Jenny Stay Strut Detail

Mast crane
Mast
Wire
Mast tang
Jenny Stay Strut
Sleeve (ferrule)

Jenny stay strut (Jenny strut, stay strut, jumper strut) [R22]: A support structure used on sailboats that helps maintain the tension of the headsail and prevents the mast from bending under sail pressure.

mast [R37]: A tall spar, or arrangement of spars, erected vertically or near-vertically on the median line of a ship or boat.

mast crane [R38]: A device at the top of the mast to which assorted items attach such as the backstay.

mast tang [R42]: A fitting, typically made of metal, that attaches to the mast of a boat to provide an anchor point for rigging like shrouds and stays. 

sleeve (ferrule) [R53]: A connector that gets crimped using a hand tool to join wires.

wire [R66]: Used in various applications on a model yacht for things such as shrouds and backstays.