pdf https://cdn.1j1ju.com/medias/b8/e5/0f-air-mail-rulebook.pdf
1925, the US Congress passes the new Air Mail Act also known as the Kelly Act. The Postmaster General will now contract commercial airline companies to carry mail. Step into the shoes of an aviation tycoon and manage one of these companies competing for the contracts to establish and operate the first air mail service.
1,81 Mo - En Anglais