AIRPORT PLANNING MANUAL 2 NOTES: H38 X 13−18 TIRE SIZE − TIRES PRESSURE AT 9.14 kgf/cm (130 psi) SUBGRADE STRENGHT − CBR 3 4 5 78 10 20 30 6 9 WEIGHT ON MAIN LANDING GEAR (kg) (lb) 34008 (74975) 32300 (71209) 29328 (64657) 27062 (59661) 19388 (42743) 10000 COVERAGES (USED FOR ACN CALCULATIONS) ANNUAL DEPARTURES 1200 3000 6000 15000 25000 3 4 5 67810 20 30 9 FLEXIBLE PAVEMENT THICKNESS (in.) 89 20 30 40 50 60 80 10 70 FLEXIBLE PAVEMENT THICKNESS (cm) EM170APM070001A.DGN Flexible Pavement Requirements - US Army Corps of Engineers Design Method Figure 7.5 EFFECTIVITY: EMBRAER170LRORSUORSE Section 7 ACFTMODEL Page 7-7 Jul 01/05 w-apm1346