Learn flag signals and their meanings with interactive quizzes and explanations. Practice Morse code and flag alphabets in multiple languages. Send and receive semaphore signals with visual guides for both sending and receiving.
Plan non-revenue travel by searching for flights and viewing seat availability estimates. Track flight status and receive updates on boarding. Manage travel dates and preferences for standby trips.
Access textbooks and manage classroom distribution
Access digital textbooks with the same layout and page formatting as printed books. Write notes and draw figures. Support for audio tracks and synthetic speech. Create custom bookmarks. Search within the book.
