There is a problem using 52.525 MHz. It will only work with later radios that have 25KHz tuning steps. Most older US ex-Military radios will not tune this frequency, as they have only 50KHz steps. This includes US radios like the PRC-25, PRC-77, VRC-12, RT-524. Unfortunately, these are amongst the most popular radios in the hands of MV collectors.
I would suggest 51.000MHz, as it will work with most all post WWII VHF Military radios. If you are using commercial or ham gear, us PL tone (CTCSS) of 150.0 Hz or 151.4 Hz, set to 1KHz tone deviation.
If you happen to live in East Tennessee, the Knoxville Military Vehicle Collector's (KMVC) have been having a regular Net on 51.000 MHz on Sundays at 1900Z or 1500 Eastern time. Most of us operate from our Green radios.
Garret
W8BUG
Link to Packset Frequencies:
http://hfpack.com/air/