awesome explanation, live in the glider! thanks so much for all the education you do, as a newbie I feel like I have all the tools to progress much faster than it was possible 20-30 years ago.
fascinating stuff, yes that warning light on the nose is fantastic, I was flying a cloud street once in the Ardmore valley toward Hunua ranges just merrily skooting along in my K6 when another K6 came head on at me out of nowhere, no time to do anything, just hung on and hoped we missed as we did, but only I would say about 50 feet clearance as they shot over me phew!
Hoping to start my adventure into glider flying next month in the UK. Your channel is invaluable to the lead up to me starting training. Quick question to all, how do you rate using a flight sim when you can't get out and fly for real? Cheers all and safe flying 😎
Awesome to hear! Glad you're enjoying the videos. Yeah a flight sim is useful especially for practicing circuits, and your radio calls and checks. I made a video about it, look up gliding simulator on my channel
Challenging teaching - thank you very much. I had a conversion line in Spain (Fuentemilanos) when I did my Silver C distance flight. It was wonderfull - flying a plane with an engine without an engine... 🤠
This is something I've been strugging to understand by reading theory, but watching the vid really lays out a real world example very well. thanks and cheers!
I was watching the altimeter unwind as you approached the mountain. Just made it, close. Good info watching the conditions & able to see the instruments a bit too.
Ahh! Good Stuff & Thanks Tim! Got my butt into a Glider last weekend for the first time in 22 years! Freaking loved it! Man I missed that feeling so much! Cheers.
Very interesting. I have cousins in N.Z. One of them is involved in a gliding magazine. (I don't want to name drop.) Gliding fascinates me. How you read the skies to find the best 'roads' is amazing to me. Thanks for sharing.
@@PureGlide Good guess. I'm her first cousin on the Barnes side. Would love to go gliding with her sometime. (Or you. 🙂) Or anyone who is willing to take me up to be honest.
Best video you have done. I am in Philippines mostly sailing but have just found Tuy here is an airstrip with winch and 4 or 5 gliders. Will go for a fly soon.
In the US, the FAA wants 2000 feet horizontal offset from cloud. We're not supposed to fly in the notch near the top of the step like you do at 6:20 . Lee convergences do not present this problem.
Hi yes it's a problem in most countries. In New Zealand we have cloud flying procedures which do make flying up to cloud bases and edges legal. I made a video about our cloud flying rules here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Kpwrdyvjy3M.html
Great stuff. Thank you for the explanation and the videos. Quick question... on your final glide, do you aim for a straight in approach. At my club we practice ending the final at circuit height. Any concerns about safety marging? Thanks again.
Hi we use a 3km finish circle ring with a min height, then I will usually land straight in. In one of those shots we had a mountain in the way so had to go around that :)
The Lee Convergence is very interesting, Tim! At first it did not make sense to me that the same air mass colliding with itself will create lift? But when you said at 2:40 “trigger thermals in a line”, then it made sense! So we know that lee side thermals develop because air can heat up on the side of the mountain that is sheltered from the wind, but it needs a trigger to get it rising. Along comes the wind wrapping around the mountain and in a “pincer movement” forces the hot air to rise (almost like a DOUBLE convergence?). Does that make sense?
Air colliding with itself after wrapping around a hill is exactly the same as two different air masses meeting. It doesn't know any different! And if two things collide the only place it can go is up. And yes definitely wind shadows can help cause thermals, but that depends on the shape of the terrain. A perfectly conical or round shape won't have a wind shadow, just like you can blow out a candle behind a wine bottle.
@@PureGlide Sorry, I don’t agree. The same air colliding with itself (without any warmer less dense air in between) cannot produce the amount of lift that you are flying in there. (Maybe something of the order of ridge lift) As in a Sea Breeze front, you need colder (denser) air to cut in under warmer (less dense) air to produce lift that goes much higher than the mountains.
You might well be right, maybe it's more about a lower wind speed where the two winds meet, that allows thermals to trigger. It's hard to imagine two masses of air meeting at different angles don't create some sort of up force. This has a nice diagram of how air can work around a isolated peak www.nwcg.gov/publications/pms437/weather/estimating-winds-for-fire-behavior
Awesome video, thanks for the explanation. Question, under the street or converging area, if you do the dolphin thecnic you will be able to increase the average speed or just flying straight below the street doesn't has much difference?
Great question, I tend to slow down under convergences, because there's usually not much sink, and being slow in sink is the worst! Going slower let's you climb. In general I avoid giant big pull ups, partly because there might be someone above you, partly due to the drag created by big control movements. So a slow down to make the most of the lift is what I suggest. Unless you're already plenty high enough, in that case go fast!
@@PureGlide I assumed that question was asked before. And you made a complete video, thanks! (Sry could have searched by my own, but wasn’t assuming you covered that in a video)
