Full Builders Dockyard Model of Sister Tugs FLYING SWIFT and FLYING LINNET - Ferguson Brothers, Port Glasgow - Vallejo Maritime Gallery. Modeled in 1/4 in. scale, 29 inches long and in outstanding condition, this rare model has recently had all fittings replated in gold, silver or copper. Displayed in her original glass and mahogany case, this is a striking piece of the model craft full of fine detail throughout.