
The image is a photograph of a sign at an airport. The sign is white with black text and is attached to a yellow pole. The text on the sign explains the base flight performance of an aircraft laboratory. 

On the top right corner of the sign, there is an image of an airplane flying in the sky. Below the image, there are three smaller images of the aircraft. The first image is of a Boeing 747-400, the second is of the Boeing 777-300ER, and the third is of an Airbus A380-800ER.

The text below the images explains that the flying laboratory is constructed on the basis of the passenger plane and is equipped with the necessary equipment to operate the aircraft, such as the engines, wings, and engines. The image also mentions that the aircraft is capable of performing high-speed flight speeds of up to 700 km/h.
