1、MS337Li REV A 26 7777732 0008273 b NAVY-AS ih., curt ROCUREMENT SPECIFICATION MIL-T-5041 WE TIRE SllALL BE IN ACCORDANCE WITH THE APPLICABLE REQUIREHENTS OF MIL-T-5041 EXCEPT AS SPECIFIED HEREIN SIZE PLY STATIC VERTICAL INFL. BURST BEAD STATIC MOLD SKID DEFLEC . RATING LOAD LOAD PBESS. PRESS. WIDTH
2、WEIGHT UNBAL. RATING LBS. PSI PSI IN. POUNDS OZ-IN DEPTH + 3% - 4% LBS. MIN. RATED MIN. ?W. HAX. HAX. TREAD MIN. - 31 - i/ - 21 MIL IT ARY ST AN DAR TITLE TIRE, PNEUMATIC, AIRCRAFT. 20 x 5.5, TIPE VI1 (NAVY) MS 3374 (AS) SUPERSEDE): UIEET OF - 205.5 16 TL 8,750 48.800 270 1215 1.51 22.0 12 Rib 0.26
3、32,OX - 1/ New Tire 21 At least three, but not more than seven continuous circumferential ribs. 31 TL Tubeless tire RIH DATA - THR TIRE SILALL BE DESIGNED FOR INSTAIJATION ON A 20 x 5.5-10 UIIEI:I. 1N ACCiIRI)ANdK Wllil MS 24370. THE TIRE COVERED BY THIS STANDARD SHALL BE SUITABLE FOR USE AND PROVID
4、E RWSONABLE SERVICE LIFE DURING ALL NOMIAL OPERATIONS AT TAKE-OFF SPEEDS OF NOT HORE THAN 184 MPH AND LANDING SPEEDS OF NOT MORE THAN 150 MPH ON ALL TYPES OF RUNWAYS AND AIRCRAFT CARRIERS. TIRE-1 - THE TIRE SHALL WITHSTAND 45 CYCLES OF TEST A, 45 CYCLES OF TEST B, AND 1 CYCLE OF TEST C WITHOUT FAILU
5、RE AND THEN BE SUBJECTED TO A HYDROSTATIC BURST TEST. PRESSURE, DESCRIPTION OF FAILURE AND LOCATION SHALL BE REPORTED IN THE QUALIFICATION TEST REPORT. THE PRESSURE SHALL BE INCREASED UNTIL THE TIRE FAILS AND THE FAILING TIRE-2 - THE TIRE SHALL BE INFLATED TO 400 PSI AND VERTICALLY LOADED TO 48,800
6、POUNDS OVER A 1 318 INCH DIAHETER STEEL ARRESTING GEAR CABLE (RESTRAINED AT BOTH ENDS) OR A PLAIN ROUND STEEL BAR STOCK IN TWO LOCATIONS 180 APART ON THE TIRE. STATIC BURST TEST. THE PRESSURE SHALL BE INCREASED UNTIL THE TIRE FAILS AND THE FAILING PRESSURE, DESCRIPTION OF FAILURE AND LOCATION SHALL
7、BE REPORTED IN THE QUALIFICATION TEST REPORT. THE TIRE SHALL THEN WITHSTAND 25 CYCLES OF TEST A WITHOUT FAILURE, AND THEN BE SUBJECTED TO A HYDRO- TIRE-3 - WITH THE TIRE INFLATED TO 400 PSI A VERTICAL LOAD OF 59.800 POUNDS SIIALI. BE rrri.isn OVER A I 318 INCH DIAMETER STEEL ARRESTING GEAR CABLE (RE
8、STRAINED AT BOTH ENUS) OR A PLAIN ROUND STELL IIAR STOCK. LEAK AIR AFTER THIS LOAD IS SUSTAINED FOR AT LMST 10 SECONDS. BURST TEST WITH THE FAILING PRESSURE, DESCRIPTION OF FAILURE AND LOCATION REPORTED IN THE QUALIFICATION TEST REPORT. THE TIRE SIIALL NOT TIIE TIRE SHALL THEN BE SUBJECTED TO A IIYD
9、ROSTATIC TEST A - TAXI - TAKE-OFF - TAXI THE TIRE ON THE FLYWHEEL FOR 10,000 FEET AT 4,550 POUNDS LOAD AT 30 MPH. STOP THE FLYWHEEL UNDER FULL LOAD AND WITHIN TWO MINUTES ACCELERATE (SIMULATING TAKE-OFF) AT AN AVERAGE RATE 6.14 FT/SEC/SEC TO 184 MPH. SECONDS AND FURTHER DECREASED LINEARLY WITH TINE
10、TO 1,500 POUNDS AT THE END OF THE TAKE-OFF ROLL. PRESSURE SHALL BE 125 PSI. THE LOAD SHALL BE DECREASED LINEARLY WITH TIME FROM 4,550 POUNDS TO 3,200 POUNDS DURING THE FIRST 25 FLAT PLATE TEST B - LANDING TAXI - THE TIRE SHALL BE LANDED AGAINST THE FLYWHEEL ROTATING AT A PERIPHEBAL SPEED OF 150 HPH.
