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Soap Bubbles in Hang Gliding

Postby JoeF » Tue Jun 16, 2015 10:32 am

Soap Bubbles in Hang Gliding
by all comers:




Machines, formulas, teamwork, sites, reasons for use, challenges, solutions, ...
== Reasons? Start: Safety, wind vorticity visibility, helicity visibility, flow direction visibility, turbulence awareness, launch safety, landing safety,
== COTS ? Commercial-off-the-shelf tools and equipment? Professional Stage Equipment/Remote Control Bubble Machine.
== Alternatives to soap bubbles?
== Environmental questions? Biodegradable? Ranger comment? Environmentalists comment? Plant and and animal interface?
== Bubble-making volunteers in radio contact with launch officer?
== Experiences. Tips. Problems. Challenges. Solutions. Does one achieve target goals?
== Possible downsides?
== Why soap bubbles drop, pop, last only so long ... Then why do some bubbles go up ???




Start:

Postby JoeF » Mon Jun 15, 2015 10:52 pm wrote:
billcummings wrote:
Use Mr. Bubbles or Dawn dish washing detergent and water 50/50 mix and a little Glycerin for better bubble life. Also different size hoops for different size bubbles.
http://on.aol.com/video/how-to-make-gia ... -518380561


So, longer-lasting bubble could be your suggestion for testing the possible thermal activity over the treatment vats! My toy bubbles disappear too soon and drop too soon. I'd like to follow up on your formula. Binocular study of the bubbles downwind could possibly reveal wanted data.

With your good lead, BillC, here is a lead to anothr formula
http://sciencebob.com/the-ultimate-bubble-solution/

Additionally, I am thinking of making and releasing bubbles at altitude (not from ground) from a long-tether kite-system platform. If the bubbles fall ordinarily, then perhaps no thermal. But if the bubbles rise especially noticeably, then that would be interesting. And then notice this over some intervals of time to see the constancy of flow behavior.

Would a tiny bit of the soap bubbles dropping into the vats bother the bacteria used in the treatment plant? Maybe the experiment would need to be approved by chemical engineers of the operation. What grace could the experiment give to the public besides our hang gliding wind flows?

Maybe the potential therms could be detective by other wind-reading methods.
https://en.wikipedia.org/wiki/Wind_profiler
https://en.wikipedia.org/wiki/SODAR

Maybe a long kited line with scores of tell tales on the tether could profile what is happening. Skilled kiting to keep the line below the near tower heights will be needed.

At Sylmar at the Markus S. service on June 14, 2015, I suggested a movement to put continued energy into gaining ever better visibility of wind.


Postby billcummings » Tue Jun 16, 2015 9:50 am wrote:I have always wanted to make a remote activated, 12 Volt, solar charged and battery powered bubble maker and install three units, spread out, down in front of the 7,000’ msl, cliff launch at Alamogordo, NM (USA).

Parts would come from vehicles at junk yards.

I would want three separate frequencies for remote key less entry for door locks for each of the three separate bubble making units.

Three small 12 Volt fans.
Three windshield wiper motors, with shortened wiper arms.
Three reservoirs to hold, soap, water, and Glycerin solution. (for making bubbles.)

Once a pilot with glider is on the ramp I would press the door remote button to start the door unlock mechanism.

Instead of unlocking a door it would start the windshield wiper motor that would open the lid of the reservoir and with each push of the unlock button would step the windshield wiper motor up in speeds of the intermittent wiper relay.

The shorter wiper arm would dip a wand into the reservoir solution and raise the wand up in front of the 12 volt fan and produce bubbles.

After the pilot launches I would hit the lock button on the remote(s) to turn off and save the bubble solution until the next pilot takes position on the launch ramp.
All I need is someone to get off the keyboard (other than me) and use my open source idea. Have at it or refine and simplify this concept.





