Prepare - 83 JT30 /JT30 All Terrain Operator’s Manual
Plan Bore Path
CMW
AT pipe
Minimum depth (D) Entry pitch (A) Setback (B) Depth to begin steering (S)
3 ft 5 in (1.0 m) 18% / 10.2° 31 ft 11 in (9.7 m) 1 ft 1 in (0.33 m)
4 ft 1 in (1.2 m) 20% / 11.3° 34 ft 7 in (10.5 m) 1 ft 3 in (0.38 m)
4 ft 9 in (1.5 m) 22% / 12.4° 37 ft 4 in (11.4 m) 1 ft 4 in (0.41 m)
5 ft 6 in (1.7 m) 24% / 13.5° 40 ft 0 in (12.2 m) 1 ft 6 in (0.46 m)
6 ft 3 in (1.9 m) 26% / 14.6° 42 ft 7 in (13.0 m) 1 ft 7 in (0.48 m)
7 ft 1 in (2.2 m) 28% / 15.6° 45 ft 2 in (13.8 m) 1 ft 8 in (0.51 m)
7 ft 11 in (2.4 m) 30% / 16.7° 47 ft 8 in (14.5 m) 1 ft 10 in (0.56 m)
IMPORTANT: Numbers in table based on 145’ (44.2 m) minimum bend radius, beacon housing and
1/3 of first drill pipe (L, totaling 6’ 4” [1.9 m]) in the ground before steering.
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