I'd try to exploit 2 things: 1. the quality of the forward swept wings to not drop a tip at stall. 2. the "box effect" of sponsoons placed at wing tips, that prevents the air to escape laterally over the wing tip, from underneath to the top of the wings due to the pressure difference. Preventing that pressure loss greatly enhances the efficiency of the air cushion trapped between the ground and the wing. You need your vehicle to be penalised, by stalling, every time it wants to gain height. So you give it just enough throttle to sustain lift in ground effect, and when it tries to rise, it will stall immediately. But only the roots of the wings will stall (because they're swept forward), and the tips not, thus keeping the wings level. It will not drop a tip, it will not touch ground (or water). The nose will gently bob down, and the vehicle will lay on its cushion of air again. Basically, there are two negative feedback processes at play: when it tries to rise, is penalised by stalling, and when it tries to land, is penalised by the sudden increase in the air cushion's efficiency.
DJ BIS 🔴 What Is Islam? ⚠️ 🔴 Islam is not just another religion. 🔵 It is the same message preached by Moses, Jesus and Abraham. 🔴 Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God. 🔵 It reminds us that since God created us, no one should be worshipped except God alone. 🔴 It also teaches that God is nothing like a human being or like anything that we can imagine. 🌍 The concept of God is summarized in the Quran as: 📖 { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4)[4] 📚 🔴 Becoming a Muslim is not turning your back to Jesus. 🔵 Rather it’s going back to the original teachings of Jesus and obeying him.
The dog probably slept 12 hours straight after chasing that around. Really nice. So simply designed yet stable and multipurpose. Imagine that with a seven meter span, seating for four, glass bottom, cruising around the Maldives with tourists that want to visit every nice reef in a day...
Four years later this video comes up on my feed. I like this idea! Looks like something that I could build out of stuff that I have sitting around my house. Looks to be a great project for the snow season.
I've been wanting to make one for a while. From previous reading, there are a couple things you can do to improvement performance. First, the ground effect height is directly related to wingspan. Making a wider wingspan will increase the ground effect altitude. Also, the wing tip height in relation to the body make a significant difference. The tips lower the effective overall height. Look at the Boeing Pelican, Caspian Sea Monster (Ekranoplan), and Flarecraft. Their wingtip pontoons weren't only for floation, they were to increase the height of the effective ground effect height. To operate best, you should design for an altitude where the body/fuselage is as high as possible, while still in ground effect. For this kind of application, aim for keeping everything off the snow, ground, or water. If you need a 20 degree roll for turning, make sure that won't put the wingtip into the ground. Look at the "Flarecraft". Their pontoons are inboard about half way, and low. When turning, the entire outboard part of that wing is parallel to the ground, again creating ground effect lift. If you were feeling *really* ambitious, you could actuate those outboard wing segments, keeping them at the same angle relative to the ground, regardless of the aircraft's attitude. Look at the XB-70 Valkyrie, specifically the articulating wingtips. It was doing the same thing, but riding the supersonic shock wave. There is a ton of exploring that can be done with that. I'm honestly surprised that we don't have more ground effect vehicles, considering how much is saved while operating them. They don't need a robust buoyant fuselage, full size airplane wings, nor anywhere near the same required thrust.
if the padding below the plane was in a V shape just like ekranoplan and boats it may easy the drag while keeping the craft close to the surface, it may easy the drag on land too
Not gonna lie, that is impressive. It has great evasive ability against naturally occurring tamed arctic wolves, and has impressive stability and dosen't look like it stalls easily. It is also great at crashing, driving, flying, boating, or submarining.
Man Daniel, I am always happily surprised when I see a new video for you. Aside from the great rc adventures and experiments, the cinematography adds all the more to videos. Multiple camera setups, onboard shots, great editing, and really cool venues. I built Daniel Madigal's Gamera hydroplane and it flies very well in ground effect, but not quite as good as yours, great job and keep the vids coming.
My first inclination was two sticks slung below the sponsons; just as you did! I dare say the instability issue with ground affect vehicles has been solved. Now it can move on to more widespread commercial use
@@giornogiovanna3446 then how to say it? Obviously he did nothing with the idea cus he's 14 and the idea sucks. Watching a video where basically the same fucking thing is beeing shown is not getting an idea.
