Personal Journals about Hang Gliding

Owens Valley XC 2016

Postby Rick Masters » Fri May 20, 2016 12:38 pm

May 20, 2016

Very strange for the end of May. Not even breaking 80F through the 29th.
And I don't like the wind forecast into the weekend.
25mph-predicted on the valley floor is for crazy people.
You can encounter some real dangerous stuff over the passes where the wind is a lot stronger.
In the venturis where it doubles in speed and quadruples in force.
Can you spell W-a-k-a-y-a-m-a?

"Long term...Monday through Friday. The medium range models indicate a relatively cool weather pattern will hold over the southwest states through at least the middle of next week. Short wave energy is forecast to dive down the California coast and into the Mojave Desert region Monday on the back side of the broad exiting closed low. This will carve out a mean trough and additional disturbances are forecast to drop down into Southern California and southern Nevada through at least Wednesday. This will lead to a pattern of afternoons southwest winds of 15 to 25 mph across the Mojave Desert region each day and high temps around 10 degrees below normal...with highs generally in the lower 80s in Las Vegas. Sufficient moisture and instability to support chances for showers and thunderstorms will mainly be confined to the southern Sierra and the higher terrain near central Nevada during the period." -- Wunderground

123F in India yesterday!
Here's last year on the valley floor at Bishop. Hit 96F on Saturday, May 29. Huge difference.

Image

Here's a known good week - the week Tudor broke 200 miles in July 1983:

Image

Tudor's record flight was on Friday the 13th. Note the temperature range of ~40F, the constrained dew point and the uniform southerly wind that developed on Saturday. Judging by how fast he flew and how fast I had to drive to keep up with him, the winds at altitude over Nevada on Friday were quite southerly / southwesterly. That was the influence of the low to the north over Oregon (always something to watch for). He got away from Walt's Point at 10:30. Winds had been strong the day before. But it wasn't the ideal day. People got drilled all along the route.

I made 178 miles along the route in 1986. All the hot shots, maybe eight, flew fast and got drilled at the foot of the range east of Luning, NV. I flew slower and passed above them, crossed the range to land 17 miles east of Gabbs. Very little stress, by the way. Its mostly excellent landing areas below, all the way.

Slow start to the XC season this year. I suggest looking toward the first week of June.

---------------

A reminder from
"Racing for the Record"
by Rick Masters
"Whole Air Magazine" -- USA, Sept/Oct 1983; "Wings" -- United Kingdom, October 1983; "Drachenflieger" -- Germany, November 1983; "HanGlider" -- Japan, December 1983; "Glider Rider" -- USA, December 1983

Before disaster struck, he remembered circling easily in the thermal, pushing out gently on the control bar to capture the lift, holding his body slightly towards the high wing to increase its loading. It was a technique he'd refined to gain the highest level of performance from these sleek, tight-sailed aircraft designed specifically for cross country racing. Despite the lack of aerodynamic controls, the feather-light hang glider handled superbly on weight-shift alone. He even found the absence of control surfaces in the airstream worked to his advantage, for without the drag-inducing rudders or ailerons the curved-tip Sensor had the fastest, flattest glide he'd ever experienced.

He'd done well. Very well. He was 114 miles from gusty Gunter launch, riding some of the smoothest air he'd ever flown, pushed along by a marvelous tailwind and averaging nearly 50 mph above the desolate Paradise Range of central Nevada. If he could just reach the Toiyabe mountains across the next valley, he would ride the thermal lift they generated to a new world distance record!

Without warning, the glider rolled upside down and his suspension lines went slack.

He instinctively tightened his grip on the control bar as his legs fell down into the sail, knowing the glider might just as suddenly recover. But a powerful gust punched up into the sail from below and he lost his hold, falling painfully into the apex of the triangular control frame.

His head crashed against the keel. Stunned, he reached for the uprights to pull himself back up to the control bar when an "unbelievably savage" blast of air hit the inverted glider from above, driving it downward with furious acceleration. The limp suspension straps snapped taut and he was slammed into his harness with a force that almost knocked him out, throwing his arms and legs skyward and smashing his chin into his chest.

In the center of the turmoil, he heard a loud "BANG!"

The foremost nightmare fear of the hang glider pilot screamed through him.

"Oh my god!" he thought. "My harness is breaking!!"

But it was the frame of the Sensor.

The glider fell off to one side and began to spiral. He swung loosely in his harness, slamming against the control bar, tearing at the Velcro that secured his emergency parachute. He ripped it free and hurled it through the flapping wires, away from the madly spinning wreckage.

He tried to watch it, to see if it had cleared the glider, but the spinning made it impossible. All he could see of it was that the bridle -- the line that connected him to the parachute -- was wrapping around everything!

He went through another full revolution, then another. The time seemed endless and the parachute did not open. Then to his horror, the top of the peak he had been crossing leapt up next to him not 500 feet away.

He knew he was dead.

The 'chute burst open.

