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GdB
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Roughly 50-70% zero cross wind drag reduction compared to current box brick wall designs with dragy mirrors, and up to 100% in cross wind! This could be the Tesla Model C (Commercial Truck) with a greatly lowered CG and reduced flip over tendency, and enough range for 99% of the market! Kudos for open access: https://www.pnas.org/content/pnas/118/27/e2106406118.full.pdf I hope some improvements to private transportation vehicle aerodynamics reach mass market. Aptera's progress is fantastic!
ZeroAvia and a number of other companies are doing great work towards the most technically challenging sector to de-carbonize. More information here! ZeroAvia Virtual Summit on Practical Sustainable Aviation, June 25, 2020 https://youtu.be/m3E5dl8iNkQ What H2 research is Boeing doing? They where not present in this summit?
Perhaps multiple battery chemistries, with one maybe a SCiB or SuperCap or other optimized for many regen cycles and high power, would reduce the brutal load on the energy storage batteries.
Hope they push less brake and tire dust emissions. This will be an advantage for EV's, as they can use regenerative braking to easily satisfy the legislation. ICE vehicles can also reduce brake dust emissions by using improved brake technology like Porsche's ceramic coated brake discs, but at a high cost (currently): Porsche Reinvents The Brake Rotor - No Rust, Low Dust, No Fade! https://www.youtube.com/watch?v=ZCj83_uF9dE
Too little, too late. Sustainable fuels prices will get driven up as the scam and scarcity of credits is depleted, and as carbon sinks get destroyed. H2 or NH3 will become more competitive.
The bad: NOT Plug-In! Why not at least L1 capable J1772? That would cheap to offer and greatly reduce city emissions over the life! No 4WD option with electric rear motor! A few good key specs: Battery 14.4 kwh Electric motor 88 kW e-CVT Front-wheel-drive is standard on all models, with all-wheel-drive is optional only for the EcoBoost variants. Optional equipment (depending upon trim level) ... CoPilot360 suite of driver assistance technologies. https://en.wikipedia.org/wiki/Ford_Maverick_(2022) https://www.ford.com/trucks/maverick/2022/ Standard full hybrid! Great the smarter option is cheaper! Available 400W 110V outlets Anyone well informed will avoid the non-hybrid version, even with it's higher 4000 lb tow capability. All that means is some really long high grade tows will require slowing down more, but on the upside you can charge on the way down.
I hope they succeed. The battery tech and cooling is key. The prototype battery fire needs to be designed out to 0% risk during flight. Perhaps the wing should even be designed to allow battery dumping via a thermal-structural fuse to eject burning battery modules.
The "Specific Power in Cruise" chart shows how all the startups reinventing the wheel will be very limited in capability compared to traditional aircraft design. Excellent analysis. Next, they should do the same for electric vs conventional winged aircraft of all sizes.
Without a subsidy advantage, it will not sell due to upfront cost and per km higher cost. Anyone want to wager on this?
The range is not impressive, but maybe H2 with similar tech could work better for aviation, as weight is key, and the volume penalty is acceptable to achieve TRUE zero emissions. Watch "Why Biofuels Are Terrible" on YouTube https://youtu.be/OpEB6hCpIGM
The very low ambition 2030 Japan renewable energy plan needs to be massively improved to lower electricity generation carbon emissions. Are the Japanese politicians bought by the fossil fuel industry? https://www.eu-japan.eu/news/japans-new-basic-energy-plan-until-2030-approved
The poor driving giant vehicles with unpriced external costs is going to have to change. Vehicle manufactures will be forced to prioritize aerodynamics far more than styling to be competitive with Tesla which is winning in this aspect. Regulators will have to help build more DCFC stations, and update regs (side rearview cameras for better range, V2X for safety, ...) to enable 200miles cheap EV's. Sandy Monroe thinks Tesla can achieve $50/kwh.
With such a low range seems to not be better than BEV.
Why not lower and flatten the front motor etc, to allow more frunk?
How much battery and regenerative braking capacity that is a huge safety benefit for mountainous areas? A nice way to make this optional would be a HVDC connector for trailer integrated batteries.
All this is great, but no mention of durability and quantity and toxicity of particulate emissions from these tires relative to alternatives. Tire and brake particulate emissions are fast becoming the largest source.
Future ready V2G! Good competition to Tesla!
This is $0.045/kwh, game changing combined with new EV locomotives. Low cost H2 REX EV's could challenge pure EV's cost per mile, but always be more expensive not counting range. Very high power capacity batteries with long cycle life could change the optimum balance of batteries versus H2. But can HyDeal deliver?
Game Changing combined with next up H2 locomotives using cheap $1.5/kg H2 coming soon.
The bag of tricks for massively reducing fuel consumption and net carbon emissions is huge. Only carbon taxes are needed to motivate the industry to stop spewing....
Nice to competition to accelerate L5 and reduce accidents sooner, and lower cost of L5 systems.
A few advantages over turboprops: 1. Efficiency of gas turbines at loitering power levels (for reserve) are really bad. Efficient slower flying capability with a larger wingspan will work in favor of the reserve requirements. 2. Regen during descent should save energy and allow steeper later descents maybe saving time also. 3. Air breathing engines lose power with altitude, proportional to density. Larger propellers will allow the same electric motors to push the aircraft much faster at higher altitude.
This is a very good approach! The OEM's tend to do the "expensive add-on packages" scam, as they would rather you crash and scrap your recent car, to sell you a new car. The negative incentive to not make these safety improvements standard, especially on EV's increases vehicle production emissions in the name of profits. Health, safety, and pollution are compromised. "Connected-vehicle technologies allow vehicles to relay important safety information to each other to avoid crashes" is long overdue. There should be an incentive structure to accelerate Connected-vehicle technologies.
Looks like the i-MiEV, which had terrible aerodynamics, maybe better going backwards. But at these speeds it may be a good tradeoff.
Blending the H2 tank into the wing would make a much more efficient design overall. All the appendages that are not bombs, refueling, or radars are starting to look ridiculous. Except if the H2 storage tech is evolving to fast. Great to see aviation decarbonization progress!