[aprssig] VHF Aircraft Channels

[Robert Bruninga]

Hummh... We all have these radios that tune the
118-137 MHz AM aircraft band...  But what channels
are available to communicate plane to plane or
plane to ground?

Our aerospace department has a plane they fly
occasionally for flight studies.  What channel 
can I talk to them on to coordinate some GPS
experiements for example?  (That isnt too 
crowded)

Here is the list I got on the web, I'm hoping
someone private pilots out there have made
ssense of all of this an can cut to the chase...

121.500             Emergency Search and Rescue (ELT Operational 
121.600 - 121.925   Airport Utility and ELT Test
121.950             Aviation Instructional and Support
121.975
118.000 - 121.400   Air Traffic Control, FSS Private Aircraft Advisory
122.000 - 122.050   En Route Flight Advisory Service (EFAS)
122.075 - 122.675   FSS Private Aircraft Advisory
122.700 - 122.725   UNICOM - Uncontrolled Airport and Aeronautical Utility
122.750             Aircraft Air-to-Air
122.775             Aviational Instruction and Support
122.800             UNICOM - Uncontrolled Airport
122.825             Domestic VHF
122.850             Multicom - Special Use/Aviation Support (Non Interference Basis)
122.875             Domestic VHF
122.900             Multicom
122.925             Multicom - Natural Resources
122.950             Unicom - Airport with full time ATCT or full time FSS
122.975 - 123.000   Unicom - Uncontrolled Airport
123.025             Helicopter Air-to-Air
123.050 - 123.075   Unicom - Uncontrolled Airport
123.100             Aeronautical Search/Rescue, Temporary Control Tower on secondary basis
123.125 - 123.275   Flight Test Stations
123.300             Aviation Support
123.325 - 123.475   Flight Test Stations
123.500             Aviation Support
123.525 - 123.575   Flight Test Stations
123.600 - 123.650   FSS Air Carrier Advisory
123.675 - 128.800   Air Traffic Control
126.200             Air Traffic Control (Military Common)
128.825 - 132.000   Domestic VHF (Operational Control)
132.025 - 135.825   Air Traffic Control
134.100             Air Traffic Control (Military Common)
135.850             Flight Inspection Use
135.875 - 135.925   Air Traffic Control
135.950             Flight Inspection Use
135.975 - 136.075   Air Traffic Control
136.100             Future Use UNICOM or AWOS
136.125 - 136.175   Air Traffic Control
136.200             Future Use UNICOM or AWOS
136.225 - 136.250   Air Traffic Control
136.275             Future Use UNICOM or AWOS
136.300 - 136.350   Air Traffic Control
136.375             Future Use UNICOM or AWOS
136.400 - 136.450   Air Traffic Control
136.475             Future Use UNICOM or AWOS
136.500 - 136.975   Domestic VHF (Operational Control and Special Purpose)

Thanks, Bob