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The following table lists the gain and offset , offset, and rms residuals (as a per cent of the pitot speed) from a least-squares fit of the sonic speed as a function of the tunnel (pitot) speed, 

sonic speed = gain x pitot speed + offset

The last column lists the rms residuals of a linear fit of sonic direction as a function of sonic orientation in the wind tunnel.

 

SNDatespd gainspd offsetspd rms dir rms
001948/20/121.04-5 cm/s 3%0.5 deg
006788/15/121.03-4 cm/s 3%0.8 deg
007198/13/121.04-6 cm/s 3%0.9 deg
015288/14/121.03-4 cm/s 3%0.8 deg
016278/16/121.03+4 cm/s 3%0.9 deg
016278/21/121.03-3 cm/s 3%1.1 deg
016318/14/121.03-4 cm/s 

2%

0.8 deg
016608/13/121.03-4 cm/s3%0.8 deg 
a07300038/15/121.03-4 cm/s3%1.9 deg 
y3840038/14/121.030 cm/s2%2.8 deg