Departing a Class G airport, with less than VFR conditions, and expecting VFR before hitting controlled airspace at 700AGL is dubious. The vest majority of my IFR flights in uncontrolled airspace, that were without benefit of clearances, were where there are large areas of uncontrolled airspace, and safe IFR altitudes could be flown enroute. The fact that the student pilot is flying in the traffic pattern is irrelevant in this context; however, for certified pilots, there is an exception to basic VFR weather minimums in Class G airspace that allows a pilot to operate with a minimum of 1 mile of flight visibility in Class G airspace at night as long as the airplane remains within ½ Class F. A low level air route is an example of Class ____ airspace, and a high level airway is an example of Class _____ airspace. *. G, A. The basic obstacle protection area of an RNA T-Route is. 4 NM either side of the centreline. For a VFR flight at 12,500 feet ASL, if no specific instructions are given by ATC, the transponder should be set to. Class F is not used. Class G airspace is defined wherever Class A and Class C airspaces are not defined. Class G airspace allows IFR and VFR operations. For altitudes less than 3,000 metres (9,800 ft) the speed must not exceed 450 kilometres per hour (280 mph; 240 kn). Flights are provided with flight information service as requested. IFR Class G airspace is considered uncontrolled airspace, and it is important for pilots to be aware of the visual flight rules (VFR) minimums when flying in this type of airspace. VFR minimums refer to the specific criteria that pilots must meet in terms of visibility and cloud clearance when operating an aircraft under visual flight rules. Once you go above 10,000', speeds increase. So, to provide enough time to see and avoid aircraft, your weather minimums increase, too. Class E Altitudes. The toughest part about Class E airspace may be recognizing where it starts. It seems to start at random altitudes all over the map, but there's logic to it. Class E Enroute Airspace Remember that this is a minimum fuel reserve, not a target for flight planning. Prudent pilots always carry more than the minimum to better accommodate potential problems. FAR 91.155—VFR visibility requirements in Class G airspace increase from 1 mile in daytime to 3 miles at night. (3) In Class G airspace, IFR departures with visual transitions are authorized only after the pilot in command determines that the weather conditions at the departure point are at or above takeoff minimums depicted in a published departure procedure or VFR minimum ceilings and visibilities in accordance with § 135.609. * * * * * While in areas designated as Class D airspace, pilots must: Adhere to Class D weather minimums. Have a functional two-way radio onboard. Establish two-way ATC radio communication prior to entering the airspace. Maintain two-way communication with ATC while in the airspace. Follow speed restrictions. Class E airspace merely requires increased weather standards for VFR operation, compared to Class G airspace; it does not imply being in contact with air traffic control or seeking permission to enter. The sectional chart legend shows a Class E boundary with a blue shading on the side containing Class E airspace from 1,200 feet upward. DnZmtm.