor

• Debut: Avengers: Infinity War (2018)

• Key Features:

  • Nanotechnology: The Mark 50 utilizes advanced nanotech, allowing it to adapt to Tony Stark’s needs rapidly. It can form weapons and shields for defense and attack, and its nanotech-based thrusters provide high-speed flight in various environments, including space.
  • Improved Propulsion: With the advanced propulsion systems and thrusters integrated into the Mark 50, Tony can reach high altitudes and fly into space, particularly when he's chasing or engaging cosmic threats like Thanos.

• Why it's notable: While the Mark 50 is more focused on versatility and battle capabilities, its nanotech propulsion enables it to travel at great speeds and heights. It’s more suited for space combat than pure altitude travel, but it’s still a very capable suit for reaching outer space.

4. Mark 2 – Prototype Armor

• Debut: Iron Man (2008)

• Key Features:

  • High-Speed Flight: The Mark 2 armor, which was the first fully functional flying suit Tony Stark built, is capable of achieving impressive altitudes, but it’s not nearly as advanced or as safe for space as the newer models.
  • Unstable Flight Systems: Although it’s not optimized for space travel, it can still achieve high-altitude flight and enter the Earth's upper atmosphere.

• Why it's notable: The Mark 2 was the prototype for all Iron Man suits that followed, and while it’s not designed for space, its flight capabilities paved the way for more advanced suits like the Mark 39 and Mark 50. However, it's not built to withstand the harsh conditions of outer space.

5. Mark 16 – Nightclub Armor

• Debut: Iron Man 3 (2013)
• Key Features:
  • Stealth and High-Altitude Flight: Though the Mark 16 (Nightclub Armor) is designed more for stealth and high-speed maneuvers in atmospheric conditions, it can still reach extremely high altitudes. However, like many of the other suits, it isn't designed for space.
  • Speed: It is equipped with thrusters for high-speed travel at low-to-high altitudes, which allows it to handle a variety of environments, including flying at the edge of Earth's atmosphere.

Conclusion: Best Iron Man Suit for Reaching the Highest Altitudes

• Best for Space Travel: The Mark 39 – Starboost Armor is the suit that can travel the highest, as it is explicitly designed for space and high-altitude travel, making it capable of reaching outer space and surviving the vacuum of space.

• Best for High-Speed Flight (Including Edge of Space): The Mark 50 – Nano-Tech Armor and the Mark 7 can also reach significant altitudes and travel at high speeds, with the Mark 50 having the advantage of nanotech and enhanced propulsion systems.

In summary, the Mark 39 (Starboost Armor) is the best Iron Man suit for reaching the highest altitudes, designed specifically for space travel and high-altitude operations. However, other suits like the Mark 50 and Mark 7 are also capable of reaching impressive heights, particularly for combat and special missions.