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#11
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Revolutionary new plane
On Thu, 25 Mar 2021 05:06:49 -0700, andy l wrote:
On Thursday, 25 March 2021 at 11:44:46 UTC, Martin Gregorie wrote: On Wed, 24 Mar 2021 20:08:43 -0600, kinsell wrote: https://mashable.com/video/train-plane-hybrid/ You gotta admit, it's better than the electric train pulling a blimp. Maybe with a longer extension cord, electric gliders could work. Nice one, whoever drew it. About as aerodynamic as a brick. -- Martin | martin at Gregorie | gregorie dot org About a week too early for April Fool's Day It reminded me very slightly of the Caspian Sea Monster, but those used to fly lower Some ekranoplanes were strictly ground effect, while others, like the A-90 Orlyonok (the one with a huge turboprop unit on the top of its tailfin) apparently had a maximum operating altitude of 9,800 ft., a range of 930miles and max speed of 220 kts https://en.wikipedia.org/wiki/A-90_Orlyonok But, that electric thing reminds me more of a modern version of the Caproni Ca.60 - prewar the flying boat thing with three triplane wing stacks stacks attached to what looks like an up-market canal-boat https://en.wikipedia.org/wiki/Caproni_Ca.60 -- Martin | martin at Gregorie | gregorie dot org |
#12
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Revolutionary new plane
Same outfit that came up with the ecranoplan? Reminds me of the old
saw:Â* Just because you /_can_/ do something doesn't mean that you /_should_/. Dan 5J On 3/25/21 9:11 AM, Eric Greenwell wrote: The concept came from a Russian design firm, so I doubt legal marijuana was involved :^) |
#13
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Revolutionary new plane
On 3/25/21 8:28 AM, Richard Livingston wrote:
Both of those "concepts" show complete ignorance of aerodynamics. Reminds me of my grandmother who wanted to tell the pilot to fly low and slow, for safety. There are very good reasons modern aircraft are all mono-planes turbofans that fly at very high altitudes. They are both more energy efficient and safer. Why would anyone want an airplane that has to follow a track? Rich L. I know these do indeed look like April Fools jokes, but who would have ever guessed that Caproni would build a nine-wing seaplane airliner meant to cross the Atlantic with only eight refueling stops? They actually made one and a half test flights with that thing. Here's a more detailed article on the three-wing job. Through the miracles of Photoshop, now they're flying with gear up: https://paxex.aero/se-aeronautics-fever-dream/ This one has an actual author who is starting to apply a bit of critical thinking. Sounds like they're serious about this thing, fishing around for $40-50 million in seed money, then angling for the ever popular reverse acquisition with a Special Purpose Acquisition Company to get the billions they'll need. If they actually do go public, a day one naked short sounds like a good bet to me. First flight in three years, you betcha. Interesting that the one shot molding process forces a few compromises, like no windows. Does that include the cockpit too? Seriously, am I the only one with an Android phone that keeps getting this crap fed to them? When they've got nothing new, they recycle old articles like how the Alice in Wonderland plane was the star of the 2019 Paris airshow, or how Norway is charging full speed ahead with their all-electric airplane program. |
#14
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Revolutionary new plane
Not totally on topic but interesting...
https://scitechdaily.com/big-breakth...ious-versions/ Bob 7U -- Â* Â* Â* Â* Â* Â* Â*********************DISCLAIMER****************** ** The information contained in this e-mail message, and any attached file, may be CONFIDENTIAL and is for the intended addressee only. Â*Distribution, duplication, or re-use of the e-mail or any information contained therein by any other person is not authorized. If you are not the intended addressee, please notify the sender immediately and then delete and discard all copies of the e-mail. |
#15
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Revolutionary new plane
I don't get any of that stuff on my Android phone so I'd guess it's a
configuration issue.Â* I also don't get notifications and I don't get awakened in the middle of the night (any more).Â* Go through all of the setup options (my favorite is Quiet Time). Dan 5J On 3/25/21 10:24 AM, kinsell wrote: On 3/25/21 8:28 AM, Richard Livingston wrote: Both of those "concepts" show complete ignorance of aerodynamics.Â* Reminds me of my grandmother who wanted to tell the pilot to fly low and slow, for safety.Â* There are very good reasons modern aircraft are all mono-planes turbofans that fly at very high altitudes.Â* They are both more energy efficient and safer.Â* Why would anyone want an airplane that has to follow a track? Rich L. I know these do indeed look like April Fools jokes, but who would have ever guessed that Caproni would build a nine-wing seaplane airliner meant to cross the Atlantic with only eight refueling stops?Â* They actually made one and a half test flights with that thing. Here's a more detailed article on the three-wing job.Â* Through the miracles of Photoshop, now they're flying with gear up: https://paxex.aero/se-aeronautics-fever-dream/ This one has an actual author who is starting to apply a bit of critical thinking.Â* Sounds like they're serious about this thing, fishing around for $40-50 million in seed money, then angling for the ever popular reverse acquisition with a Special Purpose Acquisition Company to get the billions they'll need.Â* If they actually do go public, a day one naked short sounds like a good bet to me.Â* First flight in three years, you betcha. Interesting that the one shot molding process forces a few compromises, like no windows.Â* Does that include the cockpit too? Seriously, am I the only one with an Android phone that keeps getting this crap fed to them?Â* When they've got nothing new, they recycle old articles like how the Alice in Wonderland plane was the star of the 2019 Paris airshow, or how Norway is charging full speed ahead with their all-electric airplane program. |
