JT30 /JT30 All Terrain Operator’s Manual Prepare - 84
Plan Bore Path
CMW
AT Cobble pipe
Minimum depth (D) Entry pitch (A) Setback (B) Depth to begin steering (S)
4 ft 5 in (1.3 m) 18% / 10.2° 43 ft 5 in (13.2 m) 1 ft 1 in (0.33 m)
5 ft 4 in (1.6 m) 20% / 11.3° 47 ft 4 in (14.4 m) 1 ft 3 in (0.38 m)
6 ft 3 in (1.9 m) 22% / 12.4° 51 ft 3 in (15.6 m) 1 ft 4 in (0.41 m)
7 ft 3 in (2.2 m) 24% / 13.5° 55 ft 2 in (16.8 m) 1 ft 6 in (0.46 m)
8 ft 4 in (2.5 m) 26% / 14.6° 58 ft 11 in (18.0 m) 1 ft 7 in (0.48 m)
9 ft 6 in (2.9 m) 28% / 15.6° 62 ft 8 in (19.1 m) 1 ft 8 in (0.51 m)
10 ft 8 in (3.3 m) 30% / 16.7° 66 ft 5 in (20.2 m) 1 ft 10 in (0.56 m)
IMPORTANT: Numbers in table based on 210’ (53 m) minimum bend radius, beacon housing, EZ-
Connect, connector, transition sub, and 1/3 of first drill pipe (L, totaling 6’ 4” [2.6 m]) in the ground before
steering.
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