A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Tony Oz
Date: 2020 Feb 5, 09:13 -0800
- No, I do not have the BAC-58 at all.
- Yes, TBA-57 is also presented in the MT-2000 but in less compact form.
I can understand why they prefer a method allowing to do an SR from any position (D.R. or A.P.) which is possible with the TBA-57 rather than to mess with pre-calculated altitudes and azimuths for selected LHAs and LATs (which essentially is the BAC-58).
(A note for non-Russian readers: the TBA stands for "Таблицы Высот и Азимутов", i.e. the Tables of Altitudes and Azimuths; the BAC stands for "Высоты и Азимуты Светил", i.e. the Altitudes and Azimuths of Luminaries)
As I can understand, the BAC-58 is the same as either HO-249 or HO-229, and the TBA is (is it?) similar to HO-214, right?