[[ [ ]? Long-tether uninhabited kite system tether-based bubble making? No solution yet. Would like to release bubbles from a tether or drop line from lifter-kite system. Perhaps a wick system or gravity-feed system where liquid would arrive to pipe-cleaner ring. Then ambient wind or tether jiggle might release bubbles; or have an impeller driving air pump to get better than ambient wind flow at bubble maker. ]]
Last edited by JoeF on Tue Jun 16, 2015 12:04 pm, edited 4 times in total.
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Re: Soap Bubbles in Hang Gliding

Postby Rick Masters » Tue Jun 16, 2015 11:07 am

I've watched pilots use toilet paper, beginning with Gilbert Roberts who manufactured the "breadpan vario" back in the early 1980s.
I thought that was kind of silly and it looked a lot like littering...
I prefer a variometer, myself, or even better, a Thermal Snooper / variometer combination.
These instruments, which measure the rate of change of temperature and pressure, respectively, provide a better indication of thermal activity than soap bubbles or toilet paper.
The Thermal Snooper indicates thermal activity in the area and the variometer helps identify the thermal core.

Explorations with the Thermal Snooper
https://web.archive.org/web/20120423121 ... lusion.htm
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Re: Soap Bubbles in Hang Gliding

Postby Frank Colver » Tue Jun 16, 2015 11:11 am

When Bill Watson first started attending our RC glider contests he was a teenager, with a bubble maker mounted on top of his home-built camper on his pickup truck. It was definitely a change for our club contests because we could see the thermals as they passed through the area where he was parked. Many of you may know Bill from his work in later years with human powered blimps, aircraft, Aerovironment, etc. I personally haven't seen him since the Dockweiler vintage HG meet in Sept of 2000 where he wa soaring an RC flying wing.

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Re: Soap Bubbles in Hang Gliding

Postby JoeF » Tue Jun 16, 2015 12:00 pm

Photos show with this link: Adventures with the Thermal Snooper by Rick Masters
as presented in "Soaring Magazine"
The Journal of the Soaring Society of America
August 1987, pp. 29-24
http://web.archive.org/web/20090612122602/http://www.cometclones.com/illusion.htm
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Re: Soap Bubbles in Hang Gliding

Postby ARP » Tue Jun 16, 2015 1:58 pm

In the early days soap bubbles and Dandilion seeds were used to determine wind speed /direction and flow over the hill. To observe wind currents around the block of flats where I lived I used tissue gondolas that could float on the currents. Watching these I could map out where the lift and sink was around the building. I wonder if fluorescent coloured paper cones could be used by seeding them as you fly and then observing which ones were going up. The cones automatically centre the lift so you could circle around the cone that is climbing the best. If made from rice paper they would pose no ecological threat.

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Re: Soap Bubbles in Hang Gliding

Postby JoeF » Tue Jun 16, 2015 2:32 pm

Nice rice ARP !

Image

Image

Rice-paper rotating confetti

Water Soluble Eco Confetti - BoomWow Confetti Cannons


Rick M. mentioned "litter". Even the perception of littering would be a game changer.
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Re: Soap Bubbles in Hang Gliding

Postby Frank Colver » Tue Jun 16, 2015 8:56 pm

Hmm.....how long will we be welcome at Dockweiler if we start trashing the area. :thumbdown:

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Re: Soap Bubbles in Hang Gliding

Postby Bill Cummings » Tue Jun 16, 2015 9:19 pm

This fellow has figured out how to add color inside the bubbles for easier to see bubbles.
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Re: Soap Bubbles in Hang Gliding

Postby JoeF » Tue Jun 30, 2015 11:16 am

Read: http://soapbubble.dk/english/science/floating-soap-bubbles/

Steam? And some other tricks.

==================
Steam bubbles:


==================

Beach? Solar radiation over black cloth as bottom of clear polyfilm chamber: heat the air. Then pump that hot air into bubble making machine. Would rising bubbles result? How long before such bubbles loose enough heat to become sinkers?
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Re: Soap Bubbles in Hang Gliding

Postby Frank Colver » Sun Jul 05, 2015 1:58 pm

Here's great-grandson, Andre, showing great-grandpa Frank, where the thermal is, on a beautiful July 4th afternoon. Notice the rising bubbles toward the right in the photo.

The "Spider-Man" bubble solution makes long lasting bubbles.

I will bring this highly sophisticated thermal locating machine (without Andre) to the Hobson / Miller gathering at Dockweiler Beach next Saturday (7/11/15). 8-)

fcolver

Andre and bubbles.jpg
Andre and bubbles.jpg (360.28 KiB) Viewed 4264 times
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