ClearNav Vario Spoiler Warning

I finally completed installation of my new CNv XC vario and am having
problems with the gear/spoiler warning logic.

In my installation, while sitting on the trailer, opening the spoiler
causes the Spoiler warning to flash and sound off. This happens without
respect to the gear position or switch reading. Reading the switches in
the Info section of the CNv, I see that both switches are correctly
wired and functioning (both show 0 and 1 status as appropriate).

Is it possible that this is a ground test function and I won't know if
everything works as intended until my first takeoff?
--
Dan Marotta

On Monday, February 2, 2015 at 4:11:24 PM UTC-8, Dan Marotta wrote:
I finally completed installation of my new CNv XC vario and am
having problems with the gear/spoiler warning logic.



In my installation, while sitting on the trailer, opening the
spoiler causes the Spoiler warning to flash and sound off.* This
happens without respect to the gear position or switch reading.*
Reading the switches in the Info section of the CNv, I see that both
switches are correctly wired and functioning (both show 0 and 1
status as appropriate).



Is it possible that this is a ground test function and I won't know
if everything works as intended until my first takeoff?


--

Dan Marotta

Is what you are seeing a "spoilers open" warning (during takeoff roll) vs. a "gear up" warning?

On Monday, February 2, 2015 at 9:21:53 PM UTC-5, wrote:
On Monday, February 2, 2015 at 4:11:24 PM UTC-8, Dan Marotta wrote:
I finally completed installation of my new CNv XC vario and am
having problems with the gear/spoiler warning logic.



In my installation, while sitting on the trailer, opening the
spoiler causes the Spoiler warning to flash and sound off.* This
happens without respect to the gear position or switch reading.*
Reading the switches in the Info section of the CNv, I see that both
switches are correctly wired and functioning (both show 0 and 1
status as appropriate).



Is it possible that this is a ground test function and I won't know
if everything works as intended until my first takeoff?


--

Dan Marotta

Is what you are seeing a "spoilers open" warning (during takeoff roll) vs.. a "gear up" warning?

Yes, exactly.

Evan Ludeman for CNi

Hi Dan

In case the rather shorthand answers have still left things unclear,
the system is working correctly for Gear and Spoiler Warnings
active.

In most ships you don't want to roll with spoilers open, so
have that warning active. Spoilers open, gear down, no
airspeed is a warning and SPOILERS will show on the screen.
For LS8/ASW24 or whatever where you want to roll with them
open until you have good roll control, disable the warning.

You will still get a warning (with Gear Warning enabled) if
you open spoilers with gear up. You can test the spoiler
warning function is correct by pressurising pitot to
50 knots, opening the spoilers should then give no warning
unless the gear is up.

Peter.

On Monday, February 2, 2015 at 4:11:24 PM UTC-8, Dan
Marotta wrote:
I finally completed installation of my new CNv XC vario and
am
having problems with the gear/spoiler warning logic.
=20
=20
=20
In my installation, while sitting on the trailer, opening the
spoiler causes the Spoiler warning to flash and sound
off.=A0 This
happens without respect to the gear position or switch
reading.=A0
Reading the switches in the Info section of the CNv, I see
that
bot=
h
switches are correctly wired and functioning (both show 0
and 1
status as appropriate).
=20
=20
=20
Is it possible that this is a ground test function and I won't
know
if everything works as intended until my first takeoff?
=20
=20
--=20
=20
Dan Marotta
=20
Is what you are seeing a "spoilers open" warning (during
takeoff roll)
vs=
.. a "gear up" warning?

Thanks Evan and Peter. If the winds are light enough to rig today, I'll
try it out.

Dan

On 2/3/2015 3:45 AM, Peter Purdie wrote:
Hi Dan

In case the rather shorthand answers have still left things unclear,
the system is working correctly for Gear and Spoiler Warnings
active.

In most ships you don't want to roll with spoilers open, so
have that warning active. Spoilers open, gear down, no
airspeed is a warning and SPOILERS will show on the screen.
For LS8/ASW24 or whatever where you want to roll with them
open until you have good roll control, disable the warning.

You will still get a warning (with Gear Warning enabled) if
you open spoilers with gear up. You can test the spoiler
warning function is correct by pressurising pitot to
50 knots, opening the spoilers should then give no warning
unless the gear is up.

Peter.

