Document DErZOkXx7kDjaXMagndb9Q5B

Page 2899 1 Q You would use this device then from grid to 2 grid? 3 A Yes. 4 Q Okay. Is there anything else about the 5 picture that you would like to explain to the jury 6 before you take your seat? 7 A At this stage -- well, one thing. To make 8 sure that all of the air that comes to the brake went 9 through the exhaust duct, we introduced smoke upstream 10 of the brake and observed where the smoke went, and we 11 adjusted our flow parameters for the exhaust and the 12 supply site to be sure that all of the smoke that gets 13 to the brake goes out the exhaust duct, so we have a 14 best chance of catching all of the wear debris and one 15 of the devices we used for measuring that is called a 16 hot wire anemometer, and that is the device sitting 17 over there. 18 Q Thank you. Just go back to the stand. 19 (Whereupon, the witness resumed the witness 20 stand.) i 21 BU MR. WILLIAMS: