CONTROLLED AND UNCONTROLLLED AIRSPACE

Controlled and UnControlled Airspace

Controlled Airspace is airspace of defined dimensions within which ATC services provided.The level of control varies with the different classes of airspace.Controlled airspace ussualy imposes higher weather minimums than are applicable in uncontrolled airspace.

a)      Aerodrome Traffic Zone(ATZ),the airspace with the provision:

1.       Have vertical with the upper limit 4000 Ft(above ground level) and,the lower limit ground/water

2.       Have lateral with 5 NM or the vicinity of aerodreme

b)      Control Zone(CTR),the airspace with the provision:

3.       Have vertical with the upper limit FL 100 and,,the lower limit ground/water

1.       Have a lateral limit adjusted to take into consideration the teleciommunication facilities flight and operational needs

c)       Terminal Control Area(TMA),the airspace with the provision:

2.       Have vertical with the upper limit FL 245 and,,the lower limit FL 100

3.       Have a lateral limit adjusted to take into consideration the teleciommunication facilities flight and operational needs

d)      Control Area(CTA),),the airspace with the provision:

1.        Have vertical with the upper limit FL 600,thr lower limit FL 245

2.       The lateral limit is adjusted to FIR

UnControlled airspace is airspace when ATC service not deened necesassry or cannot provided for partical reason.according to the airspace classes set by ICAO,both class F and class G airspace are uncontolled airspace

a)      Flight Informationn region (FIR)the airspace with the provision :

                                        1.have vertical with the upper limit FL 245 and,the lower limit ground/water

                 2.the lateral  limit adjusted FIR

b)      Aerodrome Flight Information Zone (AFIZ),)the airspace with the provision :

1.       Have vertical with the upper limit 4000 Ft(above ground level) and,the lower limit ground/water

2.       Have lateral with 5 NM or the vicinity of aerodrome