<page_title> STAR21 </page_title> <section_title> Formation </section_title> <table> <cell> 952-1 <col_header> 1 </col_header> <row_header> Numbering </row_header> </cell> <cell> 952-2 <col_header> 2 </col_header> <row_header> Numbering </row_header> </cell> <cell> 952-3 <col_header> 3 </col_header> <row_header> Numbering </row_header> </cell> <cell> 952-4 <col_header> 4 </col_header> <row_header> Numbering </row_header> </cell> <cell> 953-1 <col_header> 5 </col_header> <row_header> Numbering </row_header> </cell> <cell> 953-2 <col_header> 6 </col_header> <row_header> Numbering </row_header> </cell> <cell> 953-3 <col_header> 7 </col_header> <row_header> Numbering </row_header> </cell> <cell> 953-4 <col_header> 8 </col_header> <row_header> Numbering </row_header> </cell> <cell> 953-5 <col_header> 9 </col_header> <row_header> Numbering </row_header> </cell> </table>
The STAR21 consisted of nine cars arranged in two distinct "halves", with the Class 952 half-set consisting of four vehicles, and the Class 953 half-set consisting of five vehicles.