Dynamic Test Techniques: Split-S

Every year the ITPS courses are enriched by including new subjects and exercises. This year for the fixed wing Graduate course, a week was added on Aerodynamic Modeling using Dynamic Flight Test Techniques. The following shot comes one of the preferred techniques used for fighter a/c modeling: Split-S. The data gathering portion of the maneuver is pretty short, timing roughly the initial 3-4 seconds, with g build up rates in the order of 2g/sec till reaching the desired g limit and before hitting the -70deg pitch angle. The g-load is then relaxed for the recovery portion.

split_s

I flew as FTE on the first explanatory flight in the L-29 where we performed Roller Coasters, Dynamic Wind-up-Turns and Split-S’s reaching up to 6.8g.

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