Can gliders & sailplanes fly backwards?
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- Опубликовано: 10 июл 2024
- Can a glider fly backwards? In some cases yes! Here's how we did it on a wave day. We also have a look at Lenticular clouds, how the wind flows through them, and a glimpse of one of the rarest clouds ever seen...
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00:00 Getting lined up into wind
01:05 Going Backwards
01:26 Flying around lenticulars
02:25 One of the rarest clouds ever 
Наука
An instructor of mine, in the early 1970s, got his whole Silver C in one flight while flying backward!
Knowing there was a northerly component to the wind he pointed his nose north of west and, after flying the Pennine wave above a slightly broken sheet of cloud for 5+ hours, discovered he had descended far enough to the south for the distance requirement.
Awesome :)
The first time I got next to lenticular cloud, I could see the wind running through it and watch the water condensate on entry and evaporate on exit. Blew my mind! Wave flight is amazing and thank you for showing us these wonderful cloud formations.
Agreed! In some bizzare way it could be described as boring, but so many beautiful and interesting things are going on there. And flying in NO turbolence.... In spite some people describe it as boring, it brings a very different sets of challenges. I enjoy it!
Thanks for sharing!
Yeah I love that smooth air :)
Here I was thinking you weren't going to be lazy and get stuck into modifying the tail into a canard, and reshaping the wings...and...oh yes the tow hook needs moving to the other end.😂
haha tempting :)
That is so cool. While I am positive we aren't going to do wave my first time out I can't wait to take my glider intro ride this year.
I have flown my RC pure sailplanes backwards when the wind suddenly came up, you don't want to stall it and crash it, but you are also getting more and more upset because you are going to have to walk a long ways to get it back once you manage to land it when it is flying backwards at a rate of 10 knots and you were a good 100m or more up when the wind started.
Phenomenal, Tim!!! Surreal surfing backwards in a glider. Keep going with the great stuff from your Channel.
Thank you Miguel!
only did this once, was geo stationery throughout the whole climb to 25000 ft over Nevada sitting at circa 80 kts to prevent going backwards - it was like riding the world's quitest smoothest elevator - I remember it like it was yesterday even though it was 2008, good times
if i fly and see clouds i never see before i am getting the heck outta there to land haha!
😂
Love the ending - heavenly!
:)
I’ve ‘hovered’ a Cessna 152 using the same technique but the best I’ve done with my K6 was very nearly fully stalled and STILL climbing at 5 knots!
Apparently it looked “Very weird” when viewed by another nearby glider. 🤗
I bet! Cheers
Beautiful!
Thank you! Cheers!
Incredible good stuff thanks
Very welcome
There was a flying day at Shuttleworth and the Moth pilot demonstrated a slow pass that was almost stationary due to the wind. I think they stall at about 30mph.
Hello! big head down under
swe here
love your channel
I feel free when I watch
Wish I could fly ;)
You'll have to go try it out, find a gliding club near you!
Love the visuals of the turbulent lower orographic cloud forming compared to the upper lenticulars.
Always found it interesting that wind speed at any altitude is true airspeed, not indicated. Makes punching into a 40kt headwind easier at say 20k ft vs 10k ft (but harder to get negative groundspeed)
phenomenomenomenomenomenomenomenom....enal video as usual :-)
lol 🤣
I got sucked into a lenticular once in that i flew slower than the wind speed and the cloud built up around me. Lenticulars look stationery but when up close the leading edge is constantly building whilst the trailing edge decays.
Yeah good point! And they can grow and shrink too as the moisture levels in the air change. Cheers!
I was flying at 13500 pointing at a town in the distance. All of a sudden, my moving map flipped 180 degrees. The wind aloft was about 50kts and I was slower
Story of my life. Full speed ahead (good luck with that)
It is not at all difficult to fly backwards in a Paraglider, with its low top speed.
But that’s when you start sweating bullets if you’re flying in front of a ridge and the wind has just picked up beyond your top speed, because you know that you’re about to be blown over to the lee - side where the deadly rotor awaits!! 😱
That is one of the reasons that Gliding is safer than Paragliding: *In an ever changing atmosphere, speed is safety!* 👍
@Johan-ex5yj= There is an intermediate between the paraglider and the glider : the hang_glider.