#16
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Revolutionary new plane
On Thursday, 25 March 2021 at 16:26:38 UTC, Robert Hills wrote:
Not totally on topic but interesting... https://scitechdaily.com/big-breakth...ious-versions/ From the middle of that article, it might be 10 times the energy storage compared to previous development in thus field, but "The battery has an energy density of 24 Wh/kg, meaning approximately 20 percent capacity compared to comparable lithium-ion batteries currently available. But since the weight of the vehicles can be greatly reduced, less energy will be required to drive an electric car, for example, and lower energy density also results in increased safety. " Somehow I can't reconcile some basic arithmetic. How, for instance, would this work on a small two seater car with a body made of 100 kg of carbon fibre? How does it save quarter or half a ton of battery? |
#17
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Revolutionary new plane
kinsell wrote on 3/25/2021 9:24 AM:
On 3/25/21 8:28 AM, Richard Livingston wrote: Both of those "concepts" show complete ignorance of aerodynamics.* Reminds me of my grandmother who wanted to tell the pilot to fly low and slow, for safety.* There are very good reasons modern aircraft are all mono-planes turbofans that fly at very high altitudes.* They are both more energy efficient and safer.* Why would anyone want an airplane that has to follow a track? Rich L. I know these do indeed look like April Fools jokes, but who would have ever guessed that Caproni would build a nine-wing seaplane airliner meant to cross the Atlantic with only eight refueling stops?* They actually made one and a half test flights with that thing. Here's a more detailed article on the three-wing job.* Through the miracles of Photoshop, now they're flying with gear up: https://paxex.aero/se-aeronautics-fever-dream/ This one has an actual author who is starting to apply a bit of critical thinking.* Sounds like they're serious about this thing, fishing around for $40-50 million in seed money, then angling for the ever popular reverse acquisition with a Special Purpose Acquisition Company to get the billions they'll need.* If they actually do go public, a day one naked short sounds like a good bet to me.* First flight in three years, you betcha. Interesting that the one shot molding process forces a few compromises, like no windows.* Does that include the cockpit too? Seriously, am I the only one with an Android phone that keeps getting this crap fed to them? When they've got nothing new, they recycle old articles like how the Alice in Wonderland plane was the star of the 2019 Paris airshow, or how Norway is charging full speed ahead with their all-electric airplane program. The only mention I saw for windows was they are structurally inefficient, and all passengers would get better outside views with cameras outside and video screens on the inside. I'm for that, as airline windows are small, limited in viewing area, and often hazy. -- Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me) - "A Guide to Self-Launching Sailplane Operation" https://sites.google.com/site/motorg...ad-the-guide-1 |
#18
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Revolutionary new plane
Andy's post about the carbon fiber "structural battery" is interesting. But I wonder what perils might arise from having the energy storage in the wings and/or body of the vehicle and getting into a crash. Do you get a bigger puff of smoke , a lovely thermal runaway and fire as a result of a fender bender?
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#19
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Revolutionary new plane
Not so new a concept, in Lithuania they are using a ground tow system to teach young kids to fly!
https://youtu.be/u4XfMHfIYSk |
#20
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Revolutionary new plane
On Thu, 25 Mar 2021 11:21:33 -0700, Mark Mocho wrote:
Andy's post about the carbon fiber "structural battery" is interesting. But I wonder what perils might arise from having the energy storage in the wings and/or body of the vehicle and getting into a crash. Do you get a bigger puff of smoke , a lovely thermal runaway and fire as a result of a fender bender? Two things the ocurred to me: - if the battery is (part of) the structure, how easy it it to replace and the bit of the structure storing energy when it gets old or fails? - AFAIK the amount of energy stored in a battery depends on the amount, and hence mass, of active material in the battery so, a thin carbon shell and a lithium-coated piece of aluminium foil may make a strong, light structure, but how much energy does it hold when fully charged and how much does the thing weigh when you've packed enough of these together to store the amount of energy your device requires. I can maybe see this working if its the shell of a mobile phone, but if its a car's body structure, or aircraft fuselage? -- Martin | martin at Gregorie | gregorie dot org |
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