Engines
Williams FJ33-4A certified; wraps loosening on new engine
On September 10, Walled Lake, Mich.-based Williams International received FAA type certification of its new 1,568-pound-thrust FJ33-4A.

On September 10, Walled Lake, Mich.-based Williams International received FAA type certification of its new 1,568-pound-thrust FJ33-4A. The company will follow this milestone with the introduction of yet another turbofan engine.

The FJ33-4A, which was originally scheduled for FAA certification in 2002, has been selected for the following in-development very light jets: Adam A-700, Diamond D-Jet, Air Technology Group Javelin and Safire Aircraft Safire Jet, as well as a number of other proposed VLJs that have progressed little over the years. Williams said it delayed its final certification program to “incorporate its advanced, dual-channel, full authority digital engine control (FADEC) sensor suite and software, which are common with those Williams…certified as part of the FJ44-3 engine” less than three months ago.

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