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mean downwind reference height = 1.53 m, mean lower sonic height above reference = 1.663+0.055 053 m (total mean height = 3.25 m)
mean upper sonic height = 2.664+0.055 053 m (total mean height = 4.25 m)
3/17/09, TWH: Why did I use 5.5 cm rather than 5 cm as the height of the sonic above its boom?
12/14/09, TWH answer: To account for thickness of saddle on sonic boom; perhaps 5.3 cm would be better
Upwind sonic heights
Position | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
|---|---|---|---|---|---|---|---|---|---|
reference mark height (m agl) | 1.48 | 1.55 | 1.53 | 1.52 | 1.55 | 1.54 | 1.575 | 1.57 | 1.49 |
top of sonic boom (m above ref) | 2.17 | 2.17 | 2.165 | 2.17 | 2.17 | 2.17 | 2.17 | 2.17 | 2.17 |
mean upwind reference height = 1.534 m; mean sonic height above ref= 2.169+0.05 053 m (total mean height = 3.75 76 m)
From 12:17 until 12:55, July 1, Gordon and Tom lowered the upwind sonics by 0.5 m to match the height of the lower downwind array.
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Reference height agl = 1.52 m
Sonics are 5.5 3 cm above top of boom; SHT inlets are 37 cm below top of boom
3/17/09, TWH: Why did I use 5.5 cm rather than 5 cm as the height of the sonic above its boom?
Note that often we could not place sonic and SHT boom mounts at the ideal heights
nominal height | 1.5 | 3 | 4 | 5.5 | 7 | 8 |
|---|---|---|---|---|---|---|
top of sonic boom above ref (m) | -0.02 | 1.725 | 2.665 | 3.955 | 5.505 | 6.475 |
sonic height agl (+ 1.575 573 m) | 1.55 | 3.30 | 4.24 | 5.53 | 7.08 | 8.05 |
top of SHT boom above ref (m) | 0.355 | 2.105 | 3.08 | 4.315 | 5.855 | 6.855 |
TRH height agl (+1.15 m) | 1.505 | 3.255 | 4.23 | 5.465 | 7.005 | 8.005 |