AIRPORT PLANNING MANUAL 4.5. RUNWAYANDTAXIWAYDIMENSIONS To determine the minimum dimensions for runway and taxiway where the aircraft can be operated, the reference code of the aircraft must be determined. The reference code of a specific aircraft is obtained in accordance with the Aerodrome Design and Operations - Volume 1, by the ICAO. Thecodeiscomposedoftwoelementswhicharerelatedtotheaircraft performance characteristics and dimensions: • Element 1 is a number based on the aircraft reference field length. • Element 2 is a letter based on the aircraft wingspan and outer main landing gear wheel span. The table below shows the reference codes: Table 4.1 - Reference Codes CODEELEMENT1 CODEELEMENT2 CODE AIRCRAFT REFERENCE CODE WINGSPAN OUTERMAINLANDING NUMBER FIELD LENGTH LETTER GEARWHEELSPAN 1 Less than 800 m A Up to 15 m Up to 4.5 m (2624 ft 8 in) (49 ft 3 in) (14 ft 9 in) 2 800 m (2624 ft 8 in) up to B 15 m (49 ft 3 in) to 4.5 m (14 ft 9 in) to 1200 m (3937 ft) 24 m (78 ft 9 in) 6 m (19 ft 8 in) 3 1200 m (3937 ft) up to C 24 m (78 ft 9 in) to 6 m (19 ft 8 in) to 1800 m (5905 ft 6 in) 36m(118ft1in) 9 m (29 ft 6 in) 4 1800 m D 36m(118ft1in)to 9 m (29 ft 6 in) to (5905 ft 6 in) and over 52 m (170 ft 7 in) 14 m (45 ft 11 in) __ __ E 52 m (170 ft 7 in) to 9 m (29 ft 6 in) to 65 m (213 ft 3 in) 14 m (45 ft 11 in) In accordance with the table, the reference code for the EMBRAER 170STD and 170LR is 3C. NOTE: • Classification considering CF34-8E5A1 engines. • This classification may change depending on aircraft engine model and takeoff weight. With the reference code it is possible to obtain the limits of the runway and taxiway where the aircraft can be operated. For reference code 3C the limits are: • The width of a runway should not be less than 30 m (98 ft 5 in). • The width of a taxiway should not be less than 15 m (49 ft 2 in). • Thedesign of the curve in a taxiway should be such that, when the cockpit remains over the taxiway center line marking, the clearance distance between the outer main landing gear wheels of the aircraft and the edge of the taxiway should not be less than3m(9ft10in). • The clearance between a parked aircraft and one moving along the taxiway in a holding bay should not be less than 15 m (49 ft 3 in). EFFECTIVITY: ALL Section 4 Page 4-5 Oct 07/08 w-apm1346