1、c a P c .- . .- FED. SUP CLASS 2620 THE TIRE SBALL BE IN ACCORDANCE WITH THE APPLICABLE REQUIRKCEXTS OF MIL-R-7726 EXCEPT AS SPECIFIED EEREIN STATIC IAFL. BURST BEAD MOLD RATING RATING PSI PSI IN. LBB DEPTH t 2% SIZE PLY LOAD PRESS PRESS WIDTH WEIGHT STATIC TREAD SKID DEFLC LEE lwmn (MIN) (MAX) (KM)
2、 oz.-N. iw( (MIN) - 4% 28X9.0 &/22TL 16,650 235 . 825 2.25 52.5 14 - 2/RIB .25 32% - l/TL TUBELESS - 2/FIVE GROOVES WITH A 0.30 INCH MINIMUM WIDTH AT TOP OF GROOVE RIM DATA: WIDTH BETWEEN FLUGE LEDGE FLANGE FLANGE FLANGES WIDTH DUMETEll HEIGHI! KEEL FLANGE EDGE LEDGE (INCH) ( INca) (INCH ) (RICH) RA
3、DIUS RADIUS RADIUS WIDTH 7.00 1.00 12.00 1.25 ,625 ,625 * O9 2.25 THIS TIRE SHALL BE SIIITABLE FOR USE AND PROVIDE REASONABLE SERVICE LIFE ON NAVY CARRIER TYPE AIRCRAFT DURING ALL NORMAL OPERATIONS AT TAKE-OFF SPEDS OF NOT MORE THAN 173 MPH AND LANDING SPEEDS OF NOT MORE THAN 150 MPH O9 ALL TYPES OF
4、 RUNWAYS AND O8 AIRCRAIT CARRIERS. TIFE 1: DYNAMIC TEST - THE TIRE SHALL !JITHSTAND WITHOW FAILURE.50 CYCLES OF TEST A, 50 CYCLES OF TEST B, AND 15 CYCLES OF TESTS C, D AND E. TEST A - TM/TAKE-OFF - TAXI THE TIRE ON THE FLYWHEEL FOR 10,000 FEET UNDER 16,650 LB MAD AT 23 MPH. FLYWHEEL UNDER FULL LOAD
5、 AND THEN ACCELERATE (SIMULATING TAKE-OFF) TO 173 MPH IN ACCORDANCE WITH THE FOLLOWING LOAD-SPEED-TIME DATA: STOP THE UAD (LES) SPEED (MPH) TIME (SEC) DISTANCE (FT) 16.650 O 16,000 35 14,400 69 12,500 98 10,200 i64 7,500 150 3,600 168 O 173 O 5 10 15 20 25 30 32 4,475 TEST B - LANDING/TAXI - THE TIR
6、E SHALL BE LANDED AGAINST THE FLYWHEEL ROTATIIiG AT A PERIPHERAL SPEED OF 150 MI“, DECELERATED TO O MPH AND TAXIED IN ACCORDANCE WITH THE FOLLOWING LAD-SPEED-TIKE DATA: TIME (SEC) DISTANCE (FP) I.AD (LES) SPEED (MPH) LAND TAXI O 5,000 7.200 9.100 10,600 11,700 11,900 12,100 12,100 150 135 110 86 62
7、39 15 O 23 O 5 10 15 20 25 30 33 296 3,850 10,000 TEST C - CATAPULT TAKE-OFF - THE TIRE SHALL BE L4NDED AT A LOAD OF 45,000 LEE AGAINST THE FLYWEEL ROTATING AT A PERIPHERAL SPEED OF 35 MPH AND WLANDED AFTER A DISTANCE .OF 300 FEET HAS BEEN COVERED. AN INFLATION PRESSURE OF 375 PSI ADJUSTED FOR FLYWH
8、EEL &VATURE SHALL BE USED. TEST D - TAKE-OFF CAMBER Di- PERFORM THE TEST A SPECTRUM WITH THE PLWE OF THE TIRE INCLRIED INBOARD AT AN ANGLE OF 5 DEGREES. 9- PERFORM THE TEST A SPECTRUM WITH THE PLANF, OF TilE TIRE INCLINED OWBOARD AT AN ANGLE OF 5 DEG-. TEST E - LANDING CAMBER El- PERFORM THE TEST B
9、SPECTRUMWITB THE PLANE OF THE TIRE INCLINED INBOARD AT AN ANGLE OF 5 DEGREES. E2- PERFORM THE TEST B SPECTRUM WITH THE PWIE OF TEE TIRE IHCLINED OWBOARD AT AN ANGLE OF 5 DEGREES. () DENOTES CHANGES W J. TITLE MIL IT ARY ST ANDA RD 4h.r Curt TIRE PNEUMATIC, AIRCRAFT, REBUILT 28 8 9.0 (173MpH) TYPE VI
10、1 (NAVY) MS33 85(AS) RROCUREYENT SPECIFK&TIffl SUPERSEDES: MIGR-7726 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Pis3385 REV A 26 m 99993112 0008285 2 m I 2620 TI% 2: COVT LAB TEST - TEIS TIRE SHALL BE .REBUILT FROM THE SAME BATCH AS TEST TIRE 1
11、AND SHALL BE IDRnLCALLY PROCESSD. TRIS TIRE SHALL NOT BE COAPRACPOR TESTED AAD SHALL BE PROVIDED FOR GOmWfT LABORATORY TESTING. SECTIOX - A REPRGSENTATIVE SECTION OF TIRE 1 AND TI= 2 SHALL BE SuBMIlTED To A GOK3“ LABORATORY AS SPECIFIED IN MS 3377. AIR REENTION - TIiE TUBELESS TIRE SHALL BE INFLATED
12、 To A PRESSURE OF 375 PSI AND ALLOHED TO STAND FOR A PERIOD OF 4 HOURS AT WICH TIME THE PRESSURE DROP DUE TO GROW“ SHALL BE REPLACED. AN ADDITIONAL 12 HOURS AT WHICH TPIE THE PRESSURE SHALL BE MEASURED AIID THE TIRE INSPECTED. THE AIR PRGSSURE LOSS SHALL NOT EXCEED 5 PERCENT AND THE TIRE SMLL NOT FI
13、EVEAL ANY APPEARANCE OR PERFORMANCE DEFECTS, SUCH AS SIDEHALL BLISTERS. TREAD SEPARATION, ETC. REFEFSXCED DOCUMENTS SKALL BE OF THE ISSUE IN EFFECT ON DATE OF INVITATIONS FOK BIDS, OR REQUEST FOR PROPOSAL EXCEPT TIMT REFERENCE ADOPTED IIIXISISTRY STAXDARUS SHALL GIVE UATE OF ThE ISSUE ADOPTED. THE T
14、IRE SHALL THRf STAND FOR NOTES - 1 S. FOR DESIGI FEATURE PURPOSES, THIS STA3UAF.U TAUS PUCEDENCE OYER PROCUmlEXT DOCUHELLTS KEFEREdCELl HEREIN. TITLE TIRE PNEUMATIC AIRCRAFT REBUILT 28 9.0 (173 h“) TYPE $11 (NAVY) i Ll n MILITARY STANDARD IhiZZk I I PROCUREUENT SPECIFtCATATION SUPERSEDES: WET OF MIL-R-7726 DD 672-1 (Llrltd ceorIiatAma) cmnool or I PW n MAY usan. ir US. GOVERNMENT PRINTING OFFICE: 1983-605-034-374 . V Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
