1 guy duckbill anchor kits, Guy duckbill anchor kits, 7. mechanical drawing of guy hook and case – Campbell Scientific CM110, CM115, CM120 Tripod Installation User Manual

Page 20: Figure 6-7)

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Tripod Installation Manual Models CM110, CM115, CM120

FIGURE 6-7. Mechanical drawing of guy hook and case Guy Duckbill Anchor Kits

Duckbill anchors are recommended for areas subjected to higher winds. They

allow the guy wires to be anchored at points beyond the feet, thereby

increasing the rating of the tripod for higher winds.

Two duckbill anchor kits are offered for these lightweight tripods. The 19282

Guy Duckbill Standard Anchor Kit is for standard soils, and the 25699 Guy

Duckbill Heavy Duty Kit is for aggressive soils. Aggressive soils have:

Resistivity less than 3000 ohm-cm

pH less than 5

Chloride greater than 1000 ppm

Sulfate greater than 500 ppm

Poor aeration

The 19282 and 25699 have their own drive bar. The 19282 also has three

duckbill anchors with a cable attached to each of them. At the end of the cable

is a loop for connecting the guy wires. The 25699 has a threaded rod attached

to each of the three duckbill anchors instead of the cable. At the end of the

threaded rod is a metal ring for connecting the guy wires.

The duckbill anchors are driven to the ground at a 60-degree guy angle as

shown in FIGURE 6-8. Locate the anchors on a 7.5-ft radius for the CM115,

or a 10-ft radius for the CM120 as shown in FIGURE 6-9. Specifications for

sustained wind speed and gust tolerance are given based on guy angle, and the

ability of the anchors to hold at least 400 lbf.

Duckbill anchors are not suitable for rocky or sandy soils; UTEYE

anchors should be considered for these types of soils.


Dead End

Load End



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