PLT OF A NANCHANG CJ6A MIL TRAINER LOST CTL DURING GUSTY WINDSHEAR CONDITIONS DURING LNDG AT AN UNCTLED ARPT RESULTING IN RUNNING OFF THE RWY INTO A DITCH AND HITTING A FENCE. THE ACFT'S NOSE GEAR WAS COLLAPSED AND THE PROP BLADES BENT. THERE WERE NO INJURIES TO THE 2 OCCUPANTS.

Narrative

I WAS ATTEMPTING TO MAKE A SHORT 30 MI FLT TO RETURN TO MY HOME BASE ZZZ. THERE WAS A LINE OF TSTMS MOVING TOWARDS US FROM THE W. MY RTE OF FLT WAS DUE S. AFTER TKOF AND FLYING S FOR 5 MINS; IT BECAME APPARENT THAT WE WOULD NOT BE ABLE TO CONTINUE TO ZZZ BECAUSE RAIN SHOWERS HAD MOVED INTO THAT AREA. I TURNED AROUND HEADED BACK TO M01. THE WINDS HAD BEEN OUT OF THE S ALL DAY; SO I RE-ENTERED THE DOWNWIND FOR RWY 16. THE WINDS WERE BEGINNING TO GET GUSTY FROM THE APCHING TSTM. ON FINAL APCH; THE WINDS WERE REQUIRING CONSIDERABLE R CRAB INDICATING STRONGER WINDS FROM THE W. I LANDED 1000 FT FROM THE APCH END OF RWY 16; WHICH IS 3800 FT LONG. JUST AS I TOUCHED DOWN; WE WERE HIT FROM THE REAR BY A VERY STRONG GUST FRONT OF THE APCHING TSTM. THE MICROBURST AND RESULTING WINDSHEAR WERE RECORDED AT 50 MPH. WITH THE STRONG TAILWIND ON THE RWY; I WAS UNABLE TO STOP THE ACFT AND FEARED DOING A GAR IN A POTENTIALLY UNSURVIVABLE WINDSHEAR CONDITION. WE IMPACTED THE FENCE OFF THE END OF THE RWY. THERE WERE NO INJURIES; THE ACFT SUSTAINED MINOR DAMAGE. I SHOULD HAVE DELAYED THE FLT UNTIL THE TSTMS HAD MOVED THROUGH THE AREA. ON MY RETURN TO M01; I SHOULD HAVE CONSIDERED THE POSSIBILITY OF WINDSHEAR AND DIVERTED TO A FIELD WHICH WAS FURTHER AWAY FROM THE APCHING STORM. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT THE ACFT WAS A LOW WING RADIAL ENGINED RETRACTABLE GEAR FOREIGN MIL TRAINER CERTIFICATED IN THE EXPERIMENTAL CATEGORY. THE NOSE GEAR AND PROP WERE DAMAGED WHEN THE ACFT EXITED THE RWY INTO A DITCH AND HIT A FENCE.