How can gliders fly without propulsion | The most complete explanation
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Published 2019-08-22
Another interesting video: • Military Aviation History in 12 min |...
Special thanks to Stefan Langer, a professional glider pilot who provided live action footage of real gliders. Visit his channel youtube.com/user/SLSoaring
Gliders are airplanes heavier than air that can be kept in flight without an engine. How can you fly without an engine? That is what is explained in this video in addition to several curiosities about these aircraft.
According to Wikipedia a glider is a fixed-wing aircraft that is supported in flight by the dynamic reaction of the air against its lifting surfaces, and whose free flight does not depend on an engine. Most gliders do not have an engine, although motor-gliders have small engines for extending their flight when necessary by sustaining the altitude (normally a sailplane is on a continuously descending slope) with some being powerful enough to take off self-launch.
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All Comments (21)
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Am I the only person who thinks we lost something when we lost the cheerful - sometimes quite stunning - colour schemes of the old gliders? Boats are GRP and they're turned out in range of colours. Its all in the Gel coat anyway. Hell - Its actually easier to recognise at a tiny glance something which is day-glo Pink or Orange, or even gloss black isn't a cloud. And if its near you that has to matter. So why has it changed?
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I thought this was Real Engineering based on the thumbnail
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As a glider pilot I am constantly trying to explain it to friends etc. A great video that explains the basics in a simple clear narrative, even includes “wave” explanation which I never attempt to try and explain to non pilots.
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It's fantastic how with all the aviation technology that has been developed over the last 2 centuries, the best way to monitor relative airflow in a glider is still to just tape a piece of string to the canopy.
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Took my license i Sweden as a 16 year old. Today I am 57… Best video I have ever seen! Thank you! 😄
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Incredibly well done, I am very impressed by the graphics and the content, thank you
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I flew in one when stationed in Germany during the mid 1980s. They had a Chevy v8 at the end of the field, approx. 700 feet away. It had a rope winch to launch the bird into the sky. Believe me that is some kind of launch! Dead start to heart attack, what feeling. It cost me approximately 10 dollars for 20 minutes. Pure quiet, except for the slight wind. Soaring up and looking for updrafts, etc. loved it, loved Germany and other surrounding countries to travel.
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How to make gliders go supersonic: step 1, approach a strong tornado
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One of the best videos I've ever watched on YouTube, felt like I should share this to all of my contacts! Thank you!
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Belive me: A start from a winch is quite an experience. I grew up with two PPL pilots and flew sometimes by myself when in the air. 1. When the thing starts and your head is not in the back of you seat, it will smash in the back of you seat. it hurts!!! xD 2. If the plane starts climbing, it does not do that softly. it just feels like you're in a rocket launch (up to 2.5g) straight up in the air. 3. because winch starts ar tipically on a mountain plateau - even if you're just 400m above the airfield - your first view is down the whole valley - and that can be fucking scary! Because what you're seeing is the hight to the airfield (400m) + the whole hight of the mountain plateau (X) So just 30 seconds after smashing your head and having a rocket start, you find yourself in a absolutely silent, 2 cm thick nutshell in 1.400m above the ground... I LOVE IT! :D That moment when the pilot releases the rope...everything turns silent and you're just sitting in the air, free to do what you want (for a few minutes)
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Gliders use 'the force' and all glider pilots are Jedis. The End. ;)
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So, they are flying longboards.
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Did I searched for it ?? No Did I watched it till end ?? Yes
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this episode of real engineering... wait
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I got my glider pilot license this year and it is by far the most fun i have ever had! I fly the sgs 233-a wich admittedly isnt the prettiest but lots of fun.
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Thanks for the nice graphics and demos. I flew gliders for a couple of years in N California. Ridge lift, thermal and occasional mountain wave. Loved it. I also built and flew RC Gliders. All fun!
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My first real glider flight was so great, I'd only flown in prop driven planes etc. and it was so silent and peaceful by comparison. Learnt to thermal on first flight. Being towed into the air is kind of a strange experience, and when you land you are so low to the ground on the runway...
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Best thing in the world. Flying as a passenger is cool but just staying up there for 4 hours by yourself... thats another story
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6:23 you don't have to put weight in the wings. Water ballast is used when the weather is extremely good so you can fly faster. It essentially shifts the entire polarity of the glider to higher speeds, so you have higher efficiency at higher speeds, the drawback is that it is harder to gain altitude. This is however not really common practice as it is rarely practical for most pilots, many high performance planes with engines are already heavy enough so water is not used that often. cheers!
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the answer: Magic
