Powered gliders also can do dynamic soaring (DS), possibly autonomously, to achieve much longer distance flights, as they can avoid and escape areas/situations of low wind gradient using their motor.
Autonomous soaring is another factor that could be used for cargo to extend range - no passengers to worry about turbulence or slower flight times. Autonomous cargo planes also have the advantage that no weight and space needs to be dedicated to the human crew. Temperature and pressurization issues are gone for many cargo types. Electric motors can also run at very high altitudes.
As a sailplane pilot for 55 years on three continents and winning competitions etc etc I think I can ,without respect, completely debunk the basic physical implausibility of your assertion -- only in one in a thousand cases could any assistance from atmospheric effects do you any good ,if that even. (unless perhaps by 'cargo' you mean a single pizza (delivered cold) or something equally tiny .
Wow, impressively ignorant statement. Especially as you claim to have done sailplane competitions, where I expect you'll will have covered many hundreds of km's and speeds faster than road cargo, and on days you don't get to pick. Sure some days aren't good for soaring entirely without an engine, but most days there will be some helpful air movement if you have assistance from batteries and solar. And most cargo is not heated/cooled, it just gets shipped in containers and experience whatever weather the truck, train, plane or ship works with. Lots of cargo isn't time sensitive.
yes, i am wonder when we will have fully functioning autonomous gliders that can traverse the entire planet. we should see it within 5 years. there are videos of microsoft exploring the idea almost a decade ago
You could accomplish autonomous gliding you will not be able to accomplish autonomous soaring which just takes too much conscious thought, and autonomous system would not be able to identify lift sources and make all the decisions needed.
Thermals are very small and to use the best lift near the core you must fly slowly in small circles --the only 'cargo you might carry would be a small, cold pizza or some such miniscule 'payload' --unrealistic inexperience combined with the megaphone of social media at it again -- how about rubber powered cargo aircraft ?@@soaringeagle
Thank you for another excellent video on this fascinating topic. Any chance of a year end summary of the technological advances and/or company updates of 2023?
A video dedicated to the Antares 20E (Lange Aviation) would be good: Over 20 years old design, fully electric and L/D better than 50. Another video dedicated to the Archaeopteryx with electric motor and L/D of 28 at a weight of only 85Kg (without pilot) would be good!
I'm glad you mentioned the zipline system. I've seen other creators on the topic, but if the information is available to you, I'd love to hear a more technical breakdown.
this is one of my favorite subjects. I wish i could start this type of company. AI will make information costs go to near zero Solar will make energy costs go to near zero. And AI + Solar will make transportation costs go to near zero. An autonomous agent could potentially glide forever on little energy. imagine a delivery form the US to china being $5? its possible with AI and we will prob see this within the next 10 years. The world is really about to be transformed.
US to Chine on 5$ is very unlikely with gliders. its costing around the same in a ship anyways. Distance is just too much to cover and if any weather mishaps. nowhere to land in the ocean. too risky.
The problem with batteries powered flight is range but what if the lift aircraft (the one pulling up) is electric you could charge it in between tow ups and get away with a small battery pack. Saw a Ted talk on using autonomous gliders high in the jet streams to get really far
Fantastic video with good explanation of e-glider range equation! A small team of us, at Cranfield, studied basing a 600kg electric aircraft design on a glider to maximise lift-to-drag ratio. My proposal was to put half of the batteries in the wings to allow good aspect ratio without undue stresses in flight. The challenge is then to allow the same wing to handle heavy landings without undue root stresses, although carbon composite flexure can help by absorbing impact energy. To keep landing gear length & mass down, we selected twin rear ducted pusher fans. The one advantage of e-VTOL is that there are systems available now, like the Schubeler ePos-21, which offer ready solutions for fixed wing propulsion. We were conservatively estimating 500km for 2 seat version and 750km for single seat version. I'd like to think that at some point I can get a small team together and have a go detail designing it...
hi martingarrish, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
@@flat-earther , my belief system is that the observable universe is round. To test this belief might cause reality to implode. This would leave us in a bad bad place...😱
@@martingarrish4082 okay. BTW martingarrish, what do you think about all gubments drawing a line around you and saying you are not allowed to leave?(Antarctic Treaty) If you don't know what I mean, read my about tab.