@@melvinjansen2338 You're an asshole. Especially if he's 14. "How to say it" - don't. No need to be a dick. If he has an idea let him explore it, maybe he'll find out it's not a great idea if it is not, but the only way to gain experience is to fail. I've failed many times, you surely have too. And if you don't change your attitude, I just hope you're never gonna have children. NOBODY deserves to be struck down.
There must be an unimaginable frustration trying to get this to work in public and everyone watching it like wow that’s cool and you knowing it’s not even half way there
It reminds me of Russian designer Alekseev. ruclips.net/video/x22nVFTd8nI/видео.html&lc=z22ut1rpjrmksdrxp04t1aokgmov2u4sdaimce4ev41cbk0h00410.1558770812827668
I once made a small flying wing with the gear from a Parkzone Ember 2. It didn't have enough power to haul it properly into the air and so it took advantage of the ground effect. Planes like these are called ekranoplans I believe.
You know, thank you for making this video. It has reminded me of my ground effect project I did back in Grade 5 in like... 1993... I think. It was a fully built nitro aircraft (No electric then) that had a t-tail with two booms, similar stubby fat wings with 'wing tip scoops'. I even entered it into the science fair then. lol. Wish I could find pictures and video of it. Your craft reminds me of a model I had years later... maybe 2005. Which was a RC 'boat' that looked like a hydrofoil, but was just a foamy with lots of power. It flew like a box, but was fun... very fragile! It was kinda like that 'Airship F4'
@David M yes that silicone type that can be poured is platin based , expensive but useful when the prizes is worth the cause (and often you dont need much) There is a company from the US which has worldwide local supliers i can recommend its called www.smooth-on.com Click on find distributor (I bough mine from www.kaupo.de)
Just so everyone knows... Ground effect is not when an aircraft glides on a cushion of air. Ground Effect occurs when the ground disrupts the wingtip vortices and therefore less drag and downward force is applied to the aircraft.
I hate typing. You LOVE a good review.... Its worth the time on the keyboard to to discover that you can't find words that express how impressive your device works! It started ouut in the snow. Then INTO the water! From there, what next? Wow, right into the air...!! reallly, Mr.Lucky >>> you have gained many accolades for all of your FUN WOORKS!!1 ; Thanks for taking us all along with you! Arn
ground effect vehicles are really fascinating to me, i really wanna get into diy rc planes so il definitely try making mow own ground effect thingy some day
Great vid. I love how still the water was. Usually when I go to our float and fly the waves are up making things difficult for take-offs. If I made something like this it would have to be much bigger to handle the waves.
Real live action dogfight -- I could not help imagining myself flying a Spitfire, having that collision and seeing the ground come up to meet me in the last instant of life.
Its an ekranoplan. Made one of these out of cardboard and hot glue with no motor no movable control surfaces. It would glide all the way across my friends long garage just under an inch off the ground. Try putting a large horizontal wing pointing slightly up on top of the rudder. helps keep the nose down which is very important in optimizing speed and stability in a ground effect vehicle.
It reminds me of Russian designer Alekseev. ruclips.net/video/x22nVFTd8nI/видео.html&lc=z22ut1rpjrmksdrxp04t1aokgmov2u4sdaimce4ev41cbk0h00410.1558770812827668
I love how the ducks at 2:35 look like they're just so used to stuff flying towards them for no properly explained reason that they don't even get startled anymore XD
+Julius Nyangoro That's the Russian ground effect vehicle they made for the Caspian Sea, not the name for this whole class of ground effect vehicles. The Russian one is very cool though.
It "leaks" as you probably know. From the ends when it does the gradual turns. Having "skis" or bigger endplates fixes that probably. Keep it up, fun to watch
Challenge: Build it with only one central sled in the center of the belly instead of two. Keep it thin and make sure the wings can withstand the occasional bump on land. The central sled would eliminate excess drag as well as keep it from dragging to the side when on water.
Outstanding creativity. I have seen some of your other videos and you never fail to impress me with your ideas. I started as an RC modeler myself, and it lead to a career as an engineer that has been very rewarding. Keep up the good work.
dude the stuff you make is awesome... I used to want to be an aerospace engineer. I used to have a wind-tunnel at school that we could put models into and I came up with a "perfect" airplane/glider I just called it the X wing and well I made it out of balsa wood and some jack#### stepped on it on purpose while we were testing it lol
YES BRO YES! You are taking advantage of a very very neat aerodynamic ground effect!!!! Keep up the good work!!! I bet something like this will revolutionize snow/sled travel!!! Keep up the good work!! Mad Props!
