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Topic: Ridge Lift

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	Gliding (Site not responding. Last check: 2007-10-19)
		Ridge running instead looks for air that is being mechanically lifted as it flows up the sides of hills or other vertical changes in the landscape (including buildings in some cases).
		Ridge running works in any climate or weather, but can only be used in certain locations.
		Well-formed cumulus clouds (the fluffy, cotton-wool type of cloud) with sharply defined flat bases often form at the tops of strong thermals, and long, stationary lenticular (lens-shaped) clouds, perpendicular to the wind direction, frequently mark the crests of atmospheric waves.
	bopedia.com /en/wikipedia/g/gl/gliding.html (1031 words)

	Lift for Soaring
		ridge is from the north, the wind on the surface on the south side of the
		Ridge lift is the mechanical rising of the air.
		Ridge lift occurs on the upwind side, at a distance which is equal to
	www.sonic.net /~pjkelly/tslift.html (2288 words)

	BSC Ridge Flying 1995
		The height of the ridge is between 700 and 800 feet ASL and we were flying at 1000 to 1100 feet ASL.
		On my first flight earlier in the day, I was on the ridge briefly in brisk winds and maintained height there, but did not stay at the best position relative to the ridge and lost height.
		UIL got away in lift to 3000 feet and flew to the North Mountain and the Weston area before lift died and had to return.
	www.chebucto.ns.ca /Recreation/BSC/ridge95.html (1288 words)

	Gliding: How Does a Glider Stay Up?
		Ridge lift is created when moderate or strong winds blow over a hill or ridge, and get deflected upwards.
		Wave lift is created by large hills and mountains, and is on a much larger scale than ridge lift.
		To use ridge lift you position the glider at one end of the hill / ridge (so that the hill / ridge is across wind).
	dspace.dial.pipex.com /town/pipexdsl/p/apru16/gliding/lift/lift.htm (825 words)

	Articles - Gliding (Site not responding. Last check: 2007-10-19)
		The most commonly used rising masses of air are thermals (updrafts of warm air), ridge lift (found where the wind blows against the face of a hill and is forced to rise), and wave lift (standing waves in the atmosphere, analogous to the ripples on the surface of a stream).
		Ridge lift rarely allows pilots to climb much higher than about 2,000 ft (600 m) above the terrain; thermals, depending on the climate and terrain, can exceed 10,000 ft (3,000 m) in flat country and much higher in the mountains; wave lift has allowed gliders to achieve altitudes approaching 50,000 ft (15,000 m).
		Ridge lift is present whenever the wind blows in any weather but sometimes it is augmented by thermals when the slopes also face the sun.
	www.seekj.com /articles/Gliding (2853 words)

	Ridge lift - Wikipedia, the free encyclopedia
		Ridge lift (or 'slope lift') is created when a prevailing wind strikes a geologic obstacle that is large and steep enough to deflect the wind upward.
		If the wind is strong enough and the ridge high enough, it provides enough force for gliders to stay airborne for long durations or travel great distances.
		Long mountain ranges such as those found in the United States, New Zealand, and Chile have been used by glider pilots to fly in excess of a thousand kilometers in a single flight.
	en.wikipedia.org /wiki/Ridge_lift (112 words)

	Gliding Magazine \| Features (Site not responding. Last check: 2007-10-19)
		Lift was good on release, and as soon as the start gate opened some of my Class headed out. I waited awhile to allow them time to serve as thermal markers and then followed, starting at a little over 4000t agl, just enough height to clear the first range of hills in a straight glide.
		The lift was much worse on this side of the hills, broken and weak, but it was too late now to start over.
		Now the issue was whether the ridge lift would continue to Thompsontown, or whether I'd have to fly there and back in thermals, probably much slower - and back against the wind.
	www.glidingmagazine.com /FeatureArticle.asp?id=248 (1180 words)

