KaBar from Camp Smith, HI NEX I modded in the early 90s when searching for MIAs/POWs across SE Asia (Vietnam War) and the Pacific (WW2). Made it into a clinometer with sights and plumb line notches and drilled a lanyard hole. This thing helped lay in more than one helicopter LZ.
Mods:
1. Notched the blade's spine.
2. Drilled a hole through the top of the guard.
3. While sighting through the handguard hole, using the clip point cut off as the front sight, I aimed at a point I placed on the wall to ensure my line of sight was LEVEL (level line of sight is crucial).
4. While maintaining that level line of sight, I placed nylon string in the blade spine notch I cut and let the string hang like a plumb bob (tied a nut to the end of the string).
5. While maintaining that level line of sight, and hanging the plumb bob, I pinched the string against the side of the blade and used a sharpie to mark where the string laid on the blade. This is angle zero/level.
6. Then I drew arches (open end up) on the blade with the zero/level line bisecting the arc, and marked increments on the arc toward the tip of the blade and toward the handguard.
7. I used a dremel tool to engrave the arc, the zero angle line and hacks along the arc.
8. Lastly I drilled the pommel for a lanyard.
This proved to be a very practical mod for me. After having done this I could use the knife with a string and anything acting as a plumb bob as a clinometer. Mostly I used it to determine the height of trees or other obstacles when laying out helicopter LZs and such.
Mods:
1. Notched the blade's spine.
2. Drilled a hole through the top of the guard.
3. While sighting through the handguard hole, using the clip point cut off as the front sight, I aimed at a point I placed on the wall to ensure my line of sight was LEVEL (level line of sight is crucial).
4. While maintaining that level line of sight, I placed nylon string in the blade spine notch I cut and let the string hang like a plumb bob (tied a nut to the end of the string).
5. While maintaining that level line of sight, and hanging the plumb bob, I pinched the string against the side of the blade and used a sharpie to mark where the string laid on the blade. This is angle zero/level.
6. Then I drew arches (open end up) on the blade with the zero/level line bisecting the arc, and marked increments on the arc toward the tip of the blade and toward the handguard.
7. I used a dremel tool to engrave the arc, the zero angle line and hacks along the arc.
8. Lastly I drilled the pommel for a lanyard.
This proved to be a very practical mod for me. After having done this I could use the knife with a string and anything acting as a plumb bob as a clinometer. Mostly I used it to determine the height of trees or other obstacles when laying out helicopter LZs and such.
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