This is an old video - but the principle of "wing in ground effect" is you're leveraging high and low pressures created by LIFT. It would appear that your airfoil is just a flat piece of wood which supplies minimal lift; most of opposition to gravity being the angle of thrust of the propeller. It would had more of a traditional airfoil creating some lift - you'd probably have a better effect. Just thinking.....
It's interesting to see these vehicles in operation. I was fascinated by the Russian experiments with it decades back. It's funny seeing something with a bunch of big engines and tiny wings designed to barely lift off the ground.
Wow! I have never seen it shown like that! Planes usually flare themselves slightly on landing too (What pilots call ground effect) I have heard of super long range airplane/boat that might be using this soon. It's not fast but very efficient. Much needed technology if you ask me.
If you look at seaplanes ,they all use a v hull with a "step" at the rear to break away from the water. You may want to try incorporating that on your design. The hydroscopic force, of water, kinda sucks it down or holds it into the water, until enough lift or thrust is applied, and then it pops up all of the sudden. With a V hull and a step, it should lesson the effect. Hope that helps
Try introducing a small amount of under-concavity [under-cut] to the wing. Design the under-cut from the wing tip and back in as far as you can manage with materials. A good rule of thumb is maintaining a 1/10 ratio of under-cut to cord. Make sure there is NO under-cut near the pontoon as measured from wing-tip-outboard within a ratio of ~5/8 the cord as measured at the middle of the pontoon. Undercutting a wing too close to the pontoon can result in unwanted tip-stall characteristics at ground-effect-cruising speeds. In terms of pontoons, try introducing a step design. The general rule of thumb is 1/3 to the front, 2/3 step up in the rear. Based on experience, if you're trying for a high efficiency skimmer, start at 1/3{}2/3 and slice off some material (incrementally). Your prop angle looks very good for a start. NOTE that as you decrease surface drag (with under-concavity and pontoon stepping) you will need/want to decrease your prop angle to achieve maximum ground effect loft and efficiency.
That's pretty cool. You oughta fabricate a design using the reverse delta wing with dihedral wingtips outboard of the sponsons and a T-tail to keep the nose down. That seems to be a pretty stable configuration for WIG vehicles. The dihedral wingtips give it stability in roll to counter the anhedral of the reverse delta inboard of the sponsons, and the T-tail gives it stability in pitch (and yaw) to counter the nose-up pitching moment induced by the main wing. I'd be curious to see how the functionality of that design scaled down to a craft of this size.
It needs V hulls - that is why it goes so good in a wide turn on one hull - you are using the side of the those sticky flat bottomed hulls. Flat is good for snow.
I really wish that there were more RC GEV videos around, because I really like the concept, but no one has seemed to have experimented with it except you and a few others.
Nice. Yeah, another way to demonstrate ground effect is to hover any R/C heli at eye level, note the throttle used, and then go to an inch off the ground and you'll see a huge difference in the amount of power used.
Two things: square wings have a very unstable Cm. Better to use a reverse delta. Without a high T tail (flying out of GE) the longitudinal phugoid motion is always present and it becomes uncontrollable when the speed is increased.
It would be a cool idea to make the hydrofoil pull the plane down somewhat. This would mean that an equilibrium of lift from the wings and downward force from the hydrofoil would be met due to the increasing ground effect the lower it flew.
The ducks in this lake really don't give a shit.
3zuli They give a shit alright they are protecting their defenseless baby.
+RWS Browning hahaha oooh okay hahaha makes sence both ways
Talk about missed oppurtunities. They dont give a duck!
Lol those ducks at 2:36 completely not arsed about a ground effect vehicle whizzing by! 😂
I'd try to exploit 2 things:
1. the quality of the forward swept wings to not drop a tip at stall.
2. the "box effect" of sponsoons placed at wing tips, that prevents the air to escape laterally over the wing tip, from underneath to the top of the wings due to the pressure difference. Preventing that pressure loss greatly enhances the efficiency of the air cushion trapped between the ground and the wing.
You need your vehicle to be penalised, by stalling, every time it wants to gain height. So you give it just enough throttle to sustain lift in ground effect, and when it tries to rise, it will stall immediately. But only the roots of the wings will stall (because they're swept forward), and the tips not, thus keeping the wings level. It will not drop a tip, it will not touch ground (or water). The nose will gently bob down, and the vehicle will lay on its cushion of air again. Basically, there are two negative feedback processes at play: when it tries to rise, is penalised by stalling, and when it tries to land, is penalised by the sudden increase in the air cushion's efficiency.
