Drawing attention to the new arrestor cable.


A good idea to draw attention to the new barrier intended to prevent pilots from hitting the power lines North of the LZ...  A solar-powered strobe light that only operates during the day.

I contacted LumaStrobe with the following message:

I need a strobe light that is solar powered and only flashes during the day (not when dark). It is to prevent free-flight pilots to hit a horizontal wire. Needs to be visible from at least 1000' away and with at least 180-degree angle of visibility (facing a typical incoming flight path). It needs to be automatically off at night to prevent disturbing campers/residents (no pilots flying at night). Thank you.

Post here if you know of another manufacturer or solution, thanks. 

Seems like a fortunate confluence of circumstances that such a strobe would only be needed between sunrise and sunset, which could theoretically make such an installatioon so simple as to be almost 100% foolproof.  As long as the strobe is directly powered by the solar panel with maybe an optional capacitor to add a little buffer capability, it would not even need an on-off switch let alone computerization.  Just hook up the wires and let er go.  A friend was just telling me how he had to push out to clear those wires when landing into an East wind several days ago.  Then again if someone is landing in near-darkness, that might be when a strobe was needed most, since the wires would be less visible in near-darkness.  Maybe that could be worked in to how much capacitor to include so it continues to function for a while after sunset.  Another possibility might be to use the power in the wires, even by an inductive coupling (no direct conncetion), and use a small solar cell to tell it when to turn on and off.

A strobe also has a few disadvantages. I feel like it could be distracting during approach. The strobe would focus some of any pilot's attention toward the strobe, even subconsciously, and this reduces peripheral awareness of other wings etc. Strobes have some perceptual effects, depending on their magnitude, frequency and the individual.

Anyway some of the people who've hit the lines had such poor situational awareness to begin with, a flag-man straddling the line waving an orange flag yelling with a bullhorn would hardly have stopped them.

There are always plenty of dangers when burning off altitude near the LZ, so i think an effective manner of instruction is about the best anyone can do. YMMV.

my $0.02.


Porn. I have a large DLP projector i'm not using, which has never been used for such a purpose, ever before. (guess it just didn't occur to me). Could drape a screen w\weight from that new cable and bam. Good to go.

Anyway, got this all figured out now...because a strobe would be way, way too distracting. Its like, ridiculous.


; )

The new cable recently placed parallel and 20' or so north of the power lines is a great idea. I suggest however that instead of spending money on orange balls that will sit stationary and below the horizon of a pilot maneuvering near the hill meaninf they will be difficult to see, why not string a half dozen wind streamers each 2 to 3 meters in length along this cable. The cable can be lowered via a pulley at one end to replace the streamers a couple times a year. Such streamers would be cheaper than the balls, more readily seen than static balls and, provide a wind indicator as a bonus.

Let me publicly,  and belatedly, thank Dog Gone Bill for not only sourcing the poles, but bringing out a crew  (Marilyn), a pole setting truck and along with our own Cat Skinner Gene, erecting them as well Thanksgiving weekend.

We had almost given up on the pole/barrier plan and were looking instead at begging SCE to place marker balls on the live conductors. That was a plan B.  Thanks to Bill and Marilyn, our plan A became a reality.

Next time you see Bill and Marilyn out at AJX, make sure you throw a cold one into his E Teamer Claw!

Thank You Bill!  Your contribution to AJX pilot safety goes above and beyond the call of duty!


Rob  say ,,,,,


 why not string a half dozen wind streamers each 2 to 3 meters in length along this cable. The cable can be lowered via a pulley at one end to replace the streamers a couple times a year

Brightest orange streamers  ( possibles chrome streamers  <== That many farmer use chrome ribbon  prevent from bird get reach fruit plant  )   


Actual Video ==>> https://www.youtube.com/watch?v=vgGuoy3mG2I

another ==>>       https://www.youtube.com/watch?v=Utob_GAun0o


Here is Look Picture =>>>> 



==>> Good ideas Scrap CD Rom Discs  put many CDs hang to cable  make spark from day time ==>

Take look here ===>> https://www.youtube.com/watch?v=1kNf3FoP9Dc


Streamers, pennants, orange balls, strobes, reflective tape, site intros, etc.

They all will add safety to that area of concern. We have been very fortunate that there hasn't been a serious injury from the lines.

Let's be proactive on this. We just need to put our thinking caps on!

Big "Atta Boy & Girls" to all that have helped make this project happen!

Fly Safe!


As one who had a close encounter I can not stress enough the importance of such measures and thank Jerome who addressed this recently with the board, and Bill and Marilyn (and others) for implementing all this. THANK YOU!!

In addition to the excellent idea of wind streamers or Pennant strings (and maybe even a few balls, which will last very long), I recommend to put up some GOOD QUALITY LED string lights (like those Xmas Lights).

It would need just a simple solar panel (like those on the roofs of CCR) with a simple charge controller and a car or motorcycle battery close to the mast, maybe even behind the panel. Contrary to Marshall we probably won't have the issue with vandalism and theft.

This would also illuminate the area beneath like a street light, though very weakly. It would be great to see this light string even after hours, it reminds/manifests everybody that there is an obstacle.

And it would be just right in the Christmas spirit.

Keep in mind that in order for any pilot to encounter, or get a close look at this thing, that pilot has already violated the "maintain a glide to a safe landing area" , one of the tenets of soaring.  After the second event in a 16 month period, it became apparent that paraglider students draping over the powerlines could likely become a recurring event.. The latest event short circuited the lines and Edison chose to replace the conductors. Edison is likely going to pass on the associated costs to our site insurer, RRRG.    An analysis of potential outcomes yields a frightening list with dead pilot and wildfire as the top 2.  Making the lines more visible by whatever method doesnt mitigate the outcome when the next event occurs. With that in mind, I chose this barrier idea as it is most likely to keep the top 2 outcomes from becoming reality.  Sure, some new hyperenthusiastic pilot will be embarrassed by dangling from this apparatus, but he'll be going home for dinner intact and news helicopters wont be circling over our site televising the latest brushfire.

I tell my students, "Look at the size of that mountain. You'd think that something that big would be impossible to not notice.  Yet every year we scrape pilots off the side of it after they've run into it." 

Would a chrome flashing strobe car laden with ribbons be immune to traffic collision?

Pilots and instructors need to place into perspective our passionate love for this "femme fatale" that is flight. She is beautiful, yes, but she kills.

And yes, the line will be plenty obvious. Sheathed in bright yellow with a couple orange no maintenance high visibility balls. Streamers and flags will degrade and might add a used car lot ambiance that ranch corp might not appreciate. Every year we add site enhancements that rely on volunteer hours for their care and upkeep. The less of these hours damanded of pilots, means more hours they can devote to remaining aloft within safe glide to a safe landing area.