Recommended websites for posting student IGC files?

On Monday, June 10, 2019 at 9:02:10 AM UTC-4, Dan Daly wrote:
...

If they upload to OLC, it modifies (shrinks) the file for storage; this modification violates the security of the file, so it cannot be used for badge claims.

- that hasn't been my experience. I tried just now, downloaded from OLC a flight log from my FLARM that I uploaded earlier, and compared with the original, the two are identical. Except for the name of the file - OLC converts it to the short IGC file name standard, which shouldn't affect anything. (Yes the FLARM also uses that short file name format, but when Tophat extracts the file from the FLARM it gives it the longer name.)

- perhaps OLC shrinks files that have more frequent records? E.g., one per second, which is more often than is necessary. My FLARM is configured to save a record every 4 seconds.

On Monday, June 10, 2019 at 11:44:03 PM UTC-4, wrote:
On Monday, June 10, 2019 at 9:02:10 AM UTC-4, Dan Daly wrote:
...

If they upload to OLC, it modifies (shrinks) the file for storage; this modification violates the security of the file, so it cannot be used for badge claims.

- that hasn't been my experience. I tried just now, downloaded from OLC a flight log from my FLARM that I uploaded earlier, and compared with the original, the two are identical. Except for the name of the file - OLC converts it to the short IGC file name standard, which shouldn't affect anything. (Yes the FLARM also uses that short file name format, but when Tophat extracts the file from the FLARM it gives it the longer name.)

- perhaps OLC shrinks files that have more frequent records? E.g., one per second, which is more often than is necessary. My FLARM is configured to save a record every 4 seconds.

Try to validate the OLC file with http://vali.fai-civl.org/validation.html ..

Try to validate the OLC file with http://vali.fai-civl.org/validation.html .

Very interesting: I just checked my .igc files from two flights on the above link, and for each flight one file was created by the CAI302 logger and one created by XCSoar. In both cases the XCSoar PASSED (?!) while the CAI file got an ERROR mark. How come? It says:

result ERROR
status ERR_UNSUPPORTED
msg IGC program not supported - CAM
igc 2018-07-29-CAM-45Q-01.igc
ref 4
server Open Validation Server 3.03

It may have to do with the long name of the CAI file as created by the XCSoar used to download it from the flight computer.

On Tuesday, June 11, 2019 at 6:52:30 AM UTC-4, Dan Daly wrote:
On Monday, June 10, 2019 at 11:44:03 PM UTC-4, wrote:
On Monday, June 10, 2019 at 9:02:10 AM UTC-4, Dan Daly wrote:
...

If they upload to OLC, it modifies (shrinks) the file for storage; this modification violates the security of the file, so it cannot be used for badge claims.

- that hasn't been my experience. I tried just now, downloaded from OLC a flight log from my FLARM that I uploaded earlier, and compared with the original, the two are identical. Except for the name of the file - OLC converts it to the short IGC file name standard, which shouldn't affect anything. (Yes the FLARM also uses that short file name format, but when Tophat extracts the file from the FLARM it gives it the longer name.)

- perhaps OLC shrinks files that have more frequent records? E.g., one per second, which is more often than is necessary. My FLARM is configured to save a record every 4 seconds.

Try to validate the OLC file with http://vali.fai-civl.org/validation.html .

In the test I made the two files (before upload to OLC, and after download back from OLC) are byte-by-byte identical (fc /b).

If any validation software gets hung up on the name of the file, instead of the contents of the file, that would be possible but rather silly, since the file name can be changed manually at any time with no security, while all the needed info is in the file contents which are protected against any manipulation by the digital signature.

I put the club on soaringlab.eu and signed up for the PRO version. FlarmView has a menu option to download flights to the PF USB. Don't see that on Butterfly - the glider has both displays.

At the end of day I can capture the IGCs from FV menu and upload to soaringlab.eu.

When I have time I can use the flight sheet to identify the pilots.

Crosscountry.aero is in my opinion the best online analysis tool and online logbook. You can choose between the free subscription to a paid one with more functionality.
I am surprised no one mentioned it and why it is not more popular.
OLC is the best sharing tool.

Ramy

On Wednesday, June 12, 2019 at 10:57:15 PM UTC-4, George Haeh wrote:
I put the club on soaringlab.eu and signed up for the PRO version. FlarmView has a menu option to download flights to the PF USB. Don't see that on Butterfly - the glider has both displays.

At the end of day I can capture the IGCs from FV menu and upload to soaringlab.eu.

When I have time I can use the flight sheet to identify the pilots.

George - on Butterfly, push the button to bring up the menu. Move to "FLARM". Scroll down to "Download IGC". Push button. File downloads to USB. Shows a bar filling up. Takes a couple of seconds depending on the size of the file. Not documented in the last manual I downloaded, unfortunately.

Hi Dan,

It's been about 7 years with the Butterfly that I didn't spot that. Good work!

I also found a new to me feature on the butterfly display for Powerflarm core, if you hold down and turn the display knob it changes the range of the display from my config file default of 6 miles to 4 or 2 miles. I had previously thought it only was adjustable thru the config file