Any information on General Dynamics F-121 Sentinel project?

[hsinchong]

I saw on Instagram mentioning the F-121 Sentinel is some sort of triangular shaped UFO object not the old Aurora design which was rumoured to be. I have seen nothing of this project

 

[dannydale]

Instagram is a really great source of invalid data.

 

[quellish]

I saw on Instagram mentioning the F-121 Sentinel is some sort of triangular shaped UFO object not the old Aurora design which was rumoured to be. I have seen nothing of this project

This was the original source of this rumor:

https://www.deviantart.com/argonaut-greywolf/art/Tehachapi-Triangle-1992-874859099

Later a known fabricator expanded on it, attributed it to GD, etc

 

[dannydale]

"a known fabricator" LMAO. Got a name?

 

[quellish]

"a known fabricator" LMAO. Got a name?

He is deceased now, Joseph Jones. He originated the “TR-3” and others.

 

[hesham]

Hi,

https://www.dreamlandresort.com/forum/messages/59878.html

 

[Agent A]

I have only ever associated 'F-121' with the explanation and image already posted here https://www.secretprojects.co.uk/threads/current-mystery-aircraft-urban-legends.11250/#post-106450