224 



H. M. JOHNSON AND FRANKLIN C. PASCHAL 



16695 m Lt.. Pilot. Cul 



i^Jitf >.JL 



Otntrvrn : Lt. lUACl Pk) 



June 6, 1919. No. 6895, first lieutenant, pilot, twenty-six, single, chemical 

 engineer. 



Three hundred hours flying overseas, 100. over lines, 1 crash, night landing. 

 20,000 feet for 1 hours; 15 combats, 3 credits. 



Physical condition good. Run was preceded by 13 minutes' rebreathing dur- 

 ing which the oxygen was replenished as consumed. 



Slight initial impairment at 13th minute. Deterioration began at 11 per cent 

 oxygen, but compensation took the form of increased effort. This effort became 

 greater as time passed, but muscular incoordination and large number of errors 

 appeared at the end of the last series. He was taken off the machine at the 

 end of the series as he was becoming inefficient so rapidly that he could probably 

 not have started the next series. 



