https://en.wikipedia.org/wiki/Douglas_X-3_Stiletto
The Douglas X-3 Stiletto is a 1950s United States experimental jet aircraft
Douglas designed the X-3 with the goal of a maximum speed of approximately 2,000 mph (3,200 km/h),[2] but it was seriously underpowered for this purpose and could not even exceed Mach 1 in level flight.[3
Yeah, reminded me of the X-3
As a kid, I thought it was the most cool aircraft ever.