The magazine was altered to allow a single shell in reserve. Her single shell is named the 'Equanimity'. The condenser adopted was of the under slung single shell, single pass axial type. For brevis types, a single shell per pair is often representative. The word "monocoque" is a French term for "single shell" or (of boats) "single hull". Helcionellids have a single shell, in which the peak forms a distinctive curve. There will also be 12 active Ku-band transponders, using a single shell super-elliptical deployable reflector.