Its the way the centre of pressure moves as the wing leaves ground effect - not quite the same as a wing stalling in freestream air.
This made me want to try to build one
Good catch on installing a fin on the underside of the wing at the tips to enhance the "ground effect".
Those damn ducks are hella confident!
I mean, the thing does look like a duck coming in for a water landing.
"Quack, quack, that a fast duck,"
DJ BIS 🔴 What Is Islam? ⚠️
🔴 Islam is not just another religion.
🔵 It is the same message preached by Moses, Jesus and Abraham.
🔴 Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God.
🔵 It reminds us that since God created us, no one should be worshipped except God alone.
🔴 It also teaches that God is nothing like a human being or like anything that we can imagine.
🌍 The concept of God is summarized in the Quran as:
📖 { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4)[4] 📚
🔴 Becoming a Muslim is not turning your back to Jesus.
🔵 Rather it’s going back to the original teachings of Jesus and obeying him.
@@ahmdabdallah2132 who asked for your spam?
Literally nobody.
So pretty please piss off.
@@ahmdabdallah2132 NO.
Nice camera work, the dog footage is gold!!
Or is it Golden? Ha.
Always interested in what you come up with next. Really enjoy your videos.
The dog probably slept 12 hours straight after chasing that around. Really nice. So simply designed yet stable and multipurpose. Imagine that with a seven meter span, seating for four, glass bottom, cruising around the Maldives with tourists that want to visit every nice reef in a day...
Four years later this video comes up on my feed. I like this idea! Looks like something that I could build out of stuff that I have sitting around my house. Looks to be a great project for the snow season.
0:46 ok... play from this point and hum the theme to Star Wars... :) Great craft and vid!!
+Sly Sparkane I thought the same :-)
It totally looks like Luke's speeder!
OMG IKR??? ITS FLYING SO SMOOTHLY WOW! I thought that as soon as i saw that!!!
Thought the same.
These aren't the droids you are looking for. We're free to go. Move along.
sweet. what a smooth flyer it is :)
i know I am kinda randomly asking but does anybody know of a good website to watch new movies online?
@Houston Travis Lately I have been using flixzone. Just search on google for it =)
@Fletcher Enrique yea, I've been watching on Flixzone for since april myself =)
@Fletcher Enrique thank you, signed up and it seems like they got a lot of movies there =) Appreciate it !!
@Houston Travis you are welcome :D
I've been wanting to make one for a while. From previous reading, there are a couple things you can do to improvement performance.
First, the ground effect height is directly related to wingspan. Making a wider wingspan will increase the ground effect altitude.
Also, the wing tip height in relation to the body make a significant difference. The tips lower the effective overall height. Look at the Boeing Pelican, Caspian Sea Monster (Ekranoplan), and Flarecraft. Their wingtip pontoons weren't only for floation, they were to increase the height of the effective ground effect height.
To operate best, you should design for an altitude where the body/fuselage is as high as possible, while still in ground effect. For this kind of application, aim for keeping everything off the snow, ground, or water. If you need a 20 degree roll for turning, make sure that won't put the wingtip into the ground.
Look at the "Flarecraft". Their pontoons are inboard about half way, and low. When turning, the entire outboard part of that wing is parallel to the ground, again creating ground effect lift.
If you were feeling *really* ambitious, you could actuate those outboard wing segments, keeping them at the same angle relative to the ground, regardless of the aircraft's attitude. Look at the XB-70 Valkyrie, specifically the articulating wingtips. It was doing the same thing, but riding the supersonic shock wave.
There is a ton of exploring that can be done with that. I'm honestly surprised that we don't have more ground effect vehicles, considering how much is saved while operating them. They don't need a robust buoyant fuselage, full size airplane wings, nor anywhere near the same required thrust.
Love what seems like your neighbour giving a nice friendly wave there
if the padding below the plane was in a V shape just like ekranoplan and boats it may easy the drag while keeping the craft close to the surface, it may easy the drag on land too
Nice ekranoplan! ;)
экраноплан)
Экранолёт же
It's not the Caspian Sea Monster, it's the Duck Pond Monster :-)
those birds in the water didn't give a duck about the plane
Thats not an ekranoplan. Its a plane boat that uses ground effect to fly
Not gonna lie, that is impressive. It has great evasive ability against naturally occurring tamed arctic wolves, and has impressive stability and dosen't look like it stalls easily. It is also great at crashing, driving, flying, boating, or submarining.
