Nelson cockpit air pressure evacuation vent ?

Saw an advertisement of a glider for sale with "Nelson cockpit air pressure evacuation vent ". What is this and are there any photos. I did a google search but found nothing.

Thanks

On Sunday, November 22, 2015 at 12:57:27 PM UTC-8, Jonathan St. Cloud wrote:
Saw an advertisement of a glider for sale with "Nelson cockpit air pressure evacuation vent ". What is this and are there any photos. I did a google search but found nothing.

Thanks


The air evacuation vent, commonly known as the "NCAPEV" (patent pending) as produced by Dave Nelson is similar yet dramatically better than the "reverse NACA" vents installed by Jonkers and others.

David Nelson is an uber world-class glider craftman and not uncoincidentally, the disseminater of Magical Flying Frogs ("MFF's"). The MFF, if installed correctly, increases glider performance by 7-19%.

Any ship with a MFF or Nelson vent is worth at least what the seller is asking. Production of both items, sadly, is very limited. I believe Dave is hibernating in FL at the moment.

The Jonker vent is nothing like a "reverse NACA" vent.

On Sunday, November 22, 2015 at 6:07:01 PM UTC-5, wrote:
On Sunday, November 22, 2015 at 12:57:27 PM UTC-8, Jonathan St. Cloud wrote:
Saw an advertisement of a glider for sale with "Nelson cockpit air pressure evacuation vent ". What is this and are there any photos. I did a google search but found nothing.

Thanks


The air evacuation vent, commonly known as the "NCAPEV" (patent pending) as produced by Dave Nelson is similar yet dramatically better than the "reverse NACA" vents installed by Jonkers and others.

David Nelson is an uber world-class glider craftman and not uncoincidentally, the disseminater of Magical Flying Frogs ("MFF's"). The MFF, if installed correctly, increases glider performance by 7-19%.

Any ship with a MFF or Nelson vent is worth at least what the seller is asking. Production of both items, sadly, is very limited. I believe Dave is hibernating in FL at the moment.

Is it April 1 again?
UH

On Monday, November 23, 2015 at 8:55:41 AM UTC-5, wrote:
On Sunday, November 22, 2015 at 6:07:01 PM UTC-5, wrote:
On Sunday, November 22, 2015 at 12:57:27 PM UTC-8, Jonathan St. Cloud wrote:
Saw an advertisement of a glider for sale with "Nelson cockpit air pressure evacuation vent ". What is this and are there any photos. I did a google search but found nothing.

Thanks


The air evacuation vent, commonly known as the "NCAPEV" (patent pending) as produced by Dave Nelson is similar yet dramatically better than the "reverse NACA" vents installed by Jonkers and others.

David Nelson is an uber world-class glider craftman and not uncoincidentally, the disseminater of Magical Flying Frogs ("MFF's"). The MFF, if installed correctly, increases glider performance by 7-19%.

Any ship with a MFF or Nelson vent is worth at least what the seller is asking. Production of both items, sadly, is very limited. I believe Dave is hibernating in FL at the moment.

Is it April 1 again?
UH

It is in the video on an ASW20 at https://www.youtube.com/watch?v=5rypbZiSkrY. Nice glider...

At 13:55 23 November 2015, wrote:
On Sunday, November 22, 2015 at 6:07:01 PM UTC-5, wrote:
On Sunday, November 22, 2015 at 12:57:27 PM UTC-8, Jonathan St. Cloud
wrote:
Saw an advertisement of a glider for sale with "Nelson cockpit air
pressure evacuation vent ". What is this and are there any photos. I
did
a google search but found nothing.

Thanks


The air evacuation vent, commonly known as the "NCAPEV" (patent
pending)
as produced by Dave Nelson is similar yet dramatically better than the
"reverse NACA" vents installed by Jonkers and others.

David Nelson is an uber world-class glider craftman and not
uncoincidentally, the disseminater of Magical Flying Frogs ("MFF's").
The
MFF, if installed correctly, increases glider performance by 7-19%.

Any ship with a MFF or Nelson vent is worth at least what the seller is
asking. Production of both items, sadly, is very limited. I believe
Dave
is hibernating in FL at the moment.

Is it April 1 again?
UH

Maybe someone's critical thinking process has settled down to a long
winter's nap.