Flow Through Trml frequencies

Flow Through Trml (01MI) in Flint, MI has no control tower, so nobody is sequencing traffic here — you announce your own position on 122.9. Every frequency below is in the order you tune it. · Open on the map

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Taxi & takeoff

CTAF 122.9
The common frequency pilots use to announce themselves to each other at a field with no operating control tower. Nobody is controlling traffic — you are self announcing. Report your position and intentions on entry and on each leg of the pattern, and listen well before you transmit.

What to say on 122.9

Nobody is sequencing traffic at 01MI, so every call is you telling other aircraft where you are. Open and close with the field name so a pilot tuned to a shared frequency knows which airport you mean — 122.9 is not unique to Flow Through Trml.

  • Inbound, 10 miles out Flow Through Trml traffic, Skyhawk one two three four five, one zero miles south, inbound landing, Flow Through Trml.
  • Entering the pattern Flow Through Trml traffic, Skyhawk one two three four five, entering left downwind , Flow Through Trml.
  • Before taking the runway Flow Through Trml traffic, Skyhawk one two three four five, departing , Flow Through Trml.

Pattern direction is not always left here — check the 01MI traffic pattern before you announce a leg. The Chart Supplement is authoritative if 01MI publishes a call name that differs from the airport's. Full guidance →

Every 01MI frequency, as one table
CTAF122.9

Frequently asked

What is the CTAF at 01MI?

Flow Through Trml is non towered. The common traffic advisory frequency is 122.9 — announce your position and intentions on entry and on each leg of the pattern.