Man Daniel, I am always happily surprised when I see a new video for you. Aside from the great rc adventures and experiments, the cinematography adds all the more to videos. Multiple camera setups, onboard shots, great editing, and really cool venues. I built Daniel Madigal's Gamera hydroplane and it flies very well in ground effect, but not quite as good as yours, great job and keep the vids coming.
Yeah, in all the comments I've read, kudos on the shooting/editing. Makes the videos all that much better.
That is so incredibly satisfying to watch. Great video!
You have to FPV that thing.❤️ Aquaplaning at its best
Came for the vehicle, stayed for the eager doggie! So adorable to see such pure joy.
So satisfying to watch it hover fly over the snow like that
It floats so smooth on the ground that it looks fictional :D
Peter Sripol made one Ground Effect Vehicle today. Have a nice day!
I must admit it was nice to see it or the idea flying again.
My first inclination was two sticks slung below the sponsons; just as you did! I dare say the instability issue with ground affect vehicles has been solved. Now it can move on to more widespread commercial use
Very nice RC ekranoplan!
You've just given me a great idea for pizza deliver in areas with snow.😉
Have fun with your worthless idea lmao you didn't think of shit
@@melvinjansen2338 no need to be rude man.
@@giornogiovanna3446 then how to say it? Obviously he did nothing with the idea cus he's 14 and the idea sucks.
Watching a video where basically the same fucking thing is beeing shown is not getting an idea.
@@giornogiovanna3446 with the wink emoticon at the end.. You think he doesn't deserve to be struck down?
@@melvinjansen2338 You're an asshole. Especially if he's 14. "How to say it" - don't. No need to be a dick. If he has an idea let him explore it, maybe he'll find out it's not a great idea if it is not, but the only way to gain experience is to fail. I've failed many times, you surely have too. And if you don't change your attitude, I just hope you're never gonna have children.
NOBODY deserves to be struck down.
Someone gives that man a cookie. He deserves it.
There must be an unimaginable frustration trying to get this to work in public and everyone watching it like wow that’s cool and you knowing it’s not even half way there
Reminds me of the speeder from Star Wars
It reminds me of Russian designer Alekseev. ruclips.net/video/x22nVFTd8nI/видео.html&lc=z22ut1rpjrmksdrxp04t1aokgmov2u4sdaimce4ev41cbk0h00410.1558770812827668
Awesome man! And well done. I've seen a lot of people trying to make WIG's work, and fail :)
Cheers and thanks for sharing :)
Nice:)
That , my friend.... Was cool!
I once made a small flying wing with the gear from a Parkzone Ember 2. It didn't have enough power to haul it properly into the air and so it took advantage of the ground effect. Planes like these are called ekranoplans I believe.
You know, thank you for making this video. It has reminded me of my ground effect project I did back in Grade 5 in like... 1993... I think. It was a fully built nitro aircraft (No electric then) that had a t-tail with two booms, similar stubby fat wings with 'wing tip scoops'. I even entered it into the science fair then. lol. Wish I could find pictures and video of it.
Your craft reminds me of a model I had years later... maybe 2005. Which was a RC 'boat' that looked like a hydrofoil, but was just a foamy with lots of power. It flew like a box, but was fun... very fragile! It was kinda like that 'Airship F4'
Наши модели над Каспием летали. Только размером поболее.
Can you do a tutorial on how you waterproof your electonics?
use kitchen plastic boxes, the ones with rubberseals.
Also Silicone/Acrylmass/Hotglue can be handy.
@David M yes that silicone type that can be
poured is platin based , expensive but useful
when the prizes is worth the cause (and often
you dont need much) There is a company from
the US which has worldwide local supliers i can recommend its called www.smooth-on.com
Click on find distributor (I bough mine from
www.kaupo.de)
Just so everyone knows... Ground effect is not when an aircraft glides on a cushion of air. Ground Effect occurs when the ground disrupts the wingtip vortices and therefore less drag and downward force is applied to the aircraft.
Those ducks were like "who's this hooligan messing around on our turf" 😠🐤✈. !!Cool Video!!
are you taking your Dog for a walk or are you playing with your model plane ????
