Main Boom Details

Mainsail (main)
Control loop
Outhaul
Bowsie
Line
Bowsie
Deck fairlead
Screw eye
Screw eye
"O" ring
Snap clip

bowsie [R06]: A simple device with three holes used for tensioning lines on a model yacht.

control loop [R10]: A loop of line or wire placed around a mast or boom to help maintain sail shape.

deck fairlead [R12]: A fitting that allows a sheet to come through the deck and change direction as needed. 

line [R32]: Used on model yachts for things such as sheets and topping lifts.

mainsail (main) [R35]: The largest sail on a sailboat, crucial for propulsion, is attached to the mast and controlled by the main sheet.

O” ring (solid) [R43]: A connector that, with the snap clip joins the sheet lines together, one coming through the deck fairlead and the other coming from the jib or main boom. 

outhaul [R44]: A control line that attaches the clew to the boom and tensions the foot of the sail.

screw eye [R48]: Hardware used in various places on model yachts for sheet attachment on a boom and a topping lift.

snap clip [R54]: A connector that joins to the “O” ring to connect the sheet lines together, one coming through the deck fairlead and the other coming from the jib or main boom