Abstract
In this report the author continues to describe a theory of Strapped Down mechanizations of Free Surface inertial navigation. The paper deals with the theories of the types IN (RSD) and I (2 SD) mechanizations, and this completes a description of the main points of the whole theory of SD mechanization. As a supplementary item, a new method of calculating geographic coordinates is proposed for the types NS (SD) and I (1 SD) mechanizations. This new method is considered to be more orthodox than formerly derscribed trial method. The next step to this serial work, may, the author thinks, will be a theoretical comparison between the FS mechanizations and the ordinary mechanizations (e.g. north slaved local level), and those among the FS mechanizations. However, it is anticipated that these studies will take a lot of time and efforts, the author wishes to report the results of them some other day, if possible.