@@martingarrish4082 yes I don't like wasting more time because youtube censors comments. I just opened a door of information to you and you get to decide what you do with it
Correct. I've personally invested my money and life into it. Our company UA-cam channel will reveal when our first aircraft is announced. Won't promote here else my comment will be deleted by mods.
Well, given that the most fuel is used at taking off, and climbing to altitude, there is a possibility to use electric tow planes to launch these. This is kind of like a booster with space craft. The dead weight of low altitude high power propulsion is ejected at the beginning of the flight with the corresponding batteries. But do to the high power and low maintenace electric propulsion can also be used at this stage.
hi kistuszek, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
@@ronaldglider Oh wow, that's interesting, thanks. Don't know how I missed that lol. Still think that's not as easily available as 350 wh/kg batteries no? Because that's something even I can just order online myself.
@@ronaldglider I do think the aviation industry is taking almost all of that output, they can pay way more than the car industry. For example if you look at Amprius and their 450 wh/kg or 500 wh/kg cells they are seemingly selling the majority of all their cells that way.
There is some interesting new materials that would be interesting to see in flight,like the thin and light "humidity battery"membranes that make a little electricity from the humidity indifference on the underside of the glider wing,it's interesting because of unknown thermo-dynamic interactions with leading edge flight turbulence ,heat and lift
I really like this idea!! For small payloads, (under 10 tons) I think it would work great. Used in tandem with heavy or very heavy lift airships could cut transport costs and provide a Freight Locomotive cost curve without the rail infrastructure and upkeep.
@ElectricAviation , Your audio is greatly improved!!!! Sounds like you may have gotten a new mic and perhaps some audio processing equipment or software. It's a very nice improvement!!! Although, I do have to say that I have always enjoyed your videos!!!!
You could have an autonomous tractor unit fixed to the fuselage to get the glider to altitude so the glider isn't carrying this weight to the destination allowing more cargo.
Solar glider with batteries,did not think of that,,,,and oh my ,my idea of catapults and catchers is now real with cargo drones.thankyou so much for bringing us these fascinating scientific and historical development of electric aviation.what next a disc craft?
hi flechette, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
What if we use lifting gas to increase the surface area for solar panels without adding weight. Essentially an airship that can land on its own without wasting gas. The increase in drag, while slowing down the aircraft, should not be enough to offset the benefits of having an increased energy output from solar panels and the lower energy demand for take off and landing (less batteries, smaller electric motors).
hi bigfoot8, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
Future news reports: 1. Another cargo glider hacked enroute, all cargo stolen. 2. Another massive lawsuit looming against CG company after a glider crashed into a residential area.
hi benvandermerwe, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
yes! wide box wings (bi-plane box wings, no tips, just vertical wall) rock. bi-planes have about 1.7x lift compared to single wing plane. also canard double wing planes, linearly after each other. multi-glider (multiple consecutive wide wings, more solar surface). almost a kite. maximal solar surface, and lift surface, and minimal weight of the wing, fabric or foldable plastic. kite is better as a glider. ask birds or God. triangle kite with two poles left/right is the best strength structure with flexible folding wing fabric structure. come on with the patents, no more patents. not your idea. possibly double triangle kite wings, to make them rectangles, or diamond symmetrical.
Sea take off. The wing js blown to increase the deag on the top sidea of the wing the weight is hoftes baxk to raise the wing facing a winfy dy the lift us set by the weight on a rail the lkad pulled fiwrad to the center of the uull and ountiil at the height required aboce the winds shear off , then the earyb runs arpubd then land by tge place its not there e?
This doesn't make much sense at all, really. The gliders in WWII were used because the army needed to deliver troops to a combat zone en masse. Parachuting is too imprecise and puts the powered planes at risk. Gliders let them disengage the valuable powered craft before entering the most dangerous zones. On their own electric powered gliders make plenty of sense but they're never going to carry any significant amount of cargo. You're still going to be limited by the amount of energy they can collect from the solar cells for any trips of significant distance and that means the cargo capacity is going to be limited.
You have no practical understanding of the structural inefficiency of 'gliders' (sailplanes) where the wing mass increases so fast with span or size that there is no payload fraction possible --with solar power the concept is simply ridiculous - the round world solar aircraft was indicative of the fragility and uselessness inherent plus the huge size just to lift one person -- batteries are another level of ridiculousness to add to this hare brained 'thought' . The existing passenger and cargo aircraft in airline use ARE optimized to give the best useful load to power etc balance. Hurel Dubois explored the potential for higher spans and L/d as did the NASA SUGAR project but still using viable propulsion . this is crap.
