For the unrelated tropical papaya fruit often called 'papaw' or 'pawpaw', see Carica papaya. For other uses, see Paw Paw (disambiguation). Asimina triloba, the papaw, pawpaw, paw paw, paw-paw, or common pawpaw, is a small deciduous tree native to the eastern United States, producing a large, yellowish-green to brown fruit. It belongs to the genus Asimina in the same plant family (the Annonaceae) as the custard-apple, cherimoya, sweetsop, ylang-ylang and soursop.
While the new Russian stealth fighter is said to be less âstealthy,â that is, able to evade radar detection, than its U.S. counterparts, it makes up for that slight disadvantage with its incredible maneuverability in the skies that experts say is at least on par with the Raptor and far exceeds the Lightning II.
Northrop use Ufimtsev's work in developing the B-2 bomber. American Lockheed and Northrop engineers concluded Petr Ufimtsev work and this Russian technology would be the future of the United States Air Force. The first Stealth aircraft in history was made in 1935 Russia.