All four engine variants for the Joint Strike Fighter (JSF) concept demonstrators are under test at Pratt &Whitney. The F119 derivative, which will power Boeing's X-32B short take-off and vertical landing (STOVL) JSF demonstrator, entered ground testing in late November, joining three other engines already being tested for the programme.
The four powerplants now on test are:
the JSF119-614C for Boeing's X-32A conventional take-off and landing (CTOL)demonstrator; the JSF119-614S with Rolls-Royce direct-lift hardware for the STOVLX-32B; the JSF119-611C for Lockheed Martin's CTOL X-35A; the JSF-611S with Rolls-Royce Allison shaft-driven lift fan for the STOVLX-35B.Flight testing of the competing JSF concept demonstrator aircraft is scheduled for 2000.
Source: Flight International
