Re:Hyundai rolls out 27 heavy-duty hydrogen trucks in Germany
by jubjubbird on Thursday August 04, 2022 @12:12PM
(#32344795)
Seems like more often than not I see them folded up, not in use. Even with the price of diesel. I wonder how much they save?
Re:Hyundai rolls out 27 heavy-duty hydrogen trucks in Germany
by bluGill on Thursday August 04, 2022 @02:50PM
(#32346817)
They are not allowed in all states/areas. So you might be someplace where they are not allowed, or close enough that there isn't a good place to stop and put them back out. I see them in use all the time, but that is a reflection of where I live.
Re:Hyundai rolls out 27 heavy-duty hydrogen trucks in Germany
by jsight on Thursday August 04, 2022 @02:28PM
(#32346546)
Maybe 5% at best? Probably less, given that there's always some time spent at lower speeds too.
Re:Hyundai rolls out 27 heavy-duty hydrogen trucks in Germany
by bombcar on Thursday August 04, 2022 @11:19AM
(#32344070)
A flat front isn't a major issue at all - the most aerodynamic shape is roughly a teardrop - and the "front" of a teardrop is mostly flat anyway.
It's the backend and the wake you cause that is the major problem.
In the U.S., many tractor trailers have something similar, but they fold out on the back and underneath the trailer to make the rig more aerodynamic.
Example: https://www.fleetequipmentmag.com/wp-content/uploads/2015/03...
I've never seen any fold-out attachments for the front, so there's probably not much to be done there, except for the roof of the cab, which often has a built-in fin/wing/whatever to help air get over the trailer.