There is a ballistic chute on the cirrus SF50 (their single-engine jet). It's a 7 seater IIRC (6 minimum), and roughly the same weight (2.7T for the cirrus, 3.1 for the lilium).
This type of antiscientific/clickbait reporting shouldn't be on HN. ITER (whatever you think of its results, its competition with more modern approaches like commonwealth fusion systems, and fusion in general) has never…
Transoceanic aircraft need lots of ETOPS time. For example the boeing 777 (twin-engine, transoceanic) has an ETOPS of 330 minutes, so it always needs to be 330 min away from an airport (which is 11 hours of flight from…
those aren't super hornets by the way (no civilian would get an authorization to fly a super hornet). They're the A/B, original hornet version, and any superhornet would fly circles around one.
hi it's me caltrain, serving santa clara and growing 2x in 15 years https://nationaltransitdatabase.org/california/peninsula-cor...
absolutely nothing. If the cost of carbon removal was 5$/ton, we wouldn't be having this climate change problem whatsoever.
If we're in nitpick land, it truly is important (especially in that 737 case) to remember that stalls on wings has nothing to do with speed, and everything to do with angle of attack (the angle between the wing and the…
For what it's worth, there is a BIG difference between 22 million tons to orbit (LEO), and the Sun-Earth L1 point, in terms of delta-v.
Tesla moved to 21700 on model 3 and newer models
Space isn't like a highway where you can move from A to B at minimal expense. Switching orbits, both orbit heights but mainly orbit inclinations, comes at a very high delta-V expense and therefore propellant expense,…
I was unclear in my weight explanations. The OP’s point was that one of the advantages of fossil fuel aircraft was its ability to shed weight during flight from its fuel source burning away, and I claimed that was…
Hehe I also fly a super decathlon for aerobatics. 0.3mile finals! ;) For a VFR aircraft I don't mind an iPad-type device for nav. I did my initial training on a 6pack 152 and I was fine with that. I'm mostly interested…
This is wrong on many levels: 1) General aviation doesn't rely at all on the weight difference from fuel burn for flight planning (I am IFR certified and fly Cirrus SR22s). My fuel not burning in my wings wouldn't…
High compression ratio / turbo gas engines definitively do. Try pushing a BMW M3 ( competition for the model 3 perf ) on 87 and you’ll see how long the engine lasts. Look up engine knock.
Well if you're investing a lot in newer plane tech, yeah I'd like them to think about the externalities of what they do and find alternative solutions. For example on high-flying airliners (I expect this plane to, like…
Given the current emissions of air travel I find fairly repulsive to spend that much money designing a new airplane going completely in the wrong direction in terms of fuel efficiency. There is no way ( regardless of…
It is. 40% of french emissions are due to personal transportation (cars), 8% airplanes.
https://climateactiontracker.org/countries/ As you can see, the US response is critically deficient.
did no one see armageddon, seriously?
I'd send denis villeneuve :)
The first model Ss that have hit 10 years and 200k miles have shown an average of 3% battery capacity decrease. Car batteries aren't phone batteries :)
Because he/she doesn't know what he's talking about. Jets will always cruise at their maximum allowed altitude except for some really short flights. In cruise the only thing you're fighting is aerodynamic drag (no…
Once again, making me proud to pay CA taxes. If they do not take large hydro into account when calculating this 100%, I wonder what we'll do with the dams. Destroy them to let the rivers free-flow again? Dams would have…
GPS is passive only, you’re not emitting on the RF spectrum to get a fix
As you become "good" at driving in harder conditions, you'll use your butt (which is really how you're physically connected to the vehicle) to figure out the traction state of the car, to know if the car is sliding, if…
There is a ballistic chute on the cirrus SF50 (their single-engine jet). It's a 7 seater IIRC (6 minimum), and roughly the same weight (2.7T for the cirrus, 3.1 for the lilium).
This type of antiscientific/clickbait reporting shouldn't be on HN. ITER (whatever you think of its results, its competition with more modern approaches like commonwealth fusion systems, and fusion in general) has never…
Transoceanic aircraft need lots of ETOPS time. For example the boeing 777 (twin-engