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<br />UNIVERSAL MANUFACTURING CORPORATION
<br />12J57 East B Mlle Rd. Warren. Michigan 4BOB9 13131 774-4140
<br />Lloyd T. Cheney
<br />Detroit, Michigan
<br />Professional Engineer
<br />Michigan Reg. No., 7184
<br />At your request I have carried out additional computations to
<br />determine the effective areas of antennas which towers of pounds per
<br />square foot in loading zones A, B, and C res-pectively with a factor
<br />of safety of 1.0 (material stressed to the yield strength). The
<br />results are summarized below:
<br />30 Foot Tower
<br />A
<br />B
<br />C
<br />11,11,14
<br />4.42
<br />2.51
<br />1.37
<br />11,14,18
<br />9.29
<br />6.43
<br />4.72
<br />14,18,16
<br />11.91
<br />8.o1
<br />5.66
<br />14,18,22
<br />21.08
<br />15.22
<br />11.70
<br />18,22,22
<br />22.85
<br />15.913
<br />11.85
<br />40 Foot Tower
<br />11,11,14,14
<br />1.42
<br />-----
<br />-----
<br />11,14,14,18
<br />4.38
<br />2.48
<br />1.33
<br />14,14,18,18
<br />7.01
<br />4.08
<br />2.32
<br />il,14,18,22
<br />9.29
<br />6.43
<br />4.72
<br />14,18,18,22
<br />11.91
<br />8.01
<br />5.66
<br />14,18,22,22
<br />15.21
<br />10.06
<br />6.96
<br />14,18,22,26
<br />21.08
<br />15.22
<br />11.70
<br />18,22,22,26
<br />22.05
<br />15.69
<br />11.27
<br />50 Foot Tower
<br />11,11,14,14,18
<br />1.42
<br />_____
<br />- ___--
<br />11914,14,18,18
<br />3.69
<br />1.34
<br />11,11,14,18,22
<br />4.42
<br />2.51
<br />1.37
<br />11,14,18,18,22
<br />7.07
<br />4.14
<br />2.39
<br />11,14,18,22,22
<br />9.29
<br />6.43
<br />4.72
<br />14,18,22,22,26
<br />15.21
<br />10.06
<br />6.96
<br />14,18,22,26,26
<br />16.37
<br />10.48
<br />6.95
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