Like the B-17, the B-24 is equipped with a low pressure oxygen
system. Location of the cylinders and distribution of the lines,
however, is entirely different. The oxygen system varies somewhat in
the different model ships and in individual ships. In the B-24 D
(beginning with Serial No. 42-40218) to the B-24 H, however, the system
is essentially as described below. Some of the minor variations will be
noted, including changes to the supply for the nose positions in late T
models. FAMILIARIZE YOURSELF WITH THE OXYGEN SYSTEM IN YOUR OWN SHIP.