Is there a list that shows what some of the possible remarks are? I see all sorts of things, and obviously some are "non-standard" but I was wondering what is usually written there.

Take a look at the prc (Pilot Resource Center). This is discussed in section 122 - First Flight on VATSIM.http://usa-w.vatsim.net/prc/VPTPublic/122/122a/122a.htm Look at the 12th step in the section showing how to fill out the flight plan:12) Remarks: Add appropriate remarks, such as "Newbie - First Flight",

I normally use them only for information that can help controllers, like when I can't use voice or have special cargo like life animals.Other than that, I leave the field empty.

scroll to the bottom of this link:http://www.faa.gov/ats/aat/ifim/ifim0107.htm

"Any other plain language remarks when required by the appropriate ATS authority or deemed necessary."rather broad :)

Often I use the ICAO standard abbreviations to discribe what my aircraft capabilities are, and perhaps my callsign if it is something different to what the letters in my callsign might say. For instanceSAA130 H/B744/QRemarks:OPR/SOUTHAFRICAN RT/SPRINGBOK PER/D NAV/RNP4 REG/ZSSBS CHARTS/AVLBwhich is to sayIm Operating a South African Airways flight, my Radio Callsign is "Springbok", My aircraft is a Performance Category D aircraft (approach speed of 146kts - 160kts) I am operating with Required Navigation Performance category 4 (3IRS units and GPS or GNSS, 2 altimeters and a standby, etc with the requirement to remain 4nm within course)My Aircraft Registration is ZS-SBS, and I have charts.When I log in with my aircraft set in SB3, My remarks will be added to by SB3 depending on what I select in regards to voice and what Selcal I have set up on the aircraft I selected. In this case the eventual remarks field (as shown on servinfo or ASRC) will be as such:/V/ SEL/MPAR OPR/SOUTHAFRICAN RT/SPRINGBOK PER/D NAV/RNP4 REG/ZSSBS CHARTS/AVLBThe extra items being /V/ for Voice capacity, and SEL/MPAR which is the SELCAL code for my aircraft (which is used in Oceanic airspace in HF radio coverage, when a controller uses the SELCAL option with my code (MPAR) an audio cue will go off alerting the pilot that a controller is contacting him on SELCAL. If he sends another code (say EMKS) you will only hear the SELCAL without the alert.Sometimes, If I think Im in an area where theyre not expecting pilots to have charts and such, I might put the CHARTS/AVLB right at the front of the list of things. If Im in an area where Charts are the norm, I might even omit it entirely.