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EYES ONLTDEEM. I, MR PARANCOSKI, MR KEEPER, FROM
FLIGHTS VERE FLOWN ON TUESDAYUNE. FLIGHTS NUMBERS NINE AND TEN.
FLIGHT NUMBER NINE AIRBORNE ONE HOUR FIFTEEN MINUTES. 0 POUNDS, AFTERDURNER VITHOUr WATER. EAS TOHOUSAND, AB OFF. FULL DEFLECTION ROLLTHOUSAND. AD CLIMBHOUSAND ACCELACH. ACCOMPLISHEDINDUP TURNS ATHOUSANDAINTAINED IN STEADY STATE TURN. CLIMBED TOEAs. WINE UP TURNSAINTAINED IN STEADY STATE TURN. RXLER COASTERS ACCOMPLISHED ATHOUSAND,
DECENDED TOEGREE SIDE SLIPS EACH WAY ACCOMPLISHED AT. THESE REPEATEDK,
INVESTIGATED SINGLE AD FAILURES ATHOUSAND, FEET OFF RUDDERS, RECORDED YAWING AND TRIM REQUIREMENTS.
REPROOUCnON BY OTHER THAN THE ISSUING OFFICE IS PROHiBTfED. Go* No.
DESCENDED TOHOUSAND, CONDUCTED STABILITY INVESTIGATIONS
APPROVED FOR RELEASE DATE: 7
S fc C8 T
INTWO
WITH CC DACK TOERCENT MAC. AS YOU AWARE THIS WAS FIRST
FLIGHT WITH ALL TANKS SEALED AND NITROGEN SYSTEM IN OPERATION.
ALSO, THIS WAS FIRST FLIGHT WITH ANGLE OF ATTACK ANB YAW INDICATING SYSTEMS INSTALLED.
ANGLES OF ATTACK FOR LANDING CONFIGURATION WERE INVESTIGATED WITHECREE RECORDEDEAS AT LANDING5 DEGREES RECORDEDEAS.
FOR SIMULATION OF SINGLE ENGINE LANDING, RIGHT ENGINE WAS PULLED DACK TOERCENT RPM ON DOWN WIND LEG, LEFT ENGINE VARIED BETWEENEGREES TOECREES RPM TO FLARE. THREE DEGREEECREE RUDDER TRIM UTILIZED IN PATTERN TO REDUCE RUDDER FORCES REQUIRED. TRIM WAS ZEROED OUT JUST PRIOR TO FLARE. TOUCHDOWN ATK, NORMAL LANDING. CHUTE DEPLOYEDK. SEVERAL RISERS FAILED AT REEF POINT, SNAPPING BACK AND TEARING CANOPY IN TWO PLACESUT THE'CLOCK POSITION, VIEWED FROM BEHIND. THESE TEARS APPEARED TO BEEET IN LENGTH, HOWEVER THE CANOPY DID NOT COLLAPSE BUT CONTINUED TO DE CELL ER ATE AIRCRAFT. PILOT TURNED OFF RUNWAY
[JATTAXIWAY. AIRCRAFT WAS REFUELED AND PREPARED FOR AFTERNOON FLIGHT.
FLIGHT NUMBER TEN WAS AIRBORNE FORTY SIX MINUTES. TAKE OFF0 POUNDS CG3 PERCENT MAC! ESSENTIALLY SAME FLIGHT TEST ITEMS WERE SCHEDULES. TAKE OFF MADE IN AB ATEMP, WITHNOT TAIL WIND COMPONENT. TAKE OFF MADE ON RUNWAY] [TO PERMIT ROUOUlT
CLIMB WAS MADE TOHOUSAND IN AD, ACCELERATED
)
THREE
URNER SACK TOWARD AREAC TURN. ACCELERATESEAS ATHOUSAND. CLIMBER TOHOUSAND. PILOT BETECTED WHAT HE THOUGHT WAS EITHER MTLB BU77ETT OR TURDULENCEACH, IMMEBIATELY CAME OUTD ANB SLOWEB AIRCRAFT. INSPECTION DT CHASE REVEALED SHEET METAL BAMACE TO INBOARD SIDE OF LETTK DESCENT WAS DEC UN FOR RETURN TO BASE* REMAINDERLIGKT WAS CANCELLED DUE TO ABOVE ANB DUE TO CONSIDERABLE TURBULENCE AT LOW ALTITUDE.
FUEL DUMP SYSTEM WAS EXERCISED, DUMPINGHOUSAND POUNDS FUEL.
APPROACH AND LANDING NORMAL WITH NO DRAG CHUTE ABOARD. ROLL OUT VAS NORMAL. WITH MODERATELY STRONG BRAKING ENPLOTEB,
WAS FACT THJT RIGHT MAIM GEAR OUTDO ARD TIRE WAS FLAT DURING LANDING ROLL. WITH TIREgENTEGR AT INC DURING BRAKING. CHECKNSTRUMENT AT ION REVEALED TIRE BLEW ON TAKE-OFF. PILOT WAS UNAWARELOWN TIRE UNTIL INFORMED DURING TAXI BACK TO HANGAR. INSPECTION OF VERTICALS REVEALS SKIN CRACKING AND SEPARATION ON INBOARD SIDE OF LEFT VERTICAL JUST AHEADEE7ED UPER LAST PREVIOUS INCIDENTRACKING. CRACK RUNS VERTICALLYNCH AHEADEE7 UP AREA. INBOARD SIDEIGHT VERTICAL DID NOT APPEAR TO CRACK AND SEPARATE, SUT SEVERAL RIVETS WERE PXLED THROUGH THE SKIN. OUTBOARD SIDESOTH VERTICALS APPEARED TO BE NORMAL. FLIGHTEDNESDAY WASOURSE CANCELLED. IT NOW APPEARS THAT THURSDAY FLIGHT WILL ALSO BE CANCELLED DUE TO ABOVE PROBLEMOSSIBLE ENGINE CHANGE.
INFOUR
INFO ON ENGINE CHANGE REQUIREMENT WILL DE FORWARDED WHEN DETAILS ARE CLARIFIED,
COL 3EERLI PERSONALLY BRIEFED PRIOR TO DEPARTURE,
END OF MESSAGE
Original document.
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