Earlier quoted context omitted.
The best use case might be short flights over water or other geographic obstacles where driving routes might be much longer or impossible. Like Kahului Airport to Ellison Onizuka Kona International Airport for example.
What happens when a large amount of these batteries get submerged in fresh or salt water?
Heart aerospace completes first flight of largest electric aircraft
81–90 of 170 posts
Re: Heart aerospace completes first flight of largest electric aircraft
#82They could also use electric tugs to and from the runway, not just at the terminal.
Re: Heart aerospace completes first flight of largest electric aircraft
#83Earlier quoted context omitted.
I'd be stunned if they put a MWh of battery on a plane. This plane in particular only has a range of 120 miles electric-only, so it probably has a pack roughly similar to a modern electric pickup. 200 kWh plus or minus. By comparison, a regular regional jet probably has around 40 MWh of energy in jet fuel.
Megawatt-hours (MWh) are one billion times larger than milliwatt-hours (mWh).
Re: Heart aerospace completes first flight of largest electric aircraft
#84Re: Heart aerospace completes first flight of largest electric aircraft
#85Electric aircraft makes no economic sense, but I'd want to see them flying one day nonetheless.
Even if the initial cost of an electric plane is higher than a combustion equivalent, the cost of the aircraft itself is only 5% of its lifetime cost. So an electric aircraft's purchase price could be twice as much and still represent a cost savings for an airline. And that's not even counting other advantages such as reduced maintenance needs for EVs.
Re: Heart aerospace completes first flight of largest electric aircraft
#86> Powered entirely by batteries, X1 used approximately $5 worth of electricity during its first flight It's fun to look at the arithmetic behind this to pull out the assumptions. To lift a 25000 lb mass 1100 ft in the air requires just over 10kWh, but that's assuming no air resistance or friction, so let's triple the energy needed to 30 KWh. Let's add another 10 kWh for forward distance covered (assuming it was mostl…
Re: Heart aerospace completes first flight of largest electric aircraft
#87At 120 miles of useful pure electric range, I can't imagine there are many US corridors where that pure electric range makes sense. That's still a range where the door to door time of a car can still win. I wonder why they don't push the idea of it being a hybrid more, as it seems to me a lot of useful routes are going to rely on the generators. I'd love to see something that can do around 250mi. It would be nice to…
Re: Heart aerospace completes first flight of largest electric aircraft
#88GOOD POINT by my wife. Is there a super high density battery they could use just to have available to count for reserves even if it’s one time use. Just plan never to use it in normal flight.
Re: Heart aerospace completes first flight of largest electric aircraft
#8927 mins endurance (?) for $5 of power. Not bad. I rent a 172 and have been paying a $5/h fuel surcharge for the past few months due war in Iran - but at UK avgas prices 27 mins in my plane would be $55ish. Haven’t looked into the details but kind of crazy impact on economics of aviation if this size plane (10x 172 MTOW) can actually do useful short haul
Re: Heart aerospace completes first flight of largest electric aircraft
#90Air transport in general, not just this airplane, could benefit from a catapult or winch takeoff at airports. It could be electric, it would reduce the most energy-demanding part of flight and make takeoff safer. They could also use electric tugs to and from the runway, not just at the terminal.