What type of IFR approach is available at CYBE?

• A. ILS
• B. VOR
• C. RNAV
• D. NDB

Answer: (A)

IFR approaches fall into precision and non-precision categories, based on what navigation aids are available on the field. An ILS is a precision approach because it provides both lateral guidance (localizer) and vertical guidance (glide slope), allowing a pilot to descend to the runway with vertical guidance even in reduced visibility.

This is why ILS is the best answer for CYBE: the airport must have the necessary on-field equipment to publish a precision approach, which the other options—VOR, RNAV, and NDB—do not inherently provide when considered as standalone approaches. VOR and NDB approaches offer mainly lateral guidance (with some step-down fixes but no vertical guidance), while RNAV can offer vertical guidance only if a specific RNAV procedure (like LNAV/VNAV or LPV) is published for the field. If CYBE’s published IFR procedures include an ILS, that indicates the runway is equipped for a precision approach, making ILS the available type.