1、FED. SUP CLAU 2620 THE TIRE SHALL BE IN ACCORMNCE WITH THE APFLICABU? REQUIRE“Ts OF MIL-R-7726 EXCEPT AS SPECIFIED HEREIN. I STATIC INFL. MAD STATIC IRW, UTING SZNG PSI INCH wms OZ-IN. TREAD DEPTH +32 UTED )(Ax. w. w. rnN. -4% SIZE PLY LOAD PRESS. WiiTH WZIGHT VNBAL. SKID DEPtEC 226.6-io 201.1 12,00
2、0 270 2.00 3c.o lo, RIB .30 32% - 2( M?TRIC: 558.0X167.6-254at 11 %i, - TUBELESS TIRE - 21 AT LEAST FOUR BVT NOT Io= TUAN SEVEN CONTINUOUS CIhMFERENTUL RIBS. “E GRDOVES SHALL BE SHAPED SUCH WT FOREIGN OBJECTS WILL R)T BECOME TRAPPED BEWEEN nlE RIBS, TJRE DAW (INCH). INFLATED OUTSIDE INFUTED SECTION
3、INFUTED SHOULDER INFLATED SWULDER DIAMETER WIDTH DIAMETER WIDTH MIN. MAX. MIN. kiX. . u4x. . MAX. . 21.60 22.53 6.40 7.01 20.16 6.18 RIM DATA (INCH) WIDTH FUNGE LEDGE LEDGE FLANGE HEEL FUNGE RANGE BE“EEN UDTii DUMETER WIDTH BEIGHT BADIUS wnm EDGE FIANGES RADIUS - - - 5.50 0.875 10.00 2.05 1.00 .250
4、.625 ,1275 THE TIRE COYERED BY THIS DRAWING SHALL BE SUITABLE FOR USE AND PROVIDE REASONABLE SERVICE LIFE DURING ALL NORMAL OPERATIONS AT TAKEOFF AND UNDING SPEEDS INDICATED HEREIN ON ALL TYPES OF RUNWAYS AND ON AIRCRAFT CARRIERS. TEST INFLATION PRESSURE - THE TEST INFIATION PRESSURE FOR DYNAMIC TES
5、TS “A THRU G“ SHALL BE ADJUSTED 10 ENSURE IRE DEFLECTION WITHIN DESIGN LIMITS. FCR TIR3 0W.LL BS STS!.:ITTELl 2Y TFX CONTRACTOR. AW PROCESSIXG ZECKXTLES. TE TIFES SHALL BE REBUILT USING THE SAME COMPOLlNDS ERES SWLL BE EXA4Itii.D AS SPECIFLED BELOVI: TIRE 1: DLXXSIOXS - THE TIRE SKiLL BE INFLATED TO
6、 270 PSI Ahm ALLiE TO STAND FOR 4 HOURS MINIMUM AT ROON TEbIPERATURE AFTER WHICH TIME THE PRESSURE DUE TO GROWTH SK4LL BE RE?LACED. THE REBUILT TIRE DIMENSION AT 400 PSI SHALL BE WITHIN THE DIMENSIONAL LIMITS SPECIFIED ABOVE. DYNAMIC TEST - THE TIRE SHALL WITHSTAND 45 CYCLES OF TEST A, 32 CYCLES OF
7、TEST B, 2 CYCLES OF TEST C 1 CYCLE OF TEST D 24 CYCLES OF TEST E 24 CYCLES OF TEST F AND 4 CYCLES TREAD WAR. OF TES+ G WITHOUT FAILUREOR VISIBLE DETEPJORAION OTHER THAN NOR EXPECTED TIRE 2: DYNAMIC TEST - THE TIRE SHALL WITHSTAND 20 CYCLES OF TEST H, AND 25 CYCLES OF TEST A WITHOVT EVIDENCE OF FAILU
8、RE. DYNAMIC TESTS: TEST A TITLE TIRE, PNEUHATIC, AIRCRAFT, REBUILT, 22X6.6-10, L; B I I V L RY 56 A ti 3: P, D “ NAVY-AS ktnrcurc NEW DESIGN. RCCUREYENT SPECIFUTW SUPERSEDES: WZt M Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MSLqL87 2b 9 9999932
9、0008377 7 W O L ou TESTB- TEST C- Y IAXTSG - TAXI - THE TIRE SHALL BE LANDED AGAINST A FLWHEEL ROTATING AT A PERIPHERAL kkK%E?4;)30 FEET HAS BEEN COVERED. THE AVERAGE DECELER4TION RATE SHALL BE 3.52 FEET/ SECISEC BEiEEN 156 AND 132 MPH AND 9.68 FEET/SEC/SEC BEWEEN 132 AND O MPH INCREASED LINEARLY NI
10、TH TIME TO 3 ,600 POUN?)S IN P.5 SECONDS POUhQS IN 3.5 SECONDS TIRE ON TIlE FLYWHEEL FOR 10,000 FEET UNDER 5,500 POUNDS AT 30 MPH. ED *PH. THE FLYWHEEL SPEED SHALL THEN BE DECREPSED UNTIL A ROLL DISTAXCE OF AP- THE TIRE LOAD SHXL BE INCREASED LINEARL+ WITH TIME TO 3,000 PODWS IN i,5 SECONDS AFTER UN
11、DING TOTAL TINE OF APPROXTELY 30 SECWS. INMEDIATELY FOLIO.IING THE LWDIKG CXE , m TE INCREASED LINEARLY TO 5 906 Ah?) HAINTAiNED AT 5,900 POUNDS UNTILTHE TIRE IS uhXAII?ID AFR A HIGH SPEED IAhDISG - TAXI - THE TIRE SHALL BE IANDED AGAINST A FLYWHEEL ROTATING AT A PLRIPRJ. SPLEU OF 210 HP H. THE FLYW