The force of deployment threw him through the control bar and onto the glider's nose. He saw he was drifting downwind, through the rotor of the mountain, descending rapidly through the thin, turbulent, unpredictable air towards a violent impact on a boulder-strewn slope. He reached for the transmit key on the FM walkie-talkie attached to his harness shoulder strap.

"Bob!" he yelled. "I'm going down! Going down on my parachute!"
--------------
Far below, near the base of the mountain, Bob Trampeneau, designer and manufacturer of the Sensor, had brought the chase vehicle to a halt. He had heard the sporadic transmissions as Rik's head had inadvertently slammed into the transmit key. He knew something had gone wrong. Now the sound of the tires on the dirt road was gone. He turned off the squelch and listened carefully.

There, in the static, he heard ". . . going . . . parachute . . . ," followed by silence.

He thumbed the mike.

"Rik! Where are you?"

No answer.

'He must be on the other side of the mountain or I'd hear him better,' Trampaneau thought. He jammed the chase car into gear.
---------------
He tried to climb up the keel to get away from the nose -- to let it take the force of impact. He was pulling himself up through the control bar when the glider suddenly pitched over just before it hit, hurling him against the ground. He hit flat on his back, sliding headfirst down the 45-degree slope, and the glider crashed down on top of him.

He lay there for a while, trying to breathe . . . .

"It was that piece of turbulence that everybody has nightmares about. Everybody told me about it; people who've had it happen to them. They said it could happen anywhere. Anytime. But I could never imagine the air being that violently savage. It was incredible! Until that point, I thought I was having one of the smoothest flights of my life. The only way I can explain it is I feel I ran into a really strong wind shear. It couldn't be seen, but it was there. And it was pretty good. There was something I read the other night. It's out of a book by Joseph C. Lincoln, called Soaring for Diamonds, and it's about the sky. It said, "The sky, to which some men are drawn like lost children going home. The sky, sometimes lover, sometimes mother, sometimes savage master." That really stuck in my head after that experience.... -- Rik Fritz
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Re: Owens Valley XC 2016

Postby Rick Masters » Thu May 26, 2016 11:27 am

May 26, 2016
Long range forecast.
Image
Because of the unusually cool weather, I think we will be entering what is usually the delightful flying season typical of the last week of May beginning June 1, Wed. This is the best time for new pilots to introduce themselves to the Owens Valley. Larger gliders will do better. Fly with as little weight as possible.

Wednesday, June 1, is looking good for a flight off Mazourka at 1:00 into light west winds for an out and return to Cerro Gordo scratching along the Inyos. The trick is to gain enough altitude above Mazourka to drop back into the spine of the Inyos where the lift is consistent.

Thursday, June 2, is looking like it will have cloud streets with light south winds, ideal for a flight off Walt's Point north to Mt. Tinnemaha or Birch and perhaps crossing to Black Mt. and up the White range toward Boundary Peak. Max out your altitude before leaving the Sierra. Expect Black Mt. to Gunter Launch to be difficult, and expect north winds to shut down your adventure if you attempt to go north from Boundary.

Friday, June 3, is looking like a lazy day to drift way back in the Sierras, maybe all the way back to Mt. Whitney, and explore the range north to Mammoth under a Sierra cloud street. Days like this can be particularly memorable.

Saturday, June 4, may be one of those rare days of flying south from Walt's Point toward Inyokern. If you get drilled, a second flight is possible in the afternoon from the north face of the Alabama Hills if you have 4WD. Choose your landing area near the highway and flag it before heading up the steep road from the southwest corner of the ridge.
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Re: Owens Valley XC 2016

Postby Rick Masters » Mon May 30, 2016 4:03 am

Area forecast discussion
National Weather Service Las Vegas Nevada
230 am PDT Monday may 30 2016

Synopsis...fair weather is expected for most areas on this Memorial
Day Holiday with just a few isolated thunderstorms possible across
the the Sierra, southern Nevada north of Las Vegas, and northern
Mohave County. A drying and warming trend will commence Tuesday with
widespread triple digit heat building into the deserts midweek
Onward. Friday and Saturday look especially hot, creeping to within
a few degrees of record territory.

Short term...today through Wednesday.

Weak upper low currently spinning over the southern Mojave Desert
will continue to provide modest lift across the region which will
result in another afternoon of some isolated thunderstorms across
parts of southern Nevada, the Sierra, and northern Mojave County.
High resolution models suggest deformation zone enhancement focusing
an area of activity across Lincoln County southwestward towards the
Spring Mountains and southern Nye County by late in the afternoon.
As such, we can expect a few isolated to scattered high based
showers and thunderstorms in this area later today. Activity looks
as though it will remain north and west of the Las Vegas Metro.
Elsewhere, dry and seasonable weather can be expected with light
winds.

Tomorrow a warning trend will commence with temperatures beginning to
climb above normal. Further warning is in store Wednesday with many
desert locations creeping near or into triple digit territory.