11、 THE AVERAGE DECELERATION RATE SHALL BE 2.9 FEETISECISEC FROH 150 Wil TO 130 MPH AND 10.91 FT/SEC/SEC FROH 130 MPH TO ZERO SPEED. THE LOAD SIULL BE INCREASED LINEARLY DURING THE INITIAL SECOND AFTER LANDING TO 4,000 POUNDS AND MAINTAIHED FOR THE NEXT NINE SECONDS. THEN FURTHER INCREASED DURING ONE S
12、ECOND TO 7,000 POUNDS, AND THEN REDUCED LINWRLY WITH TIME TO 6,000 POUNDS AT THE END OF THE LANDING ROLL. MINUTES) FROH THAT POINT AT 30 EIF“ AND AT 2,800 POUNDS LOAD UNTIL AN ADDITIONAL 10,000 FEET HAS BEEN COVERED. THE FLAT PLATE PRESSURE SHALL BE 125 PSI. THE TIRE IS TO CONTINUE ROLLING (WITHIN T
13、WO TEST C - REJECTED TAKE-E - TAXI THE TIRE ON THE FLYWHEEL FOR 10,000 FEET AT 4,550 POUNDS LOAD AT 30 E“. STOP THE FLYUHED, UNDER FULL LOAD AND WITHIN TWO NINUTES ACCELERATE THE FLYWHEEL AT AN AVERAGE RATE OF 6.14 FT/SEC/SEC TO 164 MPH. THEN INMEDIATELY DECELERATE AN AVERAGE RATE OF 3.91 FTISECISEC
14、 TO ZERO SPEED. LINEARLY WITH TIME FROM 4,550 POUNDS TO 2,000 POUNDS DURING THE FIRST 44 SECONDS, THEN INCREASED TO 5,000 POUNDS WITHIN ONE SECOND, THEN MAINTAINED AT 5,000 POUNDS FOR 12 SECONDS, THEN INCREASED TO 6.400 POUNDS WITHIN ONE SECOND, THEN MAINTAINED AT 5,000 POUNDS FOR 12 SECONDS, THEN I
15、NCREASED TO 6,400 POUNDS WITIIIN ONE SECOND, AND THEN REDUCED TO 6,000 POUNDS AT THE END OF THE REJECTION ROLL. TIIE REJECTION CYCLE TIME IS APPROXIMATELY 113 SECONDS. THE TIRE IS TO CONTINUE ROLLING (WITHIN TWO MINUTES) FROM THAT POINT AT 30 MPH AND AT 2,800 POUNDS LOAD UNTIL AN ADDITIONAL 10,000 F
16、EET HAS BEEN COVERED. THE LOAD SHALL BE DECREASED THE FLAT PLATE PRESSURE SHALL BE 125 PSI. AIR RETMTION - THE TIRE SHALL BE INFLATED TO A PRESSURE OF 400 PSI AND ALLOWED TO STAND FOR A PERIOD OF 12 HOURS AT WHICH TIE THE PRESSURE DROP DUE TO CROWlX SIULI. BE REPLACED. HOURS AT WIIICII TIMI( Till: P
17、RESSIIRI: SllA1.L U11 MIASIIHID AND TIIE TIRI: INSIIXII). THE TIRE 511ii1.1. THEN STAND FOR AN ADDITIONAL 24 TIII: AIR IRESSIIHR I.flSS P1UI.L NOT FXCEED 5 Pix CRNT ANI) III: *TIHI( AIIAI.I. NOT KIWAI. ANY AIIINAN(:E ANI) IWWIMMANX II:I+XTS SII:II AS SIIWALL w.isrI.:Rs, TRIM) SEIWIATIIIN, EIX:, qUAL
18、1FICATIN TEST REPORT - 1111: 1lAl.lVlAliN KS ii1:liIU SIIAIJ. LISP lIll: RISll1,S ill: Alal. IIIAI,IIIiAIiN lXS ANI) 1111: CONSTRUCTION DETAILS OF TIIE QUALIFICATION TIXI SAEIILE IN TIIE GENERAL VORM SIIOW IN FlGURE 6 AND 7 OF MIL-T-5041 WITHDIMENSIONS LISTE0 AT RATED INFLATION. LIST THE ACTUAL DIME
19、NSIONS WHEN THE TIRE IS INFLATED T 400 PSI, OF THE QUALIFICATION TEST REPORT, TOCETHER WITH THE DATA AND MATERIAL SPECIFIED ABOVE AND IN MIL-T-5041 TO TME NAVAL AIR SYSTEMS COMMAND, WASHINGTON, D.C. 20361. ATTENTION: AIR-53032 IN ADDITION, IT SHALL ALSO SUBMIT TWO (2) COPIES NOTES: 1. REFERENCED MCU
20、WTS SHALL BE OF THE ISSUE IN EFFECT OR DATE OF INVITATION FOR BIDS. OR REQUEST FOR PROPOSAL EXCEPT THAT REFERENCE ADOPTED INDUSTRY STANDARDS SHALL GIVE THE DATE OF THE ISSUE ADOPTED, FOR DESIGN FEATURE PURPOSES, THIS STANDARD TAKES PRECEDENCE OVER PROCUREMENT WCUMENTS REFERENCED IIEREIN. 2. mm REVISED AND RERAWN Y D L (u u 3 r -. C i d 2 . U L O n i J 3 3 v i 2 L - Licensed by Information Handling Services
