Wherever there is no turn an bank indicator, it is advisable to install a bank indicator. This simple instrument is particularly useful in training aircraft.
Three types are available:
Size I has exactly the same dimensions as the electric turn and bank indicator installed in the small standard housing. Thus, it can be removed and replaced by a turn an bank indicator at a later date, without the need for any alterations to the instrument panel.
Size II is recommended where little space is available.
Size III ist fitted in the small standard housing.