| BNSF Dash 9-44CW 4694 (along with 4610; 1024 and 5511 and AAR instrument car 112) leads the Z-LACWSP1-05 eastbound as it ascends Cajon Pass on November 6; 2006.; BNSF is conducting tests on six roundtrips between Los Angeles and Chicago.; The anemometer on the front of the 4694 measures wind resistance. |