The success of the Wright brothers, who, on 17 December1903 launched themselves into the air at a height of 37 m (previously, on 14 December, Orville Wright had made an unsuccessful flight at the height of 36 m), ignited the imagination of constructors. The English Channel became the barrier of distance that people strived to overcome at all cost....

What is the origin of the identifiable chequer mark of the Polish Air Force?
It all goes back to Lieutenant Stefan Stec, who painted a sign of a four-field chequer on the fuselages of two planes he navigated. Air Force Commander Lieutenant Colonel Hipolit Ossowski took a fancy to the sign to the point that...