In my ClearNav II flight computer's wind speed/direction box, it gives the wind speed as (for example) "16 fc". I would expect "16 kts", or just "16". What the heck is an "fc"?“f" indicates CN II is communicating with FLARM. “c" indicates CN II is communicating with a Cambridge 302
On Thursday, May 25, 2023 at 3:48:03 PM UTC-6, cjk wrote:
In my ClearNav II flight computer's wind speed/direction box, it gives the wind speed as (for example) "16 fc". I would expect "16 kts", or just "16". What the heck is an "fc"?“f" indicates CN II is communicating with FLARM. “c" indicates CN II is communicating with a Cambridge 302
On Thursday, May 25, 2023 at 5:12:59 PM UTC-5, carbonprop wrote:
On Thursday, May 25, 2023 at 3:48:03 PM UTC-6, cjk wrote:Thanks! While I do have FLARM, I don't have a Cambridge 302. Do you suppose the CN II displays "c" because it's communicating with my ClearNav vario?
In my ClearNav II flight computer's wind speed/direction box, it gives the wind speed as (for example) "16 fc". I would expect "16 kts", or just "16". What the heck is an "fc"?“f" indicates CN II is communicating with FLARM. “c" indicates CN II is communicating with a Cambridge 302
Is the wind speed/direction calculation more accurate because CN II is getting data from FLARM &/or a vario? I would think the CN II itself would have all of the inputs for that calculation, without getting data from another device...
On Friday, May 26, 2023 at 9:32:10 AM UTC-4, cjk wrote:
On Thursday, May 25, 2023 at 5:12:59 PM UTC-5, carbonprop wrote:
On Thursday, May 25, 2023 at 3:48:03 PM UTC-6, cjk wrote:Thanks! While I do have FLARM, I don't have a Cambridge 302. Do you suppose the CN II displays "c" because it's communicating with my ClearNav vario?
In my ClearNav II flight computer's wind speed/direction box, it gives the wind speed as (for example) "16 fc". I would expect "16 kts", or just "16". What the heck is an "fc"?“f" indicates CN II is communicating with FLARM. “c" indicates CN II is communicating with a Cambridge 302
Is the wind speed/direction calculation more accurate because CN II is getting data from FLARM &/or a vario? I would think the CN II itself would have all of the inputs for that calculation, without getting data from another device...CNv shows as a 302; do a declaration to the CNv and it shows as C302. I like that they adopted something that worked when they designed it.
Actually, an important part of your pretakeoff checklist ought to be to make sure the clarnav does show "fc." It's possible that it doesn't make connection with flarm or vario, and if so you need to recycle power.
John Cochrane
Actually, an important part of your pretakeoff checklist ought to be to make sure the clarnav does show "fc." It's possible that it doesn't make connection with flarm or vario, and if so you need to recycle power.
John Cochrane
The "fussiness" of the power on sequence is driven by software in the ClearNav flight computer. It polls the serial ports roughly 40 seconds after switch on and if there is nothing on the port, it does not poll it again.continuous (less whatever period of time CN is shut down) and fight log will be secure an valid.
Once com is established, the peripheral device may be power cycled at will, CN will pick it up as soon as it becomes available again.
If you have some sort of problem in flight that requires power cycling CN flight computer, all current flight information and the flight log is saved (continuously) and will be restored on reboot. Task statistics included. Flight log will be
This is the latest info I have, it may have been changed in the latest release....
Stephen
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