@ sloppyjoe (and others who have the same problem, there are several!)
yolk is the yellow bit in the middle of a bird's egg, OK?
a YOKE is two rings, joined together, forming a figure8. Usually elliptical,each loop passes over the head of a beast and the centre commonly is attached to a drawbar in order that the two beasts can share the pulling of a load....they are said to be YOKED together.
the designation YOKE is applied to the "handlebar" used to control an aircraft as an alternative to a "stick", probably because of it's shape being reminiscent of the yoke used to harness two horses / bullocks / oxen etc.
No more yolks in the Cockpit, please, unless they are crew-food!