Question

On the Minneapolis MN area IFR chart, the WINONA VOR information box has a "T" in parenthesis next to the facility name, which indicates a limitation on pilot use of this facility. What is that limitation?

1) The T next to the name has significance for air traffic controllers, but no significance for pilots.
2) The limitation is the Service Volume of this Terminal VOR, or range of the facility. Signals may not be useable beyond 25 NM or above 12,000 feet AGL.
3) It indicates a VOR that may go out of service without notice, although the FAA will issue a NOTAM as quickly as possible.
4) The facility is a Temporary VOR and may be subject to occasional outages without notice beyond a NOTAM.

Answer 1

The 'T' in parenthesis next to the WINONA VOR on the Minneapolis MN area IFR chart indicates that it's a Terminal VOR with a service volume limitation, meaning signals may not be usable beyond 25 NM or above 12,000 feet AGL.

Step-by-step explanation:

When looking at the Minneapolis MN area IFR chart, and you find a "T" in parenthesis next to the WINONA VOR information box, this symbol indicates a limitation on pilot use of this facility. The correct interpretation of the "T" symbol is option 2: the limitation is the Service Volume of this Terminal VOR, or the range of the facility.

The 'T' in parenthesis next to the WINONA VOR on the Minneapolis MN area IFR chart indicates that it's a Terminal VOR with a service volume limitation, meaning signals may not be usable beyond 25 NM or above 12,000 feet AGL. This means that signals may not be usable beyond 25 nautical miles (NM) or above 12,000 feet above ground level (AGL). This limitation is crucial for pilots to understand to ensure the accuracy of their navigation when in the vicinity of the Winona VOR.