Recent Posts

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Customer Support / Re: ClearNav Upgrade
« Last post by NMayes on February 09, 2018, 12:22:45 PM »
Upgrades from the CNI to the CNII are still available. 

Current price for the upgrade is $1200.
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Customer Support / ClearNav Upgrade
« Last post by SteveB_Z5 on February 06, 2018, 11:41:06 AM »
I'm shopping for a newer glider and I'm see some gliders for sale with ClearNav 1.  Is it still possible to get the upgrade to ClearNav 2?  Still $1000?
Thanks,
Steve
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CNv Discussion / Re: CNv - Can it be "sealed" without sending the ADC In
« Last post by SteveB_Z5 on February 04, 2018, 11:49:22 AM »
After yesterdays flight I downloaded Saturdays and Wednesdays flights along with what looks to be a test post upgrade at Williams.  Success!  This was using the same Scandisk stick after moving all the other CN stuff on the stick into a folder.  So was having my profile and and last firmware update in the top level of the stick the reason for the error message.  I didn't try the Scandisk stick that looked to have worked on Wednesday but had no file.  I''l try that the next time.
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CNv Discussion / Re: CnV Troubleshooting Wind Errors
« Last post by Pappa3 on February 03, 2018, 09:05:01 AM »
I understand the basic physics, so I understand that a couple of knots won't make a big difference in the wind readings.    Regarding "doing it wrong",  I did as instructed and let the instrument warm up for 20 minutes or more.   It was actually almost EXACTLY an STP day outside (55F and about 29.89 "hg when I started),  so I wasn't working in a meat locker.   Not sure what would be wrong with taping over the ports vs working in still air -  'splain me Lucy.    As it was, winds were more or less calm but there was a 2-3 kt zephyr every now and then... 

P3
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CNv Discussion / Re: CNv - Can it be "sealed" without sending the ADC In
« Last post by Evan Ludeman / T8 on February 02, 2018, 04:32:01 AM »
Hi Steve,

If there's a problem with your CNv, I am certain Williams will take care of you. 

I've never had a case when CNv reported a successful d/l and there was no file on the USB.  But in general I've had a lot more trouble with USB drives than I have had with CNv. 

All of the "small" computer devices I've ever used, CNv included, are "fussier" about USB drives than my desktop and laptop computers. 
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CNv Discussion / Re: CNv - Can it be "sealed" without sending the ADC In
« Last post by SteveB_Z5 on February 01, 2018, 07:43:00 PM »
I sent my early (SN V22) ADC in for the hardware up grase and had my first flight with it yesterday.  When I went to down load the flight file with my Scandisk CNV memory stick I got a error message.  I had a second memory stick so tried that one.  The graph showed the file loading onto the Scandisk stick.  when I got home there was no file on the stick.  Great!  Do I need to bring a laptop with me to see if the file really loaded?  I can tell you I'm pretty damn disappointed.

Steve
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CNv Discussion / Re: CnV Troubleshooting Wind Errors
« Last post by SteveB_Z5 on February 01, 2018, 07:35:18 PM »
"It's completely counter productive to do this wrong.  The instrument needs to be fully warmed up (20 minutes at least), you need to be in completely still air. "

When I was talked though this last year this warm up was now mentioned at all.
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CNv Discussion / Re: CNv - Can it be "sealed" without sending the ADC In
« Last post by Evan Ludeman / T8 on January 31, 2018, 08:38:43 PM »
No.

Send it in.  I think one of the reasons you are having problems is that you don't have the hardware updates that everyone else has in their ADC. 
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CNv Discussion / Re: CnV Troubleshooting Wind Errors
« Last post by Evan Ludeman / T8 on January 31, 2018, 08:36:35 PM »
If you want the zero-ing instructions published, the guy to ask is Rex.  Back when, I was specifically asked not to do that. 

It's completely counter productive to do this wrong.  The instrument needs to be fully warmed up (20 minutes at least), you need to be in completely still air.  You should not tape over the ports. 

Also -- do not obsess over this.  5 kts error at zero airspeed is not an issue and not worth zeroing out because it's within normal parameters for the sensors..  Basic physics here: air speed goes as the square root of dynamic pressure-static pressure.  A 5 kt IAS offset at zero yields an error of about 0.2 kts at 50 kts  (think I did that correctly). 

Back to the wind issue... it's my opinion that a gremlin crept into the code at some point and it's the number one issue I believe CN needs to address.  The initial release of CNv 2.0 had far better vector wind performance than what we are flying now.  Based on some correspondence today, I think we might see some action on this (finally). 

                                                                 
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CNv Discussion / Re: CnV Troubleshooting Wind Errors
« Last post by SteveB_Z5 on January 29, 2018, 05:25:33 PM »
P3,
I'm sure I'm not the only one who would like to get this, could you send a copy of the instructions for zeroing the sensors to sbralla @ san.rr.com?  My instruments are in the garage and when I looked at things a week ago I was seeing 0 to 5-6 knots.
Thanks,
Steve
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