ref3 is ~1.505m above top of profile's plate.
center of sonic is 0.05m 053m above top of boom
TRH is 0.37m below top of boom, thus top of TRH boom should be 0.42m above top of sonic boom.
...
- 1.55m top sonic boom is -0.027m below ref3
(remaining entries are with respect to top of 1.55m sonic boom)
sonic TRH
1.55 0.000 0.376
3.x 2.140 2.542
4.x 3.352 3.749
5.x 4.286 4.710
7.x 5.582 5.886
8.x 6.508 6.878
...
nominal ht
...
sonic*
...
+1.55m
...
SHT*
...
+1.55m-0.37m
...
1.5m
...
0.0
...
1.55m
...
0.376
...
1.56m
...
3m
...
2.140m
...
3.69m
...
2.542
...
3.72m
...
4m
...
3.352m
...
4.90m
...
3.749
...
4.93m
...
5.5m
...
4.286m
...
5.84m
...
4.170
...
5.35m
...
7m
...
5.582m
...
7.13m
...
5.886
...
...
8m
...
6.508m
...
8.06m
- 6.878
...
...
Note that 7.x TRH of 5.886m is 2.1cm higher than desired and 8.x TRH of 6.787 is 1.1cm higher than
desired. We can't move the 7.x TRH lower due to Rohn internal braces, thus, we'll leave both
of these.
Numbers "AGL":
1.55 1.555 1.511
3.x 3.695 3.677
4.x 4.907 4.884
5.x 5.841 5.845
7.x 7.137 7.021
8.x 8.063 8.013
others 7.002
Tabulating the profile heights:
nominal ht | sonic* | +1.55m | SHT* | +1.55m-0.42m |
---|---|---|---|---|
1.5m | 0.0 | 1.55m | 0.376 | 1.51m |
3m | 2.140m | 3.69m | 2.542 | 3.67m |
4m | 3.352m | 4.90m | 3.749 | 4.88m |
5.5m | 4.286m | 5.84m | 4.710 | 5.84m |
7m | 5.582m | 7.13m | 5.886 | 7.02 |
8m | 6.508m | 8.06m | 6.878 | 8.01 |
- height wrt 1.5m sonic boom