[TowerTalk] TOWAIR query - proximity to airport, FCC and FAA registration

[Michael Germino]

I asked this question because I am off the end of a runway.  Using the TWAIR I am about 1000 feet farther away than when I use a manual calculation from the end of the runway.


Well for me either way,by hand or TOWAIR, my tower plans are OK.

So, right now my limitations are my budget.

Mike
AD6AA



van wd8aam wrote:
> You measure from the airport reference point (ARP) which is published for
> each airport.  It's the lat/long of the considered center of the airport.
>
>  
If you are off the end of a runway it's the distance to the threshold of 
that runway and they use a different (more stringent)  height criteria 
for that. "I believe" Tower Air only figures the ARP.

73

Roger (K8RI)
> Call the airport, and ask them for their ARP.
> Van Lincoln (retired FAA)
>
> At 22:51 4/3/2010, you wrote:
>  
>> Do you measure from the airport property line or the runway?
>>
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