It is well shaped for it but materials (titanium + graphite) aren't good enough.
However it does follow some fundamental stealth rules when it comes to controlling the scatter of radar waves.
So back in the days it could be called stealth, today... not very much so.
Black
3.5
the stratosphere!
2200 mph
2193 mph
Stratosphere
The SR-71 Blackbird was introduced into service in 1966.
It is the Lockheed SR-71 "Blackbird", a reconnaissance aircraft.
No it just flew very high to avoid radar.
About 3 times the speed of sound. (3 mach)
titanium
No it is an advanced, long range, Mach 3+ strategic reconnaissance aircraft.