CABLE TO DIRECTOR FROM KWCABLE RE FLIGHTS NUMBERS NINE AND TEN WERE FLOWN ON TUESDAY 12 JUNE

• Document Type: FOIA
• Collection: FOIA Collection
• Document Number (FOIA) /ESDN (CREST): 01425842
• Release Decision: RIFPUB
• Original Classification: U
• Document Page Count: 4
• Document Creation Date: March 9, 2023
• Document Release Date: December 17, 2021
• Case Number: F-2018-01483
• Publication Date: June 13, 1962

Approved for Release: 2021/11/22 C01425842
CLASSIFIED MESSAGE
OATS 20002 13 JUN 62
TO D 'RECTOR
MOM ITCABLE
Among DPD (1,21 vii,5 p6,7118,9 10)
IMF� S/C (11)
Si)
TOR 205 92 13 JUN 62
TO OPIM AD IC IINFO
OXCART
EYES ONLY FOR COI. BEERL I, MR PARANG OSKI, MR KEEFER, FROM COL NELSON
TWO FLIoirs WERE FL OWN ON TUESDAY 12 JUNE, FLIGHTS NUMBERS
NINE AND TEN.
FLIGHT NUMBER NINE AIRBORNE ONE HOUR FIFTEEN MINUTES, TAKE.'
OFF WE 'GM 85,000 POUNDS AFTERBURNER WITHOUT WATER. CLIMB 350
KEAS TO 20 THOUSAND � AB OFF, FULL DEFLECT ION ROLL AT o92 AT
20 THOUSAND. AB CLIMB TO Al THOUSAND ACCEL TO 102 MACH,
ACCOMPLISHED 2G WINDUP TURNS Kr ij�THOUS AND WITH 2 G MAINTAINED IN
STEADY STATE TURN, CL IMBED TO A5 THOUSAND, 270 KEAS WIND UP
TURNS TO 105 G MAINTAINED IN STEADY STATE TURN, ROLLER COASTERS
ACCOMPLISHED AT 5 T NOUS AND
DECENDED TO i� THOUSAND, 2 TO A DEGREE SIDE SLIPS EACH WAY
ACCOMPLISHED AT 250 K, THESE REPEATED AT 300K,
INVESTIGATED SINGLE Al) FAILURES AT 40 THOUSAND, FEET OFF
RUDDERS, RECORDED YAWING AND TRIM REQUIREMENTS,
"1",
ens CABLE 4978
�
DESCENDED TO 30 THOUSAND, CONDUCTED STABIL IT Y 'Nast NAT IONS
REPRODUCTION BY OTHER THAN THE ISSUING OFFICE IS PROHIBITED. Copy No,
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CABLE 4978 (IN 39220) PACE Two
WITH CC BACK TO 25 PERCENT MAC, As YOU AWARE THIS WAS FIRST
FLIGHT WITH AU. TANKS SEALED AND NITROGEN sYsTEM IN ORM ION
e-
ALSO, THIS WAS FIRST FLIGHT wITH ANGLE OF ATTACK AND YAW INDICATING
SYSTEMS INSTALLED,
ANGLES oF ATTACK FOR LANDING CONFIGURATION WERE INVESTIGATED
WITH 10 DEGREE RECORDED FOR 160 KEAs AT LANDING WEIGHT" 10,5
DEGREES RECORDED FOR 155 KEAS,
FOR SIMLLATION OF SINGLE ENGINE LANDING, RIGHT ENGINE WAS PILLED
BACK TO 80 PERCENT RPM ON DOWN WIND LEG, LEFT ENGINE VARIED BETWEEN
96 DEGREES TO 9g DEGREES Rpm TO FLARE, THREE DEGREE TO 4 DEGREE
RUDDER TRIM UTILIZED IN PATTERN To REDUCE RUDDER FORCES REQUIRED,
TRIM WAS ZEROED our JUST PRIOR TO FLARE, TOUCHDOWN AT 145K,
NORMAL LANDING, CHUTE DEPLOYED AT 140K, SEVERAL RISERS FAILED AT
REEF POINT, SNAPPING BACK AND TEARING CANOPY IN TWO PLAcEs AT ABOUT
THE 10 O'CLOCK POSITION, VIEWED FROM BEHIND, THESE TEARS APPEARED
