superconic planes

The above seeing image is a sound speed planes which is designed with a twin supersonic engines after the servive of the plane which is displayed in the Astronomical Space museum in united states of america
The above image shows the black bird supersonic plane which is used for the u.s air force in 19th centruy that the plane travel with sound speed above mach 3 which is displayed in the american muesum. The plane is also called as SR-71 which is the model name of the plane.

[click on the images to get the high resolution view of the picture