Found and Explained Official on MSN

The Nazi fighter with a propeller in front and back - Dornier Do 335

The Dornier Do 335 used a push-pull engine layout with one propeller at the nose and another at the tail to chase high speed ...
Avionics International

USAF Expects KC-135 Center Console Refresh Solicitation In May

KC-135 Center Console Refresh (CCR) program office at Tinker AFB, Okla., said that it expects to issue a solicitation in May after […] ...