Como as operações devem ser conduzidas em um aeroporto de grande altitude que esteja em um espaço aéreo não controlado?

Aeroporto com uma torre de controle operacional = fale com ele.

Dos regulamentos:

§91.126 (d) (refere-se à Classe G) e §91.127 (c) (refere-se à Classe E) são idênticos.

Communications with control towers. Unless otherwise authorized or required by ATC, no person may operate an aircraft to, from, through, or on an airport having an operational control tower unless two-way radio communications are maintained between that aircraft and the control tower. Communications must be established prior to 4 nautical miles from the airport, up to and including 2,500 feet AGL. However, if the aircraft radio fails in flight, the pilot in command may operate that aircraft and land if weather conditions are at or above basic VFR weather minimums, visual contact with the tower is maintained, and a clearance to land is received. If the aircraft radio fails while in flight under IFR, the pilot must comply with §91.185.

Trate uma classe E ou classe G como se fosse Classe D. As únicas diferenças são mínimos VFR básicos, área indefinida de 4nm e procedimentos IFR