Because of increased performance, economy, and just plain good looks, an ever-increasing population of Falcon jets are flying with winglets. As most of us know, there are two paths of installation for winglets on a Falcon jet.
Just by walking up to an aircraft, it is difficult to tell whether the winglet installation was performed by way of an Aviation Partners Inc. STC or a Dassault Falcon jet modification to type design.
The easiest way to tell the difference is to look at the modification of the outboard slat cuff.
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If the cuff is installed with rivets, it is an API installation.
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This same cuff if installed with screws means the winglet install path is a Dassault modification.
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Knowing the difference is important as it determines which maintenance and parts manuals are to be used for continuing service.
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