at the
Duxford Imperial War Museum The
Belfast truss is a cross between Town's lattice truss and the
bowstring truss. It was developed in Ireland as a wide-span shallow rise roof truss for industrial structures. McTear & Co of
Belfast, Ireland began fabricating these trusses in wood starting around 1866. By 1899, spans of had been achieved, and in the 20th century, shipyards and airplane hangars demanded ever greater clear spans. ==Wood lattice truss bridges==