Prepare - 98 JT40/JT40 All Terrain Operator’s Manual
Plan Bore Path
JT40 HIWS1 Pipe
Minimum depth (D) Entry pitch (A) Setback (B) Depth to begin steering (S)
4’ 4” (1.32 m) 18% / 10.0° 37’ 3” (11.35 m) 2’ 2” (0.66 m)
5’ 4” (1.63 m) 21% / 11.6° 41’ 2” (12.55 m) 2’ 6” (0.76 m)
6’ 8” (2.03 m) 23% / 13.2° 45’ 1” (13.74 m) 2’ 9” (0.84 m)
8’ 0”(2.44 m) 26% / 14.8° 49’ 0” (14.94 m) 3’ 1” (0.94 m)
9’ 4” (2.84 m) 29% / 16.4° 52’ 10” (16.10 m) 3’ 5” (1.04 m)
10’ 11” (3.33 m) 32% / 18.0° 56’ 7” (17.25 m) 3’ 9” (1.14 m)
IMPORTANT: Numbers in table based on 145’ (44.2 m) minimum bend radius and beacon housing,
EZ-Connect connector, transition sub, and 1/3 of first drill pipe (L, totaling 12’ 1” [3.68 m]) in the ground
before steering.
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