Boeing 100th Anniversary: First Commercial Airplane Milestone
# The Boeing Model 40: A Workhorse That Shaped Early Aviation
The story of aviation is filled with iconic aircraft, but few embody the spirit of early commercial flight quite like the Boeing Model 40. This versatile biplane wasn’t just a machine; it was a crucial step in connecting communities and delivering mail, laying the groundwork for the robust air transport systems we rely on today. Let’s dive into the captivating journey of this remarkable aircraft.## The genesis of a Mail Carrier
the early 20th century was a time of rapid innovation in aviation, and the U.S. Postal service was eager to leverage this new technology for mail delivery. In 1925, they issued a request for proposals for a new mail plane, a contract that would prove pivotal for the burgeoning aviation industry.### A Competitive Bid and a Bold Move
Several manufacturers vied for this lucrative contract, but it was boeing that ultimately emerged victorious. Thanks to the WASP engine, which was approximately 100 kilograms lighter than the competing Liberty engine, Boeing presented the lowest offer by a significant margin.
However, this low bid sparked protests from competitors. The postal service, seeking assurance, demanded a substantial guarantee of $500,000 to award the contract. In a bold and decisive move, William Boeing personally presented this bonus, securing the contract for his company and demonstrating his unwavering belief in the Model 40.

## The Model 40 takes Flight
with
