Page 76 - Tower Catalog
P. 76

Towers
Heavy Duty Self-Suppor ng Towers
Mfr Sec on Nominal Spread Dimension • Industry’s most efficient and preferred structures Number • Standard parts arranged to create a unique structure
• Legs are tubular with angle braces at the bo om and solid legs and braces in the top sec ons
Upper Lower
1w 1' - 2" 1' - 2"
2w 1' - 2" 1' - 6"
3wn 1' - 6" 1' - 10"
4n 1' - 10" 2' - 2"
5n 2' - 2" 2' - 6"
6n 1' - 6" 4' - 6-1/4"
7n 4' - 6-1/4" 6' - 6-3/4"
8n 6' - 6-3/4" 8' - 6-3/4"
9nh 8' - 6-3/4" 10' - 6-3/4"
10nh 10' - 6-3/4" 12' - 7-1/4"
11n 12' - 7-1/4" 14' - 7-7/8"
12nh 14' - 7-7/8" 16' - 8-3/8"
13nh 16' - 8-3/8" 18' - 8-3/8"
14nh 18' - 8-3/8" 20' - 9-3/8"
15nh 20' - 9-3/8" 22' - 9-3/8"
16nh 22' - 9-3/8" 24' - 9-3/8"
• Used in a variety of applica ons, from PCS structures and Broadband to Security and Sports Ligh ng and more
• Hot-dip galvanized, inside and out for corrosion protec on
Self-Suppor ng | 40' - 190' | 90 mph (no ice)
Mfr
Tower Height ( .)
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
Tower Assembly Num- ber
SS040D90
SS050D90
SS060D90
SS070D90
SS080D90
SS090D90
SS100D90
SS110D90
SS120D90
SS130D90
SS140D90
SS150D90
SS160D90
SS170D90
SS180D90
SS190D90
Allowable Projected Area
Tower Top Rounds (Flats)
16.7 (10)
16.7 (10)
14.2 (8.5)
14.2 (8.5)
12.5 (7.5)
12.5 (7.5)
10 (6)
10 (6)
8.3 (5)
8.3 (5)
6.7 (4)
6.7 (4)
5.8 (3.5)
5.8 (3.5)
5 (3)
5 (3)
30' Below Top Rounds (Flats)
20 (12)
20 (12)
17.5 (10.5)
17.5 (10.5)
15.8 (9.5)
15.8 (9.5)
13.3 (8)
13.3 (8)
11.7 (7)
11.7 (7)
10 (6)
10 (6)
8.3 (5)
8.3 (5)
7.5 (4.5)
7.5 (4.5)
Top Sec on
3WN
3WNB
3WN
3WNB
3WN
3WNB
3WN
3WNB
3WN
3WNB
3WN
3WNB
3WN
3WNB
3WN
3WNB
Part Number
4N
5N
5N
6N
6N
7N
7N
8N
8N
9NH
9NH
10NH
10NH
11N
11N
12NH
SB4
SB5
SB6
5/8X42AB
5/8X42AB
5/8X42AB
5/8X42AB
5/8X42AB
5/8X42AB
5/8X42AB
5/8X42AB
5/8X42AB
3/4X48AB
3/4X48AB
7/8X60AB
7/8X60AB
General Notes:
1. Tower designs are in accordance with approved na onal
standard ANSI/EIA-222-F-1996 (no ice)
2. Equivalent flat-plate antenna areas based on EIA RS-222-C,
must not exceed the areas shown for flat member antennas 3. Tower designs assume allowable projected areas are
symmetrically placed on the tower
4. Designs assume one 7/8 line to top and two 7/8 lines to 30
feet below top, one per face
5. Do not install or dismantle tower within falling distance of
electrical and/or telephone lines
6. Tower erec on and dismantling must be done by qualified
and experienced personnel
7. Install warning plate (P/N: ACWS) in a highly visible loca on 8. All antenna installa ons must be grounded in accordance
with local and na onal codes
9. All towers are provided with a (P/N: ITT) tapered top
Base Sec on
A-Bolts 12 Req.
Face Spread
2' - 2
2' - 6
2' - 6
4' - 6 1/4
4' - 6 1/4
6' - 6 3/4
6' - 6 3/4
8' - 6 3/4
8' - 6 3/4
10' - 6 3/4
10' - 6 3/4
12' - 7 1/4
12' - 7 1/4
14' - 7 7/8
14' - 7 7/8
16' - 8 3/8
Down Load (lbs)
20,800
27,900
33,700
27,100
31,300
31,100
33,100
36,000
38,100
42,900
44,500
50,900
52,700
60,900
62,900
73,000
Base Reac ons
Upli  (lbs)
19,800
26,600
32,400
25,500
29,600
29,100
30,900
33,400
35,400
39,700
41,200
47,000
48,700
56,000
57,900
66,900
Shear (lbs)
1,700
1950
1,930
2,760
2,820
3,850
3,830
5,070
5,100
6,520
6,540
8,280
8,330
10,570
10,650
13,060
OTM ( . lbs)
38,100
58,900
71,400
103,100
119,300
169,900
180,600
255,500
270,300
375,800
389,800
532,100
550,900
739,500
763,700
1,007,000
76
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Rohn
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