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Recording Flight Data

Postby dalemed » Sat Mar 14, 2015 6:59 pm

I've started taxi testing my homebuilt in preparation for the First Flight. I like the idea of recording flight and engine parameters from the Sport SX EFIS and EIS 4000.

I've set up Demo mode to capture 6M of data with manual start and stop.

I tried a sample run in the hangar (without the engine running) and the unit started recording when I selected DEMO Start, and save a .log file to the memory stick when I selected DEMO Stop.

I then pushed the plane out, started the engine, let the EFIS go thru it's startup cycle, and pressed DEMO Start. The EFIS displayed a "started recording" (or something like that). After taxiing for 15 minutes (high speed, tailwheel off the ground, yahoo!), I shut down the enging but left the EFIS powered on. When I selected "DEMO Stop" the EFIS kept displaying the message "Waiting for USB Device". I couldn't get the data to record to the stick. I even unplugged the stick and reinserted it, but still it kept "waiting...".

Any ideas what I'm doing wrong? Does it have something to do with the amout of data I'm trying to log?

Thanks for any help! I want this working before my first flight!!

Dale
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Re: Recording Flight Data

Postby Bobturner » Sat Mar 14, 2015 7:54 pm

Sounds like the stick is too full.???
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Re: Recording Flight Data

Postby dalemed » Sat Mar 14, 2015 9:03 pm

I have about 1.7G left on the stick. Plenty of space.
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Re: Recording Flight Data

Postby jclark » Sun Mar 15, 2015 12:41 am

dalemed wrote:I have about 1.7G left on the stick. Plenty of space.


Try removing and re-inserting the memory stick.

Then try another stick.
Sometimes the EFIS simply does not "see" the stick or for some reason is unable to "read or write" to it.

Not often, but I have seen that before.

James
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Re: Recording Flight Data

Postby Bobturner » Sun Mar 15, 2015 1:33 am

That's right. I had a stick but after using it to move files from a PC to a Mac it wouldn't work on the EFIS anymore....??
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Re: Recording Flight Data

Postby dalemed » Sun Mar 15, 2015 1:02 pm

jclark wrote:
dalemed wrote:I have about 1.7G left on the stick. Plenty of space.


Try removing and re-inserting the memory stick.

Then try another stick.
Sometimes the EFIS simply does not "see" the stick or for some reason is unable to "read or write" to it.

Not often, but I have seen that before.

James


Thanks! I'lll give that a try.

How long should it take to transfer 6M of data from the efis to the stick? Maybe I'm not waiting long enough.

Dale
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Re: Recording Flight Data

Postby Bobturner » Sun Mar 15, 2015 7:39 pm

The internal memory can only hold so much data. It will then dump that to the stick, then start over again. So during a long flight you'll see several dumps with small gaps between them. How long depends on how much data you're collecting and how often. I think mine (HX) dumps to the stick about every 15 minutes. I think the "write" was less than a minute. BTW, search the "new features" or "this weeks column" or something like that. The latest software can be set to record and write automatically.
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Re: Recording Flight Data

Postby GRT_Jeff » Fri Mar 27, 2015 12:41 am

If the EFIS says "Waiting for USB device" that means it doesn't see the stick. An SX normally finds the stick within 10 seconds. If it takes longer than that, you might need to remove the stick for 10 seconds and then try again. Every once in a while I've seen a display get into a strange condition where it doesn't see the stick until you reboot.
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