SR71 Blackbird knives

Mecha

Titanium Bladesmith
Joined
Dec 27, 2013
Messages
9,174
Hello all,

I acquired pieces of the wreckage of an SR71 Blackbird that crashed long ago, with instructions to make a few knives. As you probably know, the SR71 Backbird was made almost completely from titanium alloy, and although is retired, is still the fastest jet aircraft ever made.

The alloy proved to be a bit...strange, but nevertheless, knives were made! I was able to get some decent hardness using a modified heat treatment for over-alloyed titanium, and they should be fine for cutting softer materials. Check out the metamorphosis below.

Two pieces selected for making knives:

pWnO7jY.jpg



Bolts removed and pieces cut to make four blades.

SYJlD2R.jpg



Flattened and gently forged a bit. Beginning to be ground to shape, laying on a pile of SR71 grindings:

HWb5JIw.jpg



Little ones coming along:

WRDtrYf.jpg



Marked!

qohpblS.jpg



The bigger ones ready for stick tangs to be welded in place:

NzGfl8g.jpg



Sticks affixed, and rivet holes filled:

H4GvURj.jpg



The finished knife blades, off to their owner to get handles, sheaths, sharpened, and probably a bit of polishing.

Hm7npaY.jpg


9WjomPA.jpg



I'm not much of a knifemaker, more of a sword and machete bot, but they turned out pretty good! It was a pleasure to turn these little pieces of astounding aerospace history into something novel for the world of blades.

knarfeng knarfeng
 

greatscoot

Some other kind of crazy.
Gold Member
Joined
Jul 21, 2012
Messages
9,480
That’s pretty cool. The SR71 is the most awesomest of aircraft.
 

WValtakis

Engraving, Ti anodizing, regrinds and mods
Knifemaker / Craftsman / Service Provider
Joined
May 29, 2004
Messages
15,235
You know, I'm really glad you like that blade. I'm flattered yet surprised that you haven't embellished it yet.
So many projects...so little time🤷‍♂️ I'm also aware that the particular alloy is a little difficult to work with;)
 

Mecha

Titanium Bladesmith
Joined
Dec 27, 2013
Messages
9,174
So many projects...so little time🤷‍♂️ I'm also aware that the particular alloy is a little difficult to work with;)

It may be not too bad for the engraving machine. That yue axe was armor plate which is a little extra rough on things. However that entire turbine blade is one giant HAZ. LOL 😂
 

jlauffer

Tempt not the Blade
Platinum Member
Joined
Apr 11, 2016
Messages
10,411
Crazy to think that if an SR71 went past an A10 at full speed and just as it passed, the A10 started firing, the bullets couldn't catch the Blackbird.🤯
 

Richard338

Gold Member
Joined
May 3, 2005
Messages
2,558
Crazy to think that if an SR71 went past an A10 at full speed and just as it passed, the A10 started firing, the bullets couldn't catch the Blackbird.🤯
Very cool, I just looked it up and top speed for the SR71 is equivalent to just over 3200 fps which is above the muzzle velocity of most large calibers (and bullets shed speed pretty quickly in any case).
 

Steven65

Traditional Hog
Platinum Member
Joined
Mar 11, 2008
Messages
4,525
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