Yes it does. What makes you say it doesn't?

Because anyone can tell from the pictures you posted of the damn thing. Your
main just comes down and rolls into the boom on a smooth curve. A sail with a
shelf foot looks like a loose foot when eased but it is connected to the boom
by a light weight piece of sailcloth. That light weight piece of cloth forms a
"shelf" when the outhaul is eased and it looks like a horizontal flat shelf.
When the outhaul is pulled tight the "shelf" disapears under the stretched
foot.
S/V Express 30 "Ringmaster"
Trains are a winter sport