Long term...Thursday through Sunday

High pressure strengthens over the region Thursday and Friday with
dry conditions and temperatures warming to the highest levels of the
year so far. High temperatures by Friday will be well over 100
degrees across the Mojave Desert with some areas flirting with
records. The record high Friday for Las Vegas is 107 and we are
currently forecasting 106. After the relatively cool may,
temperatures at these levels could result in health/safety issues
for those who are heat sensitive and those without effective
cooling. Not much change expected for Saturday although we will
start to see an upper trough/low approaching the California coast.
We may start to see an increase in mainly high level cloud cover
which could limit heating slightly but for now don't count on it.
There could be just enough of a moisture increase and instability
over the Sierra for a slight chance of showers/thunderstorms in the
afternoon. The models are in decent agreement moving this trough
inland into California Sunday with heights falling across the area.
This combined with increased cloud cover will lead to 2-4 degrees of
cooling and also a little better chance of showers/thunderstorms
over the Sierra.

Aviation...for McCarran...light winds expected today favoring
easterly directions in the afternoon hours. Wind speeds through the
day look to remain at or below 9 knots. Otherwise, mostly sunny
skies expected with few-sct clouds above 10k feet developing in the
late afternoon.

For the rest of southern Nevada...northwest Arizona...and southeast
California...fair weather with light winds are expected for most
areas today. A few high based showers and thunderstorms may develop
this afternoon over the Sierra, southern Great Basin, and northern
Mohave County but coverage will be only scattered to isolated.
==================================
Image

Revised site predictions for hang gliding by RM

A warming trend into the lower 90s on the valley floor will continue through the week and peak on Friday and Saturday.

Monday and Tuesday, May 30 and 31, offer similar light north wind scenarios ideal for Mazourka Peak north launch into thermal cycles with potential XC along the Inyos southward toward Cerro Gordo. The trick is to gain enough altitude above Mazourka to drop back into the spine of the Inyos where the lift is consistent. Tinnemaha Reservoir offers an excellent indication of wind strength and direction in the valley.

Wednesday, June 1 will bring the much-anticipated north-to-south wind switch at Walt's Point in the afternoon around 2pm. This wind direction change breaks free thermals sheltering in leeside pockets, creating delightful bands of lift along the Sierra Escarpment. SSW valley floor winds will peak at 10mph by 5pm, offering potential for a valley crossing and 100-mile flights along the White Mountains into Mono County. North winds will possibly put a stop to XC attempts beyond the end of the range.

Thursday, June 2, will bring the north-to-south wind switch a couple hours earlier than the day before, with opportunities to launch around noon from Walt's Point. Flights north to Mt. Tinnemaha or Birch, then crossing to Black Mt. and up the White range toward Boundary Peak will be relatively easy. Max out your altitude before leaving the Sierra. Expect Black Mt. to Gunter Launch to be more difficult.

Friday, June 3 through Sunday, June 5 are all looking very good for Walt's Point with the potential for high cloud streets increasing into Sunday. Light southerly winds will assist XC attempts into Nevada but it looks like the chance of north winds at the north end of the Owens Valley will present a barrier.

On Sunday, June 5, southerly winds are forecast to double in strength north of the White Mountains, peaking above 20 mph and presenting both opportunity and danger to hardcore XC hang glider pilots flying from Walt's Point. Welcome to the Owens Valley XC season. It's here.

Rick Masters
30 May 2016 5:30 am PST
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Re: Owens Valley XC 2016

Postby Rick Masters » Fri Jun 03, 2016 9:21 pm

HEAT WAVE UPDATE Saturday, June 4
NWS: "Mostly sunny, with a high near 98 [in Bishop. Higher temps to the south. 106F forecast for the Central Valley! - RM]
Light and variable wind becoming south southeast 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph."
Flying OV in anything other than sailplanes is NOT ADVISED.
You have been warned.


Image
Sunday, June 5
Maybe six degrees F cooler. Very advanced hang gliding skills required.
Walt's Point, 10-11:00 IF a crew member stationed at the first switchback reports light south winds.
Mazourka, north face, 11 am
Paiute, 12:30 pm
Extreme conditions. Variable surface winds. Use wind indicators for landing (dust bombs, streamer spears).
DO NOT LAND UNTIL SUNSET.     :wave:   "You're a better man than me, Gunga Din."

PILOTS WHO ARE NOT READY TO LAUNCH BY THE TIMES SPECIFIED FACE ADDITIONAL RISK AT TAKE OFF.
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Re: Owens Valley XC 2016

Postby Rick Masters » Thu Jun 16, 2016 9:43 pm

My gut tells me it's too strong this weekend. Maybe Monday for some hardcore XC. Be careful.
Image
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Re: Owens Valley XC 2016

Postby Rick Masters » Fri Jun 17, 2016 6:11 pm

Read this:
Image
Spring Heads to a Toasty Finish across the U.S.
By: Bob Henson , 4:39 PM GMT on June 13, 2016
https://www.wunderground.com/blog/JeffMasters/spring-heads-to-a-toasty-finish-across-the-us
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