Model #18 Attack Survival

[Lightstryder]

I have had my 7" SS model 18 for about 5 years now and I have never been able to figure out what the teeth on the spine of the blade are for exactly. They are linear, so they don't really function well as a saw. the only thing I can figure is for combat purposes only, possibly to rip on the way out. Can anyone tell me the purpose of these teeth please?

 

[bladerunner67]

Saw teeth work well for cutting one out of a plane canopy or cutting the fuselage of the plane. At least that's what I've read about them.
Dan in Kalifornia

 

[Lightstryder]

Oh yeah now that you mention it, I have a friend who was a Army Ranger Officer in Vietnam, that has an original model #18 with a 5" carbon steel blade and he mentioned that they used to rescue crew members from downed choppers with their knives. That make sense to me now. Thank you for the info.