The Air Force’s—and NASA’s—motivation behind the X-44 Manta project, starting in 1999, was to test the feasibility of full yaw, pitch and roll authority without tailplanes (horizontal or vertical), with attitude control relying purely on 3D thrust vectoring.
The reborn X-44 MANTA faces off against the Sixth Generation
Aviation, Page 5
Why can't we make more F-22s? - Quora
Did America's next stealth fighter just get revealed on Instagram?
qph.cf2.quoracdn.net/main-qimg-5296ff1827f5468050b
USAF/US NAVY 6G Fighter Programs - F/A-XX, F-X, NGAD, PCA, ASFS
Media: a secret Chinese fighter of the sixth generation got into
x 44 manta towards 6th generation, the F 35 and F 22 are shifted
X-44 Manta: Will US 6th Generation Fighter Jet Look Like This
Aviation, Page 5
The National Interest: Blog
Did America's next stealth fighter just get revealed on Instagram?