I have looked into that previously and it does not seem to be the reason; as if putting a 'hyphen' should do that in any case . The post below by 'robertosfeld' contains a hyphen, as does yours . I would normally connect, by 'hyphens', a compound thought rather than the less appropriate commas , as here . Let me see - using hyphens - at both ends of a sentence if this is so.
didn't happen , the round world (in 60 days almost) solar powered glider was Solar impulse from memory - papers on the concept of cargo gliders -even in trains with one tug - were published in the 50s but proved impractical -- solar energy can barely sustain the most refined EMPTY aircraft as already shown. Is that enough hyphens? let's see .
hi rossnolan, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
I rhink in the brief sights of airplane since the pre war itlaina designer . The air speed is detrimental to flight and man. Tje speed is imortant to asife the air density and temp.amd the materila in any glider. Powered flight is in a swnsw impossbel fpr the human. Like the motor. Car . The rrick is reference have a reference by ny health i.must walk sir and mangeefers be they the banks . That then is set by oxyg0en amd that lkcjs the memmory of relative i can walk and i nnow im right . Di thus b😊y darl deep.night and the eys cry i will save you human
hi yukon, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
@@yukon4511 yes. BTW yukon, what do you think about all gubments drawing a line around you and saying you are not allowed to leave?(Antarctic Treaty) If you don't know what I mean, read my about tab.
Dear Sir, these unqualified comments do not contribute to advancing the discussion here in a meaningful way. You may not know, but there are touring motor gliders and powered sailplanes and even cargogliders. They have all significant difference conceptual design. The main advantage is the ability to fly long distances without or very few power if the weather condition is supporting.
You never heard of a self launching motor glider glider is a plain capable of sustaining flight without power. A glider can have power can have a jet engine several do have jet engines they just don’t rely on power to get from place to place
When using electric power you climb as high as possible then continuously descend in a cruising glide to get the most distance. Do you even electric aviation bro?
Would require totally robotic loading and unloading which means quite a lot of volume to compensate the robotic infrastructure at the departure and arrival
Motor-(electric)-Glider would be a very Frugal Flight. (Just not safe/fast/"on schedule" enough to move human "beans." (As the fellow doing the Posting noted, they did well enough, while Hitler was still breathing. Might be "Time" to check, and see if this is viable - considering that Materials Science and "Elec-Tek" has Advanced considerable, since the nineteen-forties.)
Motor-(electric)-Glider would be a very Frugal Flight. (Just not safe/fast/"on schedule" enough to move human "beans." (As the fellow doing the Posting noted, they did well enough, while Hitler was still breathing. Might be "Time" to check, and see if this is viable - considering that Materials Science and "Elec-Tek" has Advanced considerable, since the nineteen-forties.)
The wartime assault gliders had to be towed by another aircraft to their drop-off point, and they rarrely flew again because they landed in places that aircraft couldn't land or take off from. Single use throwaway cargo gliders are not going to be a viable business. If you need to land at an airport so as to be able to use it again, then you may as well use the tow aircraft for your cargo, which is what did and does happen. This guy is mixing two totally different types of glider, which have completely different designs. The assault glider is boxy with a poor gliding capability, that has to be towed all of the way until it crash lands at its destination. The soaring glider is as light as possible, with long wings and is designed to be able to harvest the lift contained in thermals, and is largely dependent on weather to provide this lift. Gliders can travel long distances, but are dependent on the weather being suitable all of the way. These long distance record flights were a challenge, not the start of a regular service. The motor glider bit is really just a cheat to get more altitude when the weather doesn't work for you, or you can get into the air without a cable or air tow. If you run the motor all of the time then it is an airplane not a glider, and glider plan forms are not optimum for a powered plane. While there have been some impressive electric plane firsts, they have only served to demonstrate the current inadequacies of the solar battery model. The electric plane that went round the world took several months to do it and barely carried more than the pilot. The fossil fuelled version did it in 24hrs iirc. Who wants their journey to take months instead of days even if it is only light cargo. And that is the nub, a glider will never be able to carry the cargo of a well designed plane, and never be able to choose its own weather independent route. Electric planes may have a future, but it is a long time in the future, currently fossil fuels have pound for pound much higher energy density than batteries, and for aircraft pounds matter. Mixing two different modes of glider misses the point of why they were designed as they were. It is similar to mixing an ocean liner with a speed boat and saying we could have 100mph ocean liners or cargo ships. The physics and economics says no. That is why we had ocean liners and we had speed boats, but not a combo. The same goes for long distance cargo gliders.
