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The North American X-15 is often regarded as one of the most important aircraft in aviation history for several reasons:

Experimental Nature: The X-15 was an experimental aircraft designed to push the boundaries of flight and explore the limits of manned hypersonic flight. It was specifically developed to gather data and advance aeronautical and astronautical research.

Speed and Altitude Records: The X-15 set numerous speed and altitude records during its flight test program. It became the fastest manned aircraft ever built, reaching speeds over Mach 6 (approximately 4,520 miles per hour) and altitudes of up to 354,200 feet (67 miles). These achievements greatly contributed to our understanding of high-speed and high-altitude flight.

Aerospace Research: The X-15 was crucial for conducting research in various areas of aerospace engineering, such as aerodynamics, materials, propulsion systems, and human factors. The data collected from the X-15 flights provided valuable insights into the challenges of space travel, which helped in the development of future spacecraft and launch vehicles.

Pilot Training: The X-15 program played a vital role in training a generation of astronauts. Many of the X-15 pilots went on to become NASA astronauts and made significant contributions to the United States' space program. The experience gained from flying the X-15 helped prepare these pilots for the demanding conditions of spaceflight.

Technological Advancements: The X-15 incorporated numerous technological advancements for its time, such as the use of an ablative heat shield to withstand the intense heat generated during reentry. These innovations paved the way for the development of spacecraft like the Space Shuttle and other vehicles that would follow.

Overall, the X-15's groundbreaking achievements, its role in advancing aerospace research, and its influence on the future of manned spaceflight make it one of the most important aircraft in history.

• 100% combed and ring-spun cotton (Heather colors contain polyester)
• Fabric weight: 4.2 oz/yd² (142 g/m²)
• Pre-shrunk fabric
• Side-seamed construction
• Shoulder-to-shoulder taping
• Blank product sourced from Guatemala, Nicaragua, Mexico, Honduras, or the US

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Size guide

  LENGTH (inches) WIDTH (inches) CHEST (inches)
XS 27 16 ½ 31-34
S 28 18 34-37
M 29 20 38-41
L 30 22 42-45
XL 31 24 46-49
2XL 32 26 50-53
3XL 33 28 54-57
4XL 34 30 58-61
5XL 35 31 62-65
  LENGTH (cm) WIDTH (cm) CHEST (cm)
XS 68.6 42 78.7-86.4
S 71.1 45.7 86.4-94
M 73.7 50.8 96.5-104.1
L 76.2 55.9 106.7-114.3
XL 78.7 61 116.8-124.5
2XL 81.3 66 127-134.6
3XL 83.8 71.1 137.2-144.8
4XL 86.4 76.2 147.3-155
5XL 89 78.7 157.5-165