Airplane
FIG. 1 is a side elevational view of an airplane depicting our new design; 
     FIG. 2 is a front elevational view thereof; 
     FIG. 3 is a top plan view thereof; and 
     FIG. 4 is a bottom perspective view thereof. 
     The broken line disclosure of landing gears is for illustration purposes only and does not form part of the claimed design.