One of my favorite channels - excellent writing and fascinating subjects!
Thank you
Powered gliders also can do dynamic soaring (DS), possibly autonomously, to achieve much longer distance flights, as they can avoid and escape areas/situations of low wind gradient using their motor.
Autonomous soaring is another factor that could be used for cargo to extend range - no passengers to worry about turbulence or slower flight times.
Autonomous cargo planes also have the advantage that no weight and space needs to be dedicated to the human crew. Temperature and pressurization issues are gone for many cargo types. Electric motors can also run at very high altitudes.
As a sailplane pilot for 55 years on three continents and winning competitions etc etc I think I can ,without respect, completely debunk the basic physical implausibility of your assertion -- only in one in a thousand cases could any assistance from atmospheric effects do you any good ,if that even. (unless perhaps by 'cargo' you mean a single pizza (delivered cold) or something equally tiny .
Wow, impressively ignorant statement. Especially as you claim to have done sailplane competitions, where I expect you'll will have covered many hundreds of km's and speeds faster than road cargo, and on days you don't get to pick.
Sure some days aren't good for soaring entirely without an engine, but most days there will be some helpful air movement if you have assistance from batteries and solar.
And most cargo is not heated/cooled, it just gets shipped in containers and experience whatever weather the truck, train, plane or ship works with. Lots of cargo isn't time sensitive.
yes, i am wonder when we will have fully functioning autonomous gliders that can traverse the entire planet. we should see it within 5 years.
there are videos of microsoft exploring the idea almost a decade ago
You could accomplish autonomous gliding you will not be able to accomplish autonomous soaring which just takes too much conscious thought, and autonomous system would not be able to identify lift sources and make all the decisions needed.
Thermals are very small and to use the best lift near the core you must fly slowly in small circles --the only 'cargo you might carry would be a small, cold pizza or some such miniscule 'payload' --unrealistic inexperience combined with the megaphone of social media at it again -- how about rubber powered cargo aircraft ?@@soaringeagle
i just love how in depht your videos go while still being easy to understand to newcomers in the topic
who is your employer? how is the progress so far? i feel this idea could really work out when done in scale
Thanks for validating my employers business plan. We have been on the case for over 15 years.
Thank you for another excellent video on this fascinating topic. Any chance of a year end summary of the technological advances and/or company updates of 2023?
It will be coming in January 2024
A video dedicated to the Antares 20E (Lange Aviation) would be good: Over 20 years old design, fully electric and L/D better than 50.
Another video dedicated to the Archaeopteryx with electric motor and L/D of 28 at a weight of only 85Kg (without pilot) would be good!
Thanks for the tips
Great to see how deeply you dive into current developements. Thank you
My pleasure. More to come!
Thank you! Great educational video!
Glad it was helpful!
I can see the running costs being low, but what about overhead? Lightweight construction gets very expensive.
I'm glad you mentioned the zipline system. I've seen other creators on the topic, but if the information is available to you, I'd love to hear a more technical breakdown.
Exactly, that Zipline idea is truly a revolutionary one that needs to be implemented across the globe!!
this is one of my favorite subjects. I wish i could start this type of company.
AI will make information costs go to near zero
Solar will make energy costs go to near zero.
And AI + Solar will make transportation costs go to near zero.
An autonomous agent could potentially glide forever on little energy.
imagine a delivery form the US to china being $5? its possible with AI and we will prob see this within the next 10 years.
The world is really about to be transformed.
US to Chine on 5$ is very unlikely with gliders. its costing around the same in a ship anyways. Distance is just too much to cover and if any weather mishaps. nowhere to land in the ocean. too risky.
The problem with batteries powered flight is range but what if the lift aircraft (the one pulling up) is electric you could charge it in between tow ups and get away with a small battery pack. Saw a Ted talk on using autonomous gliders high in the jet streams to get really far
Thank you! 👍💪✌
You're welcome!
Thanks! It was a very informative video!