	High Country Soaring - The Diamond Lift
		When wind is deflected upward to overcome a ridge or mountain range, it often plunges downward the other side.
		Good Wave Lift is produced from November until May. The strongest wave is produced in April and May. Many Gold and Diamond altitude badges and national records have been earned by North American, European, Asian and Australian pilots flying High Country Soaring's Glass Ships.
		Ridge lift (or slope lift) is the product of mechanical lifting such as the wind encountering an obstacle such as hills or ridges.
	web0.greatbasin.net /~hcsoaring/pages/diamond-lift.htm (481 words)

	JF's Blog - Monday, May 09, 2005 Entries
		Lift is generated by your speed RELATIVE to the wind.
		But in ridge lift, wind goes up forced by the ridge in the windward side, so if you fly there you can stay aloft while the wind goes up relative to ground faster than you go down relative to wind.
		As you fly away from the ridge, the ridge lift diminishes, so if you keep your flying speed constant, your sink ratio is constant and you must go down proportionally to the ridge lift loss.
	geekswithblogs.net /jfsblog/archive/2005/05/09.aspx (279 words)

	SOARING IN THE ELSINORE VALLEY
		As the lift strengthens, the first sustainable lift in the vicinity of the airport frequently is over the south-west corner of the lake.
		Above 4000 feet ASL the lift is perfectly smooth, but below this altitude the rotor turbulence in the lee of the Santa Ana Mountains is quite severe.
		If contact with the primary wave cannot be made, it may be possible to save the flight by ridge soaring over the Sedco Hills, hoping for a secondary wave to develop along these hills, or to gain enough altitude for a later penetration upwind into the primary wave.
	www.soarelsinore.org /evsoaring.htm (1075 words)

	Aviation (Site not responding. Last check: 2007-10-19)
		Ridge, thermal and wave lift are the three natural forces that will keep a glider aloft.
		The biggest ridge running challenge is jumping gaps in the ridge; you have to ride a thermal upward before you attempt to fly across the area where there is no ridge deflecting wind upward.
		The wind died and so did the ridge lift, so the smart thing to do was casually glide to a nearby airport rather than risk landing in a field on the way home.
	www.empowercoach.com /bio5.htm (1508 words)

	Soaring
		An experienced pilot will recognize when they are being towed into an area of lift and they will release from tow in order to use the lift to climb on their own.
		The second, ridge lift, is created by wind flowing up the windward side of a hill.
		Third, wave lift is a form of lift caused by winds blowing perpendicular to a ridge or mountain and "bouncing" downwind.
	mywebpages.comcast.net /acechase/flying.htm (375 words)

	Eagle Ridge, Marmot Basin Ski Lift - Summary
		Eagle Ridge is an alpine and upper subalpine peninsula-shaped ridge on the southern flank of Marmot basin, itself a Northeast-facing cirque basin situated between 1600 and 2600 m.
		The Eagle Ridge ski pod comprises the Chalet Slopes on the west side of the ridge (Figure 2); Eagle East to the east (Figure 3); and a portion of the ski terrain within the Thunder Bowl to the southwest.
		The important point is that the Eagle Ridge lift must not and does not ease the difficulty for skiers to access the out of bounds terrain behind Marmot peak, or the upper part of Whistlers Creek.
	www.ceaa-acee.gc.ca /010/0003/0026/Marmot_summary_e.htm (12016 words)

	GGC - Lift in Gliding
		Ridge lift, being more predictable, was the first form of lift discovered.
		This form of lift is obviously limited by the length and height of the hill, and the wind, but can be a trigger for thermal lift.
		To use this lift the glider needs to fly within the cloud, which is illegal in Australia, but often practised overseas.
	www.gliding-in-melbourne.org /lift.htm (1247 words)

	1998 Flight Details
		The wind was strong from the SW and I hit a small patch of lift that carried me the last couple of miles to the airstrip in the center of the valley.
		As I flew from ridge to ridge, my climb rate tended to be slow, and I spent a lot of time searching the incredibly remote, steep canyons for my next lift.
		The ridge lift was fairly easy to stay up in, with some thermals that would blow through once in awhile.
	www.gliderpilots.org /crescioli/details.htm (11335 words)

