Insert the ELT into the mounting tray at an Angle so that the locking ears at the end opposite the direction-of-flight arrow fit into the mounting tray locking slot.

By adding some feathers at the back, an arrow could be prevented from turning sideways during flight.

Swans on their autumnal migratory flight—the celestial flutter of wings, the silver arrow of a flock splitting the sky—evoke poetic melancholy. Shadows lengthen. Days shorten. Another year closes in.