The top speed is about double that of a paraglider: this is a safety feature in case the wind picks up. The HG community uses many of the same spots the PG uses; the lifestyle is similar.
Glider pilots are a different breed, much closer to GA pilots.
I've been following hang_gliding for decades (after having flown for a couple of years before marrying), and I don't understand why there are not as many HG pilots as there was twenty years ago: it is so wonderful flying hang_gliders!
@@christianfournier6862 That is correct, HG is safer than PG in that respect. 👍
Flying backwards cool yes. But here is the real conundrum. Could you therefore theoretically land going backwards, if the wind near ground was strong enough?
Great question :)
Ah yes, defying the laws of physics. Those yaw strings are really paying off. Only $.01 and now you can fly backwards!
If only my fuel tank fills up as I go backwards
@@PureGlide Haha, that would be great :)
🛫📖🛬
Hello Tim,
You are having too much fun.
Just curious;
Approximately how much time do you get to fly and log each month?
Always looking forward to your uploads.
📖🛐✈️🇺🇸
Hi thanks for watching! I think on average I do about 120-150 hours per year of flying. Most of that over summer. In winter I generally only fly on good ridge or wave days, which can easily go a month without. Cheers!
@@PureGlide
Thanks so much for the reply Tim.
It's such a pleasure to fly along with you in your "jump seat" (lol) and enjoy the beautiful
panorama of your country.
And BTW:
Enjoyed your DME track over the ground.
Brought back a lot of memories of being a young cadet and enjoying playing with the wind and watching the traffic leave me in the dust on the ground.
My instructor used to say you got to get good at slow flight before you can go fast.
Best regards Tim
Are you able to get into the jet stream or is that just to high?
According to google, the jet stream starts at 9km, which is about 30,000 feet. Most gliders oxygen system is only good to about 30,000 feet and going above that starts becoming dangerous if anything goes wrong. The pressurised glider Perlin, can go higher and might even fly in the jet stream deliberately. So I’m conclusion if your oxygen system supports it, yes you can!
Beats England for the conditions by a country mile.
Sure, just play the video backwards... :-)
😂
Arr that was a missed opportunity...write that down Tim and do it in a few years, when we all will have forgotten about this one here. :)
@@blubb9004 In all seriousness: I just found out that with _parasailing,_ the wing actually does fly backwards (versus air) when the wing is stalled.... (OMG...)
Fixed wing powered pilots, Lenticular not going near that stuff, glider pilot woohoo? :)
Exactly right! Although the lenticulars are in laminar air, so that's normally just fine to fly near. Just have to watch the strong wind. It's the lower rotor clouds to be very wary of. I only fly through them if I have to and am feeling a bit crazy... basically if the cloud looks rough, it likely will be!
A glider absolutely cannot fly backwards. You can though be flying but moving backwards over the ground relative to your heading. Have done this in the Kaimai wave myself and also seen videos of commercial aircraft landing backwards at Wellington (relative to their heading and the ground) but the aircraft is still flying forwards through the air (the domain in which it operates0
.
You haven’t done enough tail slides Dennis :P
@@PureGlide That is true, none in a sailplane but two in hang glider ;-) How many have you done Tim?
In a hang glider it was instant nose down and no problem, in a glider who knows, maybe the wings break?
The main problem from what I understand is the controls hitting the stops too hard, and as I like my glider I have never tried it :)
@@PureGlide Good choice. If it happened to me accidentally I'd probably try the air brakes first followed by the ailerons. Probably an aerobatics pilot knows the best option.
I think you’re meant to just grab the controls and hold them as tight as possible, maybe at the stops(?), so they can’t slam on you as you slide back. Not sure!!
1st
Niiiice
@@PureGlide hahahaha love your channel seriously can’t wait to get back into training again and you inspire me every time you put a video out!
@@eggmcnog Great to hear!
That is irresponsible flying - I don't see any backmirror! Or do you have someone standing behind your aircraft making sure, that no one is in the way? 🤣
Didn't you hear the beeping?
lol
@@BruceHoult Damn you have really played the humor game to the end, kudos Bruce!