	Soaring Australia - Gliding - Solar Excitement (Site not responding. Last check: 2007-10-19)
		With a long ridge, it's possible to do large distances without turning, generally flying fast and low to stay in the best "lift" close to the ridge.
		Similar to ridge lift is a phenomenon called "wave lift".
		Often, this form of lift is capped by a cigar shaped "lenticular" cloud.
	www.soaring.org.au /soar.shtml (561 words)

	Kevin Carter's Blog: June 2005
		He came off the ridge a couple K north and just flew faster to pass me. I am much higher but it is too late to trade the altitude for distance.
		The clouds along that ridge were a sight to behold, and the gliders ahead marked it clearly.
		Lift was strong but not as strong as during the first task.
	xckevin.blogspot.com /2005_06_01_xckevin_archive.html (9277 words)

	Soaring a Colorado Sinkhole
		While lift is often good in the urban Denver area, this airspace monster is large enough in diameter that few gliders choose to overfly it, as it tops out at 12,000 feet msl.
		The source of this lift is, I imagine, cool air sliding down from the mountains displacing the warmer air over the plains.
		Another evening phenomenon is gentle ridge lift on the east (shady) side of the foothills, often reaching several hundred feet above the ridge.
	www.milehighgliding.com /common/sinkhole.htm (3189 words)

	Working with Thermiek - Part 2 (Site not responding. Last check: 2007-10-19)
		Although type 1 lift is most suited to simple ridge lift, you can use a street of type 1 lift with clouds, set the ideal wind direction for each differently, and by having a steady wind in FS, you will have lift along the cloud street that can easily be varied between nothing and +10kt.
		Areas where lift would be found and the strength of lift within those areas would properly change with the wind settings in FS.
		The beauty of "today's lift" is that the project (.prj) once saved in Thermiek can be used to change, scramble or keep anything in the current setup.
	www.virtualsoaring.org /library/How_to/Thermiek/Thermiek_2.htm (983 words)

	Northern California Slope Sites
		Most lift is ridge, but occasional major lift is due to a "shear" effect and is difficult to predict.
		Normal source is ridge lift off the seawall and the adjoining low hills.
		But when the lift is good (which I think it frequently is), you'd have to have a pretty good excuse for losing it in front.
	www.geocities.com /hotyerd/planes/slopes.html (5566 words)

	Moby Disk's Flight Log
		Lift was gone, and I wasted altitude fumbling with the camera.
		Due to the cross, everyone had to fly along the ridge to the SW facing side to catch the ridge lift.
		Made it back to the ridge but I stupidly turned into the trees and decided to provide tree rescue practice for the clubmembers.
	www.mobydisk.com /mobydisk/hanggliding/flightlog.html (944 words)

	FAQ (Site not responding. Last check: 2007-10-19)
		Ridge lift is where a significant wind encounters a near vertical ridge of terrain at a roughly perpendicular angle to the ridge.
		Like ridge lift, a wave requires a significant wind to exist, along with some other conditions.
		Wave lift can range from a few hundred feet per minute, to thousands of feet per minute, and in both cases the rising air is extremely smooth.
	www.mindensoaringclub.org /pages/faq.htm (1158 words)

	M-ASA Newsletter, February, 2000
		Today the ridge was working, but not very well, since I was down to about 100' over the crest before I was able to sustain at 70 knots.
		Often these ridge thermals mark a lift street which one can run into the wind without loss of height, and one of these allowed me to cross the river and take the bridge photo before cruising back to the ridge again.
		I arrived just at ridge height and was able to maintain 1500' by slowing to 55 knots, which is the minimum cruising speed if one is to have enough control to maneuver, should one encounter gust and down currents over the trees.
	www.m-asa.org /convector/conv200002.htm (5944 words)