TO DE ABOUT 5 FELT IN LENGTH, HOWEVER THE CANOPY DID NOT COLLAPSE
BUT CONTINUED "ro DECELLERATE AIRCRAFT, PILOT TuRNED OFT RUNWAY
32 AT TAXIWAY, AIRCRAFT WAS REFUELED AND PREPARED FOR AFTERNOON
FLIGHT,
FLIGHT NUMBER TEN WAS AIRBORNE FORTY SIX MINUTES, TAKE OFF
WEIGHT 85,600 POUNDS Cc AT 2103 PERCENT MAC: EssENTIALLY SAME
FLIGHT TEST ITEM WERE SCHEDULED, TAKE OFF NAPE IN AD PX 86 DECREES
F TEMP, WITH APPROXIMATELY 7 KNOT TAILWIND COMPONENT, TAM OFF MADE
ON RUNWAY 32 TO PERMIT ROLLOUT ON LAKE IF TAKE-OFT ABORTED,
CLIMB WAS MADE TO 38 THOUSAND IN An, ACCELERATED To 102
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CAKE �978 ( IN 39220) PAGE THREE
MACH AT 40,000, TUR MD BACK TOWARD AREA IN 102G TURN ACCELERATED
TO 397 KEAS AT 40 THOUSAND, CL IMBED TO 42 THOUSANDS PILOT DETECTED
WHAT HE 'mown WAS EITHER MILD BUFFET OR TURBULENCE AT 1q47
MACH, IMMEDIATELY CAME OUT OF AB AND SLOWED AIR CRAFT . INSPECT ION
BY CHASE REVEALED SHEET MET AL DAMAGE TO INBOARD S IDE OF LEFT VERT ICAL
300K DESCENT WAS BEGUN FOR RET URN TO BASE, REMAINDER OF FL IGHT WAS
CANCELLED DUE TO ABOVE AND DUE TO CONSIDERABLE TURBULENCE AT LOW
ALT ITUDE
a
FUEL DUMP SYSTEM WAS EXERCISED, DUMPING 10 THOUSAND POUNDS FUEL,
APPROACH AND LANDING NORMAL wrril NO DRAG cHurr ABOARD . ROLL Our ON
LAKE BED WAS NORMAL WITH MODERATELY STRONG BRAKING EMPLOYED
LAKE BED WIT HSTOOD ROLL OUT SAT ISF ACTORIL Y. NOTED BY RUNWAY
OBSERVERS WAS FACT TH2_11GIff MAIN GEM OUTBOARD TIRE WAS FLAT DURING
LANDING ROLL WIT! TIRE PAICIALLY D ISENTEGRAT ING DURING
-
CHECK OF X RUMENrgJNJETEALED TIRE BLEW ON TAKE-OFF a
WAS UNAWARE OF BLOWN TIRE UNTIL INFOR LSD DURING TAXI BACK TO HANG AR.
AXING.
PILOT
INSPECT ION OF VERTICALS REVEALS SKIN CRACKING AND SEPARAT ION ON
INBOARD SIDE OF LEFT VERTICAL JUST AHEAD OF BEEFED up AREA
MODIFIED AFTER LAST PREVIOUS INCIDENT OF CRACKING, CRACK RUNS
VERTICALLY ABOUT 1 INCH AHEAD OF BEEF UP AREA. INBOARD SIDE OF
R IGHT VERT ICAL DID NOT APPEAR TO CRACK AND SEPARATE, BUT SEVERAL
Li
RIVETS WERE PULLED THROUGH THE SKIN. OUTBOARD SIDES OF Boni
VERTICALS APPEARED TO BE NORMAL . FL IG HT PLANNED FOR WEDNESDAY WAS
OF COURSE CANCELLED. IT NOW, APPEARS THAT THURSDAY FL IGHT WILL
ALSO BE CANCELLED DUE TO ABOVE PROBLEM PLUS A POSSIBLE ENG INE CHANGE.
revtir
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CABLE 4978 (IN 39229) PAGE FOUR
INFO ON ENGINE CHANGE REQUIREMENr WILL DE FORWARDED WHEN LTAILS ARE
CLARIFIED.
COL DEERLI PERSONALLY BRIEFED PRIOR TO DEPARTLRE.
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