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Re: Future Vertical Take Off Electric Jets
Want one!
Be kinder than necessary because everyone you meet is fighting some kind of battle. -
Re: Future Vertical Take Off Electric Jets
Sounds very cool......
BUT
It doesn't sound like it adds up to me:
600kg max loaded weight - 200kg max payload = 400kg aircraft weight with battery pack.
600kg/2 (rough metric for equipped airframe structural weight)= 300kg airframe
Leaving just 100kg or so for batteries(maybe a little more if the battery pack can be incorporated as stressed/structural member.
At roughly 6kg of battery weight per KW of battery storage(based on current Tesla storage/weight metric), that leaves only about 16kwh of battery capacity.
If max power is required for takeoff and landing and emergency reserve is required(say 25%), how much range will you have at max economy flight with only 4-6kwh?
I'm guessing this is a glorified jet pack at current battery weight/energy density.
But I'm no engineer.
Where's GRG55?Comment
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Re: Future Vertical Take Off Electric Jets
Originally posted by lakedaemonian View Post
It's one of the oldest scams.
Flying cars and personal VTO aircraft.
It seems the most important characteristics are breathtaking artists renderings and a true-believer promoter.
The poster child for this sort of thing is probably the Moller Sky Car.
Wikipedia says this:
and this:...n 2003, the Securities and Exchange Commission sued Moller for civil fraud (Securities And Exchange Commission v. Moller International, Inc., and Paul S. Moller, Defendants) in connection with the sale of unregistered stock, and for making unsubstantiated claims about the performance of the Skycar,,,
Yes, that said fifty years.TheMoller Skycar is a prototype personal VTOL (vertical take-off and landing) aircraft – a "flying car" – invented by Paul Moller who has been attempting to develop such a vehicle type for more than fifty years.[2]As of 2016, no Moller air vehicle has successfully flown in free, non-tethered flight...
I've been watching this one my whole life, and Mr. Moller still has not made a single machine that flies as far as the Wright brothers did in 1903.
The stage props and renderings get updated every few years to something even more beautiful and cool. Always painted red.
Apparently there is enough enthusiasm for Jettson's flying machines that a handful of scam artists can make a living with them.
One can't help but think about Elon Musk in this conversation.Comment
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Re: Future Vertical Take Off Electric Jets
I am not an engineer nor do I know anything about flying objects. But for something li-ion battery heli-drones have a 20-25 minutes flying time. And they don't carry people with all the comfort and security parafernalia.Comment
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Re: Future Vertical Take Off Electric Jets
The info on Moller is very interesting, but I don't understand the comparison to Elon Musk at all. That seems to imply that his companies only sell the promise of cars, rockets, solar panels but that these things don't really exist.Originally posted by thriftyandboringinohio View PostComment
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Re: Future Vertical Take Off Electric Jets
I may have been overly harsh to Mr. Musk here, DSpencer..Originally posted by DSpencer View Post
Musk does in fact actually sell the cars and launch the rockets.
The last thing iTulip needs is one more thread calling Musk a huckster, I should have resisted the temptation to bring him into this topic.Comment
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