On Monday, February 2, 2015 at 4:11:24 PM UTC-8, Dan
Marotta wrote:
I finally completed installation of my new CNv XC vario and
am
having problems with the gear/spoiler warning logic.
=20
=20
=20
In my installation, while sitting on the trailer, opening the
spoiler causes the Spoiler warning to flash and sound
off.=A0 This
happens without respect to the gear position or switch
reading.=A0
Reading the switches in the Info section of the CNv, I see
that
bot=
h
switches are correctly wired and functioning (both show 0
and 1
status as appropriate).
=20
=20
=20
Is it possible that this is a ground test function and I won't
know
if everything works as intended until my first takeoff?
=20
=20
--=20
=20
Dan Marotta
=20
Is what you are seeing a "spoilers open" warning (during
takeoff roll)
vs=
.. a "gear up" warning?


--
Dan Marotta

In my book, warnings for take off roll and landing approach should be
audio, not on the panel. To divert your attention from outside risks a
ground loop or worse.
During takeoff, the only point at which I glance at the ASI
is after I have three axis control.
JMF

At 15:12 03 February 2015, Dan Marotta wrote:
Thanks Evan and Peter. If the winds are light enough to rig today, I'll
try it out.

Dan

On 2/3/2015 3:45 AM, Peter Purdie wrote:
Hi Dan

In case the rather shorthand answers have still left things unclear,
the system is working correctly for Gear and Spoiler Warnings
active.

In most ships you don't want to roll with spoilers open, so
have that warning active. Spoilers open, gear down, no
airspeed is a warning and SPOILERS will show on the screen.
For LS8/ASW24 or whatever where you want to roll with them
open until you have good roll control, disable the warning.

You will still get a warning (with Gear Warning enabled) if
you open spoilers with gear up. You can test the spoiler
warning function is correct by pressurising pitot to
50 knots, opening the spoilers should then give no warning
unless the gear is up.

Peter.

On Monday, February 2, 2015 at 4:11:24 PM UTC-8, Dan
Marotta wrote:
I finally completed installation of my new CNv XC vario and
am
having problems with the gear/spoiler warning logic.






In my installation, while sitting on the trailer, opening the
spoiler causes the Spoiler warning to flash and sound
off.=A0 This
happens without respect to the gear position or switch
reading.=A0
Reading the switches in the Info section of the CNv, I see
that
bot
h
switches are correctly wired and functioning (both show 0
and 1
status as appropriate).






Is it possible that this is a ground test function and I won't
know
if everything works as intended until my first takeoff?




--



Dan Marotta


Is what you are seeing a "spoilers open" warning (during
takeoff roll)
vs
.. a "gear up" warning?


--
Dan Marotta

On Tuesday, February 3, 2015 at 10:45:06 AM UTC-5, firsys wrote:
In my book, warnings for take off roll and landing approach should be
audio, not on the panel. To divert your attention from outside risks a
ground loop or worse.
During takeoff, the only point at which I glance at the ASI
is after I have three axis control.
JMF

Just to be clear on this: CNv provides both audio and visual. The visual message is more for setup and confirming all the switchology is correct.

Next release of CNv will offer the ability to defeat the spoilers open on takeoff warning for pilots that use spoilers on the take off roll and don't want the alarm going.

best,
Evan Ludeman for CNi

Will that warning suppression be groundspeed based so that protection is still given once the glider has accelerated through the initial, spoilers-out takeoff roll?

B3

"Next release of CNv will offer the ability to defeat the spoilers open on takeoff warning"

I am told that the way it will work is via an alarm silence function. So open spoilers (alarm sounds), push lower right button briefly to silence alarm, alarm resets when either gear or spoiler switch changes state. I like your airspeed idea better... I'll forward that.

-Evan Ludeman for CNi

On Tuesday, February 3, 2015 at 7:33:05 PM UTC-5, wrote:
Will that warning suppression be groundspeed based so that protection is still given once the glider has accelerated through the initial, spoilers-out takeoff roll?

B3

"Next release of CNv will offer the ability to defeat the spoilers open on takeoff warning"

Tango Eight wrote on 2/3/2015 5:34 PM:
I am told that the way it will work is via an alarm silence function.
So open spoilers (alarm sounds), push lower right button briefly to
silence alarm, alarm resets when either gear or spoiler switch
changes state. I like your airspeed idea better... I'll forward
that.

-Evan Ludeman for CNi

On Tuesday, February 3, 2015 at 7:33:05 PM UTC-5,
wrote:
Will that warning suppression be groundspeed based so that
protection is still given once the glider has accelerated through
the initial, spoilers-out takeoff roll?

B3

"Next release of CNv will offer the ability to defeat the spoilers
open on takeoff warning"

The 302 uses airspeed: if the spoilers are still extended as the
airspeed increases past 25 knots, the alarm goes off. It works perfectly
on my motorglider, because I taxi and have the spoilers open to apply
the brake. So far, I haven't forgotten to close the spoilers for takeoff,
but others have (they didn't have a spoiler open on takeoff alert).

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to
email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1
- "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS, Flarm
http://tinyurl.com/yb3xywl