Large transport and bombing biplanes often needed still more bays to provide sufficient strength. These are often referred to as multi-bay biplanes. A small number of biplanes, such as the Zeppelin-Lindau D.I have no interplane struts and are referred to as being strutless.Grosz 1998, p. 0.
Large transport and bombing biplanes often needed still more bays to provide sufficient strength These are often referred to as multi-bay biplanes A small number of biplanes such as the Zeppelin-Lindau DI have no interplane struts and are referred to as being strutlessGrosz 1998 p 0