12、HEEL SPEED SHALL THEN BE DECREASED UNTIL A ROLL DISTASCE OF APPROXIMATELY 7995 FEET HAS BEEN COWRED. THE AVERAGE DECELEIMTION RATE SHALL BE 3.26 FT/SEC/SEC BEIWEEN 218 AND 198 HPH Ahm 8.0 FT/SEC/SEC BEWEEN 198 Ahm O IIPH. THE TIRE LOAD SHALL BE INCREASED LIYEARLY WITH TIME TO 2,000 POUNDS IN SECOSDS
13、 AFTER UNDING, MAINTAINED AT 2,000 POUhQS FOR 7 SECONDS, INCFEASGD LINEARLY TO 4,200 POlIhDS IN 3.5 SECONDS, THEN DECREASED LINEARLY WITH TIME TO 3,400 POUNDS AT 45 SECONDS AFTER THE START OF THE UNDING ROLL. IWDTATELY FOLLOWING THE IANDIXG CYCLE, TAXI THE TIRE ON THE FLYWHEEL FOR 10,000 FEET UEDER
14、3,400 POUNDS AT 30 MPH. 1.5 COVERED IN APPROSDIATELY 41 SECONDS. FOR 5 SECOh?)S, FROM START). AND UIhTAIhTD AT 7,000 POUNDS FOR 17 SECONDS (41 SECOXDS FROM START), AT WIIICII TIMIT Tie TIRE IS UNIAADED. .ADDITIONAL 10.000 FEET WITH 5,500 POUNDS LOAD AT 30 MPH. THE INITIAL LOAD OF 5,500 POUNDS SHALL
15、BE MAIhTAIhTD DECREASED LINEARLY WITH TINX TO 3,600 POUNDS WITHIN 17 SECONDS (22 SECONDS INCE4SED LIEARLY TO 7,000 WUNDS WITHIN 2 SECONDS (24 SECONDS FROM START), IMMEIATELY AFTER TIX TIRE IS UNIANDED, CONTINUE TIE TAXI ROLL OUT AN TEST E - CAblBER - THE TIRE SHALL BE IANDED AGAINST A FLYWKEEL ROTAT
16、ING AT A PERIPHERAL SPEED OF WITH 6,850 POUhDS LOAD FOR A DISTANCE OF 2,500 FEET WITH THE PiAhX OF THE TIRE INCLIhZD INBOARD AT AN ANGLE OF 15 DEGREES. =ST F - CAblBER - PERFORM THE TEST E SPECTRUM WITH THE PIANE OF THE TIRE INCLINED.15 DEGREES -. TEST G - LONG TAXI - THE TIRE SHALL BE IANDED ON THE
17、 FLYWHEEL ROTATING AT A PERIPHERAL SPEED OF 30 PIPH FOR 30,000 FEET WITH 5,500 POUNTDS LOAD. TEST H - CAIAPULT COSDITION - ACCELERATE THE FLYWHEEL AT AN AVARAGE RATE OF 24 FT/SEC/SEC FROM D ?PH TO 82 E. Pi. COVERED IN APPROXWATLY 5 SECOh?)S. TEE INITIAL LOAD OF 35 O00 POUNDS SHALL BE MAINTAIhTD FOR
18、1 SECOXD, DECREASED LINEARLY WITH TPIE TO 17,500 POUNDSIN 3.5 SECOhmS AND DECREASED T( ZERO WL%?)S AT THE TIME THE TIRE IS “DE0. THE TIRE INTIATION PRESSURE SHALL BE 350 PS: CORRECTED FOR THE FLYWHEEL DIAMETER. THE TIRE ?HALL BE UPNLNDED AFTER A ROLL DISTANCE FO 300 FEET HAS BEEN FLYWHEEL DPJ$ETER (
19、LYCH) TIRE IhFLATION mssm (510 PSI) 84 422 96 410 120 396 TIRES 3 AND 4: TIRES 3 Ah?) 4 SHALL NOT BE SUBJECTED TO CONTRACTOR TESTING; HOWEVER, A IALF SECTION OF TIRE 3 AND THE COMPLETE TIRE 4, ALONG WITH A EPRESEhTATIVE HALF SECTION OF TIRES 1 Ah9 2 AFTER DYNAMIC TESTS SHALL BE SUBMITTF,D TO THE COG
20、NIZANT GOVERNMENT IABORATORY AS SPECIFIED IN b53377. NOTES : 1. REFERENCED DOCXEIITS SHbLL BE OF THE ISSUE IN EFFECT ON DATE OF INVITATIONS FOR BIDS, CR REQUEST FOR PROPOSAL EXCEPT THAT RFFERENCED ADOPTED INDUSTRY DOCVMNTS SHALL GIVE THE DATE OF THE ISSUE ADOPTED. FOR DESIGN FEATLIRE PURPOSES, THIS
21、STANDARD TAKES PRECEDENCE OVER PROCURPIENT DCMENTS REFERENCED HEREIN. 2. ITLE TIRE, PNEUMATIC, AIRCRAFT, REBUT, 22 x 6.6-10 CLBITABY STAI!D,IPI *A NAVY -AS khbt NEW DESIGN 1 I SHEET OF * ROCUREMENT SP CIFIC*TID( WPERSEOES: ID ,=;,672- 1 (1.1i.d .rma,l.i) MIL-R-7726 PUTENO.tYI7I *US. GOVERNMENT PRINTING OFFICE: 1878-705122/3823 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
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