I love the dog。
☺️☺️☺️
Fantastic! What a great, practical, demo of GE and you live in such a beautiful place! Well done and thankyou!
I hate typing. You LOVE a good review.... Its worth the time on the keyboard to to discover that you can't find words that express how impressive your device works!
It started ouut in the snow. Then INTO the water! From there, what next? Wow, right into the air...!!
reallly, Mr.Lucky >>> you have gained many accolades for all of your FUN WOORKS!!1 ; Thanks for taking us all along with you!
Arn
0:30 "Where we are going, we don't need roads"
Jeronimo M how old are you.....
2:35 Those docks were like, we don't give a fuck :D
ground effect vehicles are really fascinating to me, i really wanna get into diy rc planes so il definitely try making mow own ground effect thingy some day
Great vid. I love how still the water was. Usually when I go to our float and fly the waves are up making things difficult for take-offs. If I made something like this it would have to be much bigger to handle the waves.
This is like the Russian ekranoplan. It was a 500 ton 'craft' that flew a few feet above water.
Yeah ruclips.net/video/VjyY3EFzXJI/видео.html&
Ekranoplan is literally the Russian word for a Ground Effect Vehicle. They build more than one, though the Caspian Sea Monster is the most famous.
reminds me of the salt speeders from Star Wars
Real live action dogfight -- I could not help imagining myself flying a Spitfire, having that collision and seeing the ground come up to meet me in the last instant of life.
this is the first time i have seen something so BRILLIANT IT'S CRAZY AS well done .
You said the electronics were waterproof. How'd you do that?
+eRCaGuy i think he submerged/coverd the electronics in somesort of epoxy
this was soo cool!
Looks like it would be fun on the snow or sand or maybe a golf course grass. Nice design!
On the bigger crafts, I have seen they bend the wings inward, trapping more air and giving it more stability when close to surface
Do a vid where the dog follows a plane for 5 minutes
PLEASE REVISIT THIS IDEA!!!!!
Weird! I didn’t even realize airplanes had ground effect like a heli or drone would. That’s trippy!
Its an ekranoplan. Made one of these out of cardboard and hot glue with no motor no movable control surfaces. It would glide all the way across my friends long garage just under an inch off the ground. Try putting a large horizontal wing pointing slightly up on top of the rudder. helps keep the nose down which is very important in optimizing speed and stability in a ground effect vehicle.
make a snow speeder from Empire Strikes back.
It reminds me of Russian designer Alekseev. ruclips.net/video/x22nVFTd8nI/видео.html&lc=z22ut1rpjrmksdrxp04t1aokgmov2u4sdaimce4ev41cbk0h00410.1558770812827668
Nice vid. Funny dog. ; ⩘ )
I find this very satisfying.
I love how the ducks at 2:35 look like they're just so used to stuff flying towards them for no properly explained reason that they don't even get startled anymore XD
So this is how Star Wars speeders do it.
Its called an ekronoplan
+Julius Nyangoro That's the Russian ground effect vehicle they made for the Caspian Sea, not the name for this whole class of ground effect vehicles. The Russian one is very cool though.
cant we find an english name for it? plan is just lirerally plane.
I would definitely get a ring tone w quak quak when on the lake, would be a plus
I cant stop looking at this video, really awesome GE flying, prob the best I've seen
Who else was watching the dog and not the plane?
It "leaks" as you probably know. From the ends when it does the gradual turns. Having "skis" or bigger endplates fixes that probably. Keep it up, fun to watch
One hell of a good way to excercise your dog!!!
Thanks for keeping up with this project. You have me working on a project using spare airplanes.
I love the snow part, when filmed lateraly it has something of a landspeeder (from SW)!
Great work - better than a tv channel any day!
Challenge: Build it with only one central sled in the center of the belly instead of two. Keep it thin and make sure the wings can withstand the occasional bump on land. The central sled would eliminate excess drag as well as keep it from dragging to the side when on water.
Quite graceful at times, skimming about.
Outstanding creativity. I have seen some of your other videos and you never fail to impress me with your ideas. I started as an RC modeler myself, and it lead to a career as an engineer that has been very rewarding. Keep up the good work.
dude the stuff you make is awesome... I used to want to be an aerospace engineer. I used to have a wind-tunnel at school that we could put models into and I came up with a "perfect" airplane/glider I just called it the X wing and well I made it out of balsa wood and some jack#### stepped on it on purpose while we were testing it lol
YES BRO YES! You are taking advantage of a very very neat aerodynamic ground effect!!!! Keep up the good work!!! I bet something like this will revolutionize snow/sled travel!!! Keep up the good work!! Mad Props!
