New Hybrid AIRCRAFT is GAME-CHANGING

Will hydrogen become the next fuel sources for hybrid aircraft? Let's find out!
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[@planetofthepete]

The energy stats quoted at the start need some additional caveats: yes Lion batteries are currently at the 300Wh/kg and Hydrocarbons are typically 12kWh/kg - however the utilisation of chemical fuel has efficiencies of approx. 20% resulting in a usable density of 2.4kWh/kg. Still much better than electrical, but inefficient. Hydrogen has better energy density when mass is a factor, but is poor when volume is a factor - thus suitable for short range applications, where climb is the cost driver, and poor for cruise where drag is the dominant mechanism.
hybridisation is almost always an advantage when there are changes in power output, or where there is a significant disparity in the thrust to velocity... which also supports the short haul case if the additional non-fuel mass (alternator, wiring etc) are low enough to not erode the gains.

[@AngelLestat2]

all the flying prototypes who wanted to maximize range or efficiency end up using hydrogen. There is no way to beat hydrogen at that metric.
So not sure why you tag hydrogen as just good for short flying.
Yeah.. if you want to use a plane design who was designed for kerosene and adapt that to hydrogen following other silly regulations that were designed for ground h2 storage, then yeah, your plane would not be able to achieve long range.
But those limitations are on current regulations and designs, not on the h2 tech itself.
Let me clarify... Half of the weight of a 747 is fuel, with liquid hydrogen you can achieve the same energy at 1/3 of the fuel weight, 1/3 of the weight requires less fuel to match the same range, less power to take off or smaller wings which equal less drag.
So you end using even less h2 to start, this mean you end even with a similar volume, and even in those cases where you want to double the range, just increasing the dimensions of a tank by 20% you are doubling the volume.
So no.. volume is not an issue.. The issue is the amount of money and time that requires to certify different designs, tanks, systems and methods on an airplane that carries people.

[@1TakoyakiStore]

According to Scott Manley there is a market for short stop small cargo transport. I say this because there is likely a financial dead zone for range with electric VTOL vehicles.

[@Tech_Planet]

Good point, definitely still a current dead zone.

[@mrgreen9086]

This is pretty cool
Might consider getting into working on these bad boys

[@nick0047]

There will be a place for all compositions whether it’s electric or hydrogen or something else. I remember a time when so called experts said it would be impossible to attain solar energy from the Sun but, look at where we are now. Major disruptions are happening and many are great for a society that moves forward.

[@fg146]

Love the channel, keep it up

[@Tech_Planet]

Thanks!

[@BariumCobaltNitrog3n]

Ground based recharging way-points could recharge the electric flying vehicle with lasers as it flies by. Energy is energy. Besides increasing energy density, batteries are getting faster charge times. A few high-density pulses keeps it in the air longer from a giga-charger. pew pew!

[@KC-nd7nt]

Study particle physics more . Clouds and lasers do not mix

[@KC-nd7nt]

Changing the angle of the laser at ground level to hit an aircraft at more than 40° angle is difficult. More angle , more atmosphere. How many lase stations needed to control or power 20 aircraft ? 20 machines needed . Can only focus on 1 target at a time . Space would look like a disco ball .

[@BariumCobaltNitrog3n]

@@KC-nd7nt This is why you'll never invent anything. You added many precise variables that have nothing to do with the idea. 20? Why 20? Lasers can focus on hundreds of things at a time. What about refueling a jet from another plane? Why wouldn't that work?

[@4115steve]

I'm wanting to see a VTOL glider that has a turbo jet electric generator. I refuse to ride in any VTOL that can drop out of the sky

[@Tech_Planet]

That is a good idea!

[@skyblueiiii]

Better batteries mean better VTOL. Considering all the great batteries being developed, I think the future of battery VTOL is looking up. However, current infrastructure plays such a big role that gas turbines may rule for the near future. But then again, can you say small magnetohydrodynamic generator?

[@OrenBlau]

for day time with small battery is to put solar power, for night aim a ground laser on the plane panels

[@Alan36647]

You can't have the speed of the Turbofan engines, if you don't burn fuel.
It's possible with Propelled engines that are slower.
And these projects are mini projects.

[@ghazman6141]

I think hydrogen is the future, and as more scientific minds devote themselves to refining the process of making it, it will surge ahead. It's cleaner than making batteries.

[@matthewhuszarik4173]

Hydrogen has to many packaging issues. Either urea or ammonia are more likely the solution.

[@0ctatr0n]

Why can't the batteries be pods under the wings like the auxiliary fuel tanks on most fighter jets? Shorter range isn't an issue when you can land and swap the pods in minutes.. maybe even with robots!!

[@bruceboehlen7616]

consider liquid piston instead of the fuel cell for better efficiency and lessor cost.

[@Tech_Planet]

Good point!

[@christojojo4433]

I think that VTOL can only shin if they become more chap to produce which seems like it's not gonna happen in our life time

[@leeandrew2682]

how many cpu fans??

[@RandyZimmerman-pp5wj]

As long as it's not made by Boeing

[@stanmitchell3375]

Hydrogen can be efficiently made by nuke

[@funnyguy1487]

Speech therapist could help you out a lot... on the other hand, let AI do your talking.

[@jackgoodrich798]

Complicated