Nice ! 👍 Tried very well to fuse equation, technology, design description and historical significance
🕉️Om Namah Shivay 🕉️🇮🇳
Another potential application is communications relay aircraft with long loitering times over a coverage area.
They are already doing that using Lithium Sulphur batteries.
Fantastic video with good explanation of e-glider range equation!
A small team of us, at Cranfield, studied basing a 600kg electric aircraft design on a glider to maximise lift-to-drag ratio. My proposal was to put half of the batteries in the wings to allow good aspect ratio without undue stresses in flight. The challenge is then to allow the same wing to handle heavy landings without undue root stresses, although carbon composite flexure can help by absorbing impact energy. To keep landing gear length & mass down, we selected twin rear ducted pusher fans. The one advantage of e-VTOL is that there are systems available now, like the Schubeler ePos-21, which offer ready solutions for fixed wing propulsion. We were conservatively estimating 500km for 2 seat version and 750km for single seat version. I'd like to think that at some point I can get a small team together and have a go detail designing it...
hi martingarrish, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
@@flat-earther , my belief system is that the observable universe is round. To test this belief might cause reality to implode. This would leave us in a bad bad place...😱
@@martingarrish4082 okay. BTW martingarrish, what do you think about all gubments drawing a line around you and saying you are not allowed to leave?(Antarctic Treaty) If you don't know what I mean, read my about tab.
@@flat-earther, I think that this isn't an appropriate place to discuss that topic, as it doesn't relate to electric aircraft. 😧
@@martingarrish4082 yes I don't like wasting more time because youtube censors comments. I just opened a door of information to you and you get to decide what you do with it
This is the way of the future for electric aviation.
Probably
Correct. I've personally invested my money and life into it. Our company UA-cam channel will reveal when our first aircraft is announced. Won't promote here else my comment will be deleted by mods.
@@GudieveNing looking forward to it! Best of luck with your endeavors.
Well, given that the most fuel is used at taking off, and climbing to altitude, there is a possibility to use electric tow planes to launch these. This is kind of like a booster with space craft. The dead weight of low altitude high power propulsion is ejected at the beginning of the flight with the corresponding batteries. But do to the high power and low maintenace electric propulsion can also be used at this stage.
hi kistuszek, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
500Wh / Kg battery and L/D of 45 are easy to reach these days. The box-wing design is very interesting.
350 Wh/kg has decent availability at this point, but 500? What battery manufacturer has that and is actually possible to buy?
@@swecreations Sorry for late reply: Take a look at CATL.
@@ronaldglider Oh wow, that's interesting, thanks. Don't know how I missed that lol.
Still think that's not as easily available as 350 wh/kg batteries no? Because that's something even I can just order online myself.
@@swecreations yeah - the car industry takes all output for now, next will be aviation companies - only then you and I have a chance...
@@ronaldglider I do think the aviation industry is taking almost all of that output, they can pay way more than the car industry. For example if you look at Amprius and their 450 wh/kg or 500 wh/kg cells they are seemingly selling the majority of all their cells that way.
More about winch launching and how that can extend range by exploiting high altitude low drag
Thanks
Welcome
Will this help to reduce the number of big rigs on the road? If so, count me as a supporter.
VERY interesting video ... 🇬🇧
great solution, 👍
Yes, thanks
I would love to see a retractable glider get developed.you can take off under power and glide to your destination.💛🌍🤔✈️🕊️
Those exist, even electric ones. Self-launching glider is the term. A nice example is the Pipistrel Taurus Electro.
@@iaadsi what I want to see is a larger one which is possible now.✈️🤔
There is some interesting new materials that would be interesting to see in flight,like the thin and light "humidity battery"membranes that make a little electricity from the humidity indifference on the underside of the glider wing,it's interesting because of unknown thermo-dynamic interactions with leading edge flight turbulence ,heat and lift
I really like this idea!! For small payloads, (under 10 tons) I think it would work great. Used in tandem with heavy or very heavy lift airships could cut transport costs and provide a Freight Locomotive cost curve without the rail infrastructure and upkeep.
After the glider has landed, is it to be retrieved or is it abandoned?
@ElectricAviation , Your audio is greatly improved!!!! Sounds like you may have gotten a new mic and perhaps some audio processing equipment or software. It's a very nice improvement!!!
Although, I do have to say that I have always enjoyed your videos!!!!
I used a software to remove noise. The mic has been the same Rode NT. Thank you.
