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Engineer Sapper Knots
U.S. Army Engineer Sapper Knots
19
Engineering
Professional
01/31/2011

Additional Engineering Flashcards

 


 

Cards

Term

SQUARE KNOT

Class 1, Joining Knot

Definition

Purpose: The square knot is used to join the ends of two ropes of equal diameter together while under tension.

 

Checkpoints

1) Two interlocking bights

2) The running ends are on opposite ends of the knot and on the same side of the standing end.

3) Minimum 4" pigtails after the overhand safeties.

Term

FIGURE OF EIGHT BEND

Class 1, Joining Knot

Definition

Purpose: To join ends of two ropes of equal or similar diameter no more than 5 mm difference in diameter.

 

Checkpoints

1) Two ropes running side by side in the shape of a figure wight.

2) The running ends are on opposite ends of the know and on opposite sides of the standing ends.

3) Minimum 4" pigtails and no twists.

Term

BOWLINE

Class 2, Anchor Knot

Definition

Purpose: To tie the end of a rope around an anchor point when you have alternating tension, or to form a fixed loop in a rope.

 

Checkpoints

1) A bight around the standing end of the rope held in place by a loop

2) The running end of the bight is on the inside of the fixed loop.

3) Minimum 4" pigtails after the overhand safeties.

Term

CLOVE HITCH End of the Rope

Class 2, Anchor Knot

Definition

Purpose: To anchor the end of the rope under tension

Checkpoints

1) Two turns around the anchor with the diagonal locking bar in the opposite direction of the pull.

2) The running and standing ends exit the middle of the knot.

3) Safety the running end to the standing end with the two half hitches

4) Minimum of 4" pigtails.

Term

ROUND TURN, TWO HALF HITCHES

Class 2, Anchor Knot

Definition

Purpose: Used to tie the end of a rope to an anchor. This knot must have constant tension.

 

Checkpoints

1) A complete turn around the anchor point with no crosses.

2) Two half hitches in place by a locking bar.

3) Minimum 4" pigtails.

Term

MIDDLE OF THE ROPE CLOVE HITCH

Class 3, Middle of the Rope

Definition

Purpose: To form an anchor in the middle of the rope.

 

Checkpoints

1) Two turns around the anchor with a diagonal locking bar.

2) The running and standing ends exit the center of the knot.

Term

DOUBLE FIGURE OF EIGHT KNOT

Class 3, Middle of the Rope

Definition

Purpose: Used to form a fixed loop in a rope.

Checkpoints

1) Two ropes running side by side in the shape of a figure eight.

2) The knot forms a fixed loop.

3) Maintain a minimum of 4" pigtails and no twists.

 

Term

MIDDLE OF THE ROPE PRUSIK

Class 3, Middle of the Rope Knot

Definition

Purpose: To attach a movable rope to a fixed rope.

Checkpoints:

1) Two round turns with a perpendicular locking bar.

2) With a double figure eight stabilizing the knot no more than 6" away from the prussic.

3) The ropes between the prussic and the double figure eight have equal tensions.

Term

FIGURE EIGHT RETRACE

Class 4, Special Knot

Definition

Purpose: To tie the climbing rope around a fixed object or harness

Checkpoints

1) Two ropes running side by side in the shape of a figure eight

2) The knot will form a fixed loop around a fixed object or harness.

3) Minimum 4" pigtails and no twists.

Term

THREE LOOP BOWLINE

Class 4, Special Knot

Definition

Purpose: To form three fixed loops in a rope. Normally used as a anchor knot.

Checkpoints

1) Two bights around the standing ends, held in place by two loops.

2) The running end of the bight is on the inside of the two fixed loops.

3) Minimum 4" pigtail after the double overhand knot.

Term

END OF ROPE PRUSIK

Class 4, Special Knot

Definition

Purpose: To attach a moveable rope to a fixed rope at the end of a rope.

Checkpoints

1) Two round turns with a perpindicular locking bar.

2) Stabilized with a saftied bowline no more than 6" from the purssic.

3) The ropes between the prussic and the bowline have equal tension.

4) Minimu 4" pigtail.

Term

MUNTAR HITCH

Class4, Special Knot

Definition

Purpose: To form a mechanical belay

Checkpoints

1) A bight passing through a locked carabineer

2) The closed end of the bight is around the standing or running end.

Term

RAPPEL SEAT

Class 4, Special Knot

Definition

Purpose: Used to make a harness for climbing or rappelling

Checkpoints

1) Two overhands around the body, above the hips.

2) Ropes not crossed between the legs.

3) A half hitch on each hip over the waist rope.

4) Square knot on the guide hand side.

5) Minimum 4" pigtail after overhand safeties.

Term

BOWLINE ON A COIL

Class 4, Special Knot

Definition

Purpose: Used to secure a climber to the end of a climbing rope.

Checkpoints

1) A minimum of four wraps around the body not crossed.

2) A bight held in place by a loop.

3) The loop must be underneath all wraps.

4) Centered on the middle-line of the body.

5) Minimum of 4" pigtail after second overhand knot.

 

Term

MIDDLE OF THE ROPE FIGURE EIGHT SLIP KNOT

Class 3, Middle of the Rope

Definition

Purpose: To form an adjustable bight in a rope.

 

Checkpoints

1) The knot is in the shape of a figure eight.

2) An adjustable bight passes through one loop of the figure eight.

Term

TWO LOOP FIGURE EIGHT KNOT

Class 4, Special Knot

Definition

Purpose: Used to form two adjustable fixed loops in a rope.

 

Checkpoints

1) Two ropes running side by side in the shape of a figure eight.

2) The knot has two adjustable fixed loops.

3) The loops are adjustable by means of a common locking bar at the bottom of the knot.

4) Minimum 4" pigtails and no twists.

Term

BUTTERFLY COIL WITH FARMER'S TIE OFF

Class 4, Special Knot

Definition

Purpose: To prepare a climbing rope for carrying on the body.

Checkpoints

1) Coils uniform and even, no greater than 6" difference.

2) A minimum of three turns around the coils with the first one locking on itself.

3) A double bight thru the top of the coils, securing the standing ends and dressed down.

4) A minimum of one wrap around the body and coils tied off with an unsaftied square knot.

5) Minimum 4" Pigtail.

Term

WEB WRAP

Definition

Purpose: To attach a moveable piece of webbing to a fixed rope.

 

Checkpoints

1) A bight locked over a minimum of three turns

2) A knot is offset from the loop and compeltely out of wraps.

Term

AUTOBLOCK KNOT

Definition

Purpose: To attach a moveable rope or webbing to a fixed rope that is easy to release.

 

Checkpoints

1) A minimum of four turns around the rope.

2) Both bights are in the carabineer.

3) The joining knot is offset and out of turns.

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