	Chilhowee Stories - Brad Kueven (Site not responding. Last check: 2007-10-19)
		The ridge lift was not "working" but the mountain was generating enough thermal lift to let me fly up and down the ridge until a really good thermal cut loose and took me to cloud base.
		The ridge was a source of consistent, predictable lift and I found it hard to leave.
		The mountains seemed upset that I had left because on my return the hawks had left, the "cues" were gone and there was no good lift to be found.
	www.chilhowee.com /july4th.html (754 words)

	Hang gliding - Open Encyclopedia (Site not responding. Last check: 2007-10-19)
		In flight, conditions can be either soarable or not soarable (flights in non-soarable conditions are referred to as "sled runs").
		Soaring flight can be sustained generally through thermals (caused by solar heating of surface air) or ridge lift (caused by wind rising over geographical features), or both.
		Flights powered by ridge lift are generally confined to the vicinity of the ridge (which can be very high and long in mountainous regions) or coastal cliff, while thermal flights can extend over great distances and reach thousands of feet in altitude over mountains and flatlands.
	open-encyclopedia.com /Hang_gliding (1158 words)

	Cloud Dancing
		Until then all gliders flew using "ridge lift" - the lift created when wind hits a side of a mountain ridge and the air is deflected upwards.
		The third kind of lift - "mountain wave lift" - was first explored in the late 1930s, but not thoroughly understood until after World War II.
		The surging buoyancy of moments before was replaced by the feel of straps pressing into his shoulders as the plane accelerated down toward the east side of the ridge slope, trapped now in crushing sink.
	www.netlabs.net /~richieb/cloud_dancing.html (773 words)

	First Ride to Cloudbase (Site not responding. Last check: 2007-10-19)
		Stuck a wingtip into the trees (this is the Hang Lying section, isn't it?) to try to get some ridge lift, headed over to the house thermal east of launch and got some comfortable altitude.
		I didn't have the (pick one) guts/sense/experience/neck/ to dive across the valley to the next area of lift.
		Of course, the only reason for his lowly position in the sky was that the lift broke up while he was hanging around throwing his Hang 2 protegés off the cliff.
	www.buffam.com /Cloudbase.html (282 words)

	Chilhowee Gliderport Stories (Site not responding. Last check: 2007-10-19)
		Our second flight was about 1:40 and it too was marked by consistant ridge lift.
		We made it up and down the ridge several times and had a great view of the frost covered treetops.
		I spotted the bald eagle, too; found that watching an airplane (Katana) float by with fixed gear and a stopped prop is weird; and also learned that you never say "hey Discus, I'm about to pass" when you're flying a Blanik- it just goads them into a 120kt run away from ya.
	www.chilhowee.com /chilblah.htm (384 words)

	Dynamic Soaring
		The direction and angle of the arrows indicate that the wind is being deflected upward by the presence of the hill.
		The upward component of the movement of the air is what lifts a glider flown on the left (upwind) side of the hill, and is referred to as ridge lift.
		In SSW to SW wind (typical spring-summer direction), Shell Ridge is DS-able in two separate areas of the ridge, and is pretty consistently DS-able during the spring/summer/fall.
	www.geocities.com /soaringbythebay/dsoar.htm (1182 words)

	SkiNet.com \| ResortFinder (Site not responding. Last check: 2007-10-19)
		The concept for the new chair lift and terrain was first approved in 1990, but took a number of years to complete Forest Service and environmental studies before the expansion could become reality for this season.
		With a national trend toward resort consolidations into major corporations, the Dodge Ridge expansion is unusual and important in the ski industry and to the sports' participants.
		The entire Dodge Ridge lift system will jump from a carrying capacity of 13,600 per hour to 15,700.
	www.mtnresorts.com /rdbase/resort.cfm?sc=ski&SkiResortID=20 (795 words)

	Using ridge lift to fly model/paper airplanes \| Ask MetaFilter (Site not responding. Last check: 2007-10-19)
		Using ridge lift to fly model/paper airplanes
		It would be held aloft by the air striking the board and could be steered by tilting it left or right.
		Ridge lift is a lesser know way of flying gliders (thermals are probably the most popular).
	ask.metafilter.com /mefi/15569 (445 words)

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