@ElectricAviation , well it sounds great!
You could have an autonomous tractor unit fixed to the fuselage to get the glider to altitude so the glider isn't carrying this weight to the destination allowing more cargo.
Solar glider with batteries,did not think of that,,,,and oh my ,my idea of catapults and catchers is now real with cargo drones.thankyou so much for bringing us these fascinating scientific and historical development of electric aviation.what next a disc craft?
Superb !!!
Thanks a lot
what about a huge catapult to launch unmanned cargo gliders ? thatd be awesome
There are no "light weight batteries" when compared to hydrocarbon fuel. for the energy they contain, batteries are just heavy.
hi flechette, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
Motor powered glider for me, please.
Nice job
Thanks!
Imagine the formidable sight of a tank landing on a war front
Yes, but once on the ground that tank has no support logistics, no ammo re-supply, and no fuel-tanker.
What if we use lifting gas to increase the surface area for solar panels without adding weight. Essentially an airship that can land on its own without wasting gas.
The increase in drag, while slowing down the aircraft, should not be enough to offset the benefits of having an increased energy output from solar panels and the lower energy demand for take off and landing (less batteries, smaller electric motors).
WOW! this is the biggest thing since the electric stove.
hi bigfoot8, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
You'd think the drug cartels would be all over this like a rash.
Future news reports:
1. Another cargo glider hacked enroute, all cargo stolen.
2. Another massive lawsuit looming against CG company after a glider crashed into a residential area.
hi benvandermerwe, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
yes! wide box wings (bi-plane box wings, no tips, just vertical wall) rock. bi-planes have about 1.7x lift compared to single wing plane. also canard double wing planes, linearly after each other. multi-glider (multiple consecutive wide wings, more solar surface). almost a kite. maximal solar surface, and lift surface, and minimal weight of the wing, fabric or foldable plastic. kite is better as a glider. ask birds or God. triangle kite with two poles left/right is the best strength structure with flexible folding wing fabric structure. come on with the patents, no more patents. not your idea. possibly double triangle kite wings, to make them rectangles, or diamond symmetrical.
100 watts per m2 panel area ? but only if the sun is on the zenith. The example is Piccard's plane, too much area required. dream on!
Delta wing aero gel aircraft would be a lot better.
IMO blimps are a better transport vehicle than gliders but they all have there uses.
Sea take off. The wing js blown to increase the deag on the top sidea of the wing the weight is hoftes baxk to raise the wing facing a winfy dy the lift us set by the weight on a rail the lkad pulled fiwrad to the center of the uull and ountiil at the height required aboce the winds shear off , then the earyb runs arpubd then land by tge place its not there e?
This doesn't make much sense at all, really. The gliders in WWII were used because the army needed to deliver troops to a combat zone en masse. Parachuting is too imprecise and puts the powered planes at risk. Gliders let them disengage the valuable powered craft before entering the most dangerous zones.
On their own electric powered gliders make plenty of sense but they're never going to carry any significant amount of cargo. You're still going to be limited by the amount of energy they can collect from the solar cells for any trips of significant distance and that means the cargo capacity is going to be limited.
You have no practical understanding of the structural inefficiency of 'gliders' (sailplanes) where the wing mass increases so fast with span or size that there is no payload fraction possible --with solar power the concept is simply ridiculous - the round world solar aircraft was indicative of the fragility and uselessness inherent plus the huge size just to lift one person -- batteries are another level of ridiculousness to add to this hare brained 'thought' . The existing passenger and cargo aircraft in airline use ARE optimized to give the best useful load to power etc balance. Hurel Dubois explored the potential for higher spans and L/d as did the NASA SUGAR project but still using viable propulsion . this is crap.
crossouts are a computer glitch.
@@rossnolan7283 The crossed-out part is probably there because you surrounded this text by hyphens.
I have looked into that previously and it does not seem to be the reason; as if putting a 'hyphen' should do that in any case . The post below by 'robertosfeld' contains a hyphen, as does yours . I would normally connect, by 'hyphens', a compound thought rather than the less appropriate commas , as here . Let me see - using hyphens - at both ends of a sentence if this is so.
didn't happen , the round world (in 60 days almost) solar powered glider was Solar impulse from memory - papers on the concept of cargo gliders -even in trains with one tug - were published in the 50s but proved impractical -- solar energy can barely sustain the most refined EMPTY aircraft as already shown. Is that enough hyphens? let's see .
hi rossnolan, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
tandem = unstable
cargo......
