High Vis Markings

On Fri, 22 Jan 2016 13:02:25 -0800, mikeatwork2 wrote:

Again not cheap at $30 per
25'x1" roll, but very bright in the daylight sun. Maybe the underside
of the fuselage for this tape?

May not be much use under the fuselage or flying surfaces due to a lack
of direct sunlight on the tape.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

Martin,
Dark under wing shows up better (my opinion and article I just read). Large contest numbers or European registration numbers under side of wing stand out well.


On Saturday, January 23, 2016 at 6:34:32 AM UTC-5, Martin Gregorie wrote:
On Fri, 22 Jan 2016 13:02:25 -0800, mikeatwork2 wrote:

Again not cheap at $30 per
25'x1" roll, but very bright in the daylight sun. Maybe the underside
of the fuselage for this tape?

May not be much use under the fuselage or flying surfaces due to a lack
of direct sunlight on the tape.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

On Sat, 23 Jan 2016 05:15:08 -0800, Casey wrote:

Martin,
Dark under wing shows up better (my opinion and article I just read).
Large contest numbers or European registration numbers under side of
wing stand out well.

Well, big dark registration would certainly show up better than unlit
reflectors. That was my point: that reflectors mounted where the sun
never shines on them aren't a lot of use.

However, while large, dark registration or comp ID is readable on a
glider that is within a fairly narrow overhead cone and probably not a
lot more than 1000ft above you, its unlikely that they are even visible
if the glider is more than a kilometer away or 2-3000 ft higher.

IOW, I don't think the reg etc. make any difference to the visibility of
gliders that are over 1 km away and in any case a glider should be easy
to see at that distance if its above or below you.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

2 Yrs ago I saw a Silent2 FES with the LED on fin. I understand AS is offering as an option too. Just wondering why manufactures are not offering LED on underside or if they actually are. Or maybe the LED on fin can been seen some from forward/below.

On Saturday, January 23, 2016 at 9:32:00 AM UTC-5, Martin Gregorie wrote:
On Sat, 23 Jan 2016 05:15:08 -0800, Casey wrote:

Martin,
Dark under wing shows up better (my opinion and article I just read).
Large contest numbers or European registration numbers under side of
wing stand out well.

Well, big dark registration would certainly show up better than unlit
reflectors. That was my point: that reflectors mounted where the sun
never shines on them aren't a lot of use.

However, while large, dark registration or comp ID is readable on a
glider that is within a fairly narrow overhead cone and probably not a
lot more than 1000ft above you, its unlikely that they are even visible
if the glider is more than a kilometer away or 2-3000 ft higher.

IOW, I don't think the reg etc. make any difference to the visibility of
gliders that are over 1 km away and in any case a glider should be easy
to see at that distance if its above or below you.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

On Fri, 22 Jan 2016 06:23:34 -0800 (PST), Casey
wrote:

With all the posts regarding collision avoidance electronics, I was wondering about high vis markings.

Seems like many of us put thousands of dollars into electronics and nothing into high vis markings.

Kinda hard to believe the infinite wisdom master has not mandated it, and especially since a transposer is not required.

USAF airplanes had Day-Glo markings in the Fifties, but it went away.
IIRC they concluded it just wasn't getting results, even with all
their formation flying.

rj

The cross country model glider guys have found that the best color for visibility at distance is flat black. This applies both in the blue and under cloud. Black anti collision marking would be awesome.
Darth.

On Sunday, January 24, 2016 at 10:34:26 PM UTC+3, wrote:
The cross country model glider guys have found that the best color for visibility at distance is flat black. This applies both in the blue and under cloud. Black anti collision marking would be awesome.

Conversely, in WW2 the British discovered that the best camo paint job for low level bombers was actually bright lights along the leading edges, to make them as bright as the sky. Even white paint is much darker than the background.

Well, certain sunglasses also help objects standing out. Wouldn't be cool to have a high vis paint the shows up with special sun glasses that does not show up without them. Someone could make a mint with the paint and sunglasses.

I had a hard time finding sunglasses that I like that were not too dark or polarized.

Seems to me the best is to have LEB strobe. Otherwise it would not be offered on new gliders.

On Sunday, January 24, 2016 at 6:33:11 PM UTC-5, Casey wrote:
Well, certain sunglasses also help objects standing out. Wouldn't be cool to have a high vis paint the shows up with special sun glasses that does not show up without them. Someone could make a mint with the paint and sunglasses.

I had a hard time finding sunglasses that I like that were not too dark or polarized.

Seems to me the best is to have LEB strobe. Otherwise it would not be offered on new gliders.

....or everyone be required to fly with FLARM or ADS-B connected to google glass! (with a maximum range in comp mode of course...

Sorry, i couldn't resist.

On Friday, January 22, 2016 at 9:23:37 AM UTC-5, Casey wrote:
With all the posts regarding collision avoidance electronics, I was wondering about high vis markings.


At Uvalde 2012, from the ground, I saw the European gliders with fluorescent orange significantly sooner than the pure white US and Candian gliders