AIRPORT PLANNING MANUAL FLEXIBLE PAVEMENT SUBGRADE NOTES: H38 x 13−18 TIRE SIZE 2 TIRE PRESSURE 9.14 kgf/cm (130 psi) (UNLOADED) 45 40 SBGRADE STRENGTH 35 ULTRAQ LOW − CBR=3% LOW − CBR=6% MEDIUM−CBR=10% HIGH−CBR=15% 25 20 15 10 AIRCRAFT CLASSIFICATION NUMBER−ACN5 MAXIMUM RAMP WEIGHT 0 20000 22000 24000 26000 28000 30000 32000 34000 36000 38000 37360 AIRCRAFT GROSS WEIGHT−kg 44000 48000 52000 56000 60000 64000 68000 72000 76000 80000 84000 AIRCRAFT GROSS WEIGHT−lb EM170APM070004A.DGN ACNFor Flexible Pavement Figure 7.15 EFFECTIVITY: EMBRAER170LRORSUORSE Section 7 ACFTMODEL Page 7-21 Oct 06/11 w-apm1346