@loft:
i m not very much convinced by your explanation for quadrantal and semicircular levels
well if u see the options its clearly mentioned climb or descent by 500 feet
concentrate on 500 feet
so here basically they are saying that quad and semicircular level co exists
so if u r flying on track say 130 degrees then u will fly odd+500 for quad suppose 5500
now if u want to choose semicircular level then u have to descend to 5000 feet
that is descend by 500 feet since u need to go to an odd level
so from quad to semicircular u need to descend by 500 feet
well thats wat i think and have seen the same answer in a book too
and regarding the at routes i did confirmed and yes its class f for ats routes
also ats routes are classified as class e airspace also which are not in class f
now regarding the validity of flight plan its highly possible that the person mite have remembered uncontrolled aerodrome instead of uncontrolled flight so its better if we use 1 hour because it can be a typing error too
Last edited by avalanche007; 23rd Jun 2010 at 08:59.