      
  hx  rx     :

h = (rx + 1,63) / 1,5

:
                                                                                  	                                          
                                                                
h <= 150 

   h0   ,                            h0 = 0.85h	                             h0 = 0.92h
   r0   ,                      r0 = 1.1-0.002h)h                          ro = 1.5h
   r   hx  , 	   rx = (1.1 - 0.002h)(h - hx/0.85)	     rx = 1.5(h - hx/0.92)
