A Brazilian page gave some information on how all the best astronomers are in the North and all the best cosmic portrayals are in the South. This is a Pegasus engine from a Harrier near it's aircraft. The variable duct ends on the fan portion are missing. In service it had a four legged thrust profile when hovering or operating in vertical mode. The fan on the front is just like what appeared on commercial airliners like the 707, DC-8 and late models of the Comet. The high thrust to weight contribution of V/STOL design exhibited in the Rolls-Royce XJ-99 lift engines faded as the VAK-191 fighter/attack and Dornier DO-241 transport did not reach production or operational status. You probably want me to fix that matter of a Peggy 21 or a Peggy 23 now that the bigger carbon fiber wing made a B model and both version are retired in British service as the type continues in USMC service. No No! No! it was a Peggy 15 that wasn't done and the 21 and 23 is about thousands of pounds of thrust I went and looked it up. In all the budgetary of 2012 I see the official name of F402-RR-408 Engine which I was not allowed to even ask about at Pratt & Whitney in 1978.