I rhink in the brief sights of airplane since the pre war itlaina designer . The air speed is detrimental to flight and man. Tje speed is imortant to asife the air density and temp.amd the materila in any glider. Powered flight is in a swnsw impossbel fpr the human. Like the motor. Car . The rrick is reference have a reference by ny health i.must walk sir and mangeefers be they the banks . That then is set by oxyg0en amd that lkcjs the memmory of relative i can walk and i nnow im right . Di thus b😊y darl deep.night and the eys cry i will save you human
Ridiculous concept.
hi yukon, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe
@@flat-earther seriously?
@@yukon4511 yes. BTW yukon, what do you think about all gubments drawing a line around you and saying you are not allowed to leave?(Antarctic Treaty) If you don't know what I mean, read my about tab.
Gliders aren't powered, if they are they're airplanes
Dear Sir, these unqualified comments do not contribute to advancing the discussion here in a meaningful way.
You may not know, but there are touring motor gliders and powered sailplanes and even cargogliders. They have all significant difference conceptual design.
The main advantage is the ability to fly long distances without or very few power if the weather condition is supporting.
What about one that get up with an airplane and the motors, designed to be ligthest/max reach so you get the eficiency point on point
Not all aeroplanes can glide.
You never heard of a self launching motor glider glider is a plain capable of sustaining flight without power. A glider can have power can have a jet engine several do have jet engines they just don’t rely on power to get from place to place
When using electric power you climb as high as possible then continuously descend in a cruising glide to get the most distance.
Do you even electric aviation bro?
Put your face in some videos. You'll do better . Cheers brother
Would require totally robotic loading and unloading which means quite a lot of volume to compensate the robotic infrastructure at the departure and arrival
Waste of time and resources
Motor-(electric)-Glider would be a very Frugal Flight. (Just not safe/fast/"on schedule" enough to move human "beans." (As the fellow doing the Posting noted, they did well enough, while Hitler was still breathing. Might be "Time" to check, and see if this is viable - considering that Materials Science and "Elec-Tek" has Advanced considerable, since the nineteen-forties.)
Motor-(electric)-Glider would be a very Frugal Flight. (Just not safe/fast/"on schedule" enough to move human "beans." (As the fellow doing the Posting noted, they did well enough, while Hitler was still breathing. Might be "Time" to check, and see if this is viable - considering that Materials Science and "Elec-Tek" has Advanced considerable, since the nineteen-forties.)
The wartime assault gliders had to be towed by another aircraft to their drop-off point, and they rarrely flew again because they landed in places that aircraft couldn't land or take off from. Single use throwaway cargo gliders are not going to be a viable business. If you need to land at an airport so as to be able to use it again, then you may as well use the tow aircraft for your cargo, which is what did and does happen.
This guy is mixing two totally different types of glider, which have completely different designs. The assault glider is boxy with a poor gliding capability, that has to be towed all of the way until it crash lands at its destination.
The soaring glider is as light as possible, with long wings and is designed to be able to harvest the lift contained in thermals, and is largely dependent on weather to provide this lift. Gliders can travel long distances, but are dependent on the weather being suitable all of the way. These long distance record flights were a challenge, not the start of a regular service. The motor glider bit is really just a cheat to get more altitude when the weather doesn't work for you, or you can get into the air without a cable or air tow. If you run the motor all of the time then it is an airplane not a glider, and glider plan forms are not optimum for a powered plane.
While there have been some impressive electric plane firsts, they have only served to demonstrate the current inadequacies of the solar battery model. The electric plane that went round the world took several months to do it and barely carried more than the pilot. The fossil fuelled version did it in 24hrs iirc. Who wants their journey to take months instead of days even if it is only light cargo. And that is the nub, a glider will never be able to carry the cargo of a well designed plane, and never be able to choose its own weather independent route. Electric planes may have a future, but it is a long time in the future, currently fossil fuels have pound for pound much higher energy density than batteries, and for aircraft pounds matter.
Mixing two different modes of glider misses the point of why they were designed as they were. It is similar to mixing an ocean liner with a speed boat and saying we could have 100mph ocean liners or cargo ships. The physics and economics says no. That is why we had ocean liners and we had speed boats, but not a combo. The same goes for long distance cargo gliders.