After extensive use of the Liberty DH-4 in the main air battles of the second half of 1917 the U.S. armed forces began a gradual upgrading in favor of French two-seaters. In the middle of 1918 the Liberty DH-4 was used less and less and machines were transferred to reconnaissance units as well as to newly formed aviation units of the U.S. Navy. While there was growing aversion among the American pilots in Europe towards the "Flaming Coffins", designers in the U.S. tried to solve the problems with the fuel system. Out of this came the DH-4B this version having a changed fuel tank location and an improved engine fuel system. However, it was not sent to the war in Europe. With the end of WWI, in America as well as in Europe, a spirit of pacifism began to prevail, and Congress did not allocate any funds for new developments. A large number of Liberty DH-4's which were returned from Europe to the U.S. were rebuilt as DH-4B's, and the aircraft continued to be used by the U.S. Army into the 1920's. Many DH-4's fell into private ownership. Apart from barnstorming in the "air circuses", they were destined to play one more very important role: the DH-4 began to be used as a mailplane and a light transport. In the vast geographical area of the country it was a highly important innovation, instrumental in the development of commercial aviation in the future.
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Accessibility Statement
At This website, we are committed to providing an accessible digital experience for all users, regardless of ability. We believe that ensuring our website is usable by people with various disabilities—whether temporary or permanent—is essential to creating an inclusive digital environment.
To help us achieve and maintain high standards of accessibility, we utilize Max Access, an advanced AI-driven accessibility solution powered by Ability, Inc., a leader in digital accessibility. This tool not only identifies accessibility issues but also provides real-time, automated remediation for a wide range of compliance issues based on the Web Content Accessibility Guidelines (WCAG).
How Max Access Enhances Accessibility
Max Access continuously monitors and scans our website to identify potential barriers, automatically fixing many common issues such as:
Color contrast errors
Keyboard navigability issues
Missing or mislabeled images and interactive elements
Beyond automated fixes, Max Access provides a detailed report outlining areas that require manual attention to ensure a higher level of accessibility compliance. This combination of automation and human oversight allows us to maintain and enhance accessibility over time.
Our Commitment to Continuous Improvement
We understand that accessibility is an ongoing process, not a one-time solution. To stay in compliance, Max Access:
Scans our website regularly
to identify new issues as they arise.
Provides regularly updated remediation
for many accessibility concerns, ensuring that users can interact with key website functionalities.
Delivers detailed reports
for manual remediation, enabling us to address more complex issues that require human attention or remediation.
Feedback & Accessibility Support
While we work diligently to ensure our website is accessible, automated tools like Max Access have limitations and may not catch every issue. We welcome feedback from our users to help us improve. If you experience any difficulty accessing content on our website or have suggestions for how we can improve its accessibility, please contact us.
Our team will review and address your concerns promptly.
Web Technology and Standards
Our website relies on the following technologies to ensure compatibility with both modern web browsers and assistive tools like screen readers:
HTML
WAI-ARIA
CSS
JavaScript
These technologies allow us to meet and maintain compliance with the
WCAG 2.1
standards at
Levels A and AA.
We strive to provide a website that is perceivable, operable, understandable, and robust for all users. Thank you for visiting our website and helping us ensure a more inclusive digital world.