One more transport clipart of vector silhouettes – dirigibles (zeppelin, airship). It is a type of aerostat that can be propelled through the air using rudders and propellers. Aerostatic aircraft stay aloft by having a large “envelope” filled with a gas which is less than the surrounding atmosphere. Now days this kind of transport usually used only for tourists.
Vector files can be opened in various graphic programs, for example: Ventua Publisher, Macromedia Freehand, Xara, Corel Draw, PMView, and certainly Any Adobe Software Indesign, Photoshop, Illustrator etc. can be used to open and edit vectors. Adobe Illustrator my certain choice! It’s very elementary to modify any vector file: rotate, resize, replace shapes, recolor, add something new.