This is an old video - but the principle of "wing in ground effect" is you're leveraging high and low pressures created by LIFT. It would appear that your airfoil is just a flat piece of wood which supplies minimal lift; most of opposition to gravity being the angle of thrust of the propeller. It would had more of a traditional airfoil creating some lift - you'd probably have a better effect. Just thinking.....
AWESOME!!! The camera mounted on the sled and the quad copter is really cool
It's interesting to see these vehicles in operation. I was fascinated by the Russian experiments with it decades back. It's funny seeing something with a bunch of big engines and tiny wings designed to barely lift off the ground.
Wow! I have never seen it shown like that! Planes usually flare themselves slightly on landing too (What pilots call ground effect)
I have heard of super long range airplane/boat that might be using this soon. It's not fast but very efficient. Much needed technology if you ask me.
If you look at seaplanes ,they all use a v hull with a "step" at the rear to break away from the water. You may want to try incorporating that on your design. The hydroscopic force, of water, kinda sucks it down or holds it into the water, until enough lift or thrust is applied, and then it pops up all of the sudden. With a V hull and a step, it should lesson the effect. Hope that helps
It flies so good thank you for making the video without music
Try introducing a small amount of under-concavity [under-cut] to the wing. Design the under-cut from the wing tip and back in as far as you can manage with materials. A good rule of thumb is maintaining a 1/10 ratio of under-cut to cord. Make sure there is NO under-cut near the pontoon as measured from wing-tip-outboard within a ratio of ~5/8 the cord as measured at the middle of the pontoon. Undercutting a wing too close to the pontoon can result in unwanted tip-stall characteristics at ground-effect-cruising speeds.
In terms of pontoons, try introducing a step design. The general rule of thumb is 1/3 to the front, 2/3 step up in the rear. Based on experience, if you're trying for a high efficiency skimmer, start at 1/3{}2/3 and slice off some material (incrementally).
Your prop angle looks very good for a start. NOTE that as you decrease surface drag (with under-concavity and pontoon stepping) you will need/want to decrease your prop angle to achieve maximum ground effect loft and efficiency.
It's cool to see your process for improving it.
That's pretty cool. You oughta fabricate a design using the reverse delta wing with dihedral wingtips outboard of the sponsons and a T-tail to keep the nose down. That seems to be a pretty stable configuration for WIG vehicles. The dihedral wingtips give it stability in roll to counter the anhedral of the reverse delta inboard of the sponsons, and the T-tail gives it stability in pitch (and yaw) to counter the nose-up pitching moment induced by the main wing. I'd be curious to see how the functionality of that design scaled down to a craft of this size.
Really cool craft and very exciting footage. What a nice view over the mountains!
whoa a single seater ground effect vehicle would be a fun water vehicle
It needs V hulls - that is why it goes so good in a wide turn on one hull - you are using the side of the those sticky flat bottomed hulls. Flat is good for snow.
Nice, an ekranoplan! :D I actually learned to fly my quad in ground effect... Fun, but also great way to chew up props.
I really wish that there were more RC GEV videos around, because I really like the concept, but no one has seemed to have experimented with it except you and a few others.
You are the most creative rc man i seen
I believe water tension is what "glued" the craft to the water
looks like the dog was having fun chasing it around..... neat!
That flies so smoothly! Wow!
It's a great way to exercise the dog! The ducks seem to have gotten used to it.
A very versatile model, it does everything including exercising the dog. Nice video.
Nice. Yeah, another way to demonstrate ground effect is to hover any R/C heli at eye level, note the throttle used, and then go to an inch off the ground and you'll see a huge difference in the amount of power used.
Yes and it works at the ceiling too. It's easy to accidentally get sucked up into the ceiling though.
Great vid, my favourite bit was the completely oblivious ducks. Well done.
Two things: square wings have a very unstable Cm. Better to use a reverse delta. Without a high T tail (flying out of GE) the longitudinal phugoid motion is always present and it becomes uncontrollable when the speed is increased.
That's very cool. it almost looks like it's hovering.
It would be a cool idea to make the hydrofoil pull the plane down somewhat. This would mean that an equilibrium of lift from the wings and downward force from the hydrofoil would be met due to the increasing ground effect the lower it flew.