The ornamental design for a short lightsinglehelicopter, as shown and described.
FIG. 1 is a top, right front perspective view of a short light single helicopter showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The structural features depicted by broken lines have been shown for the purpose of illustrating portions of the short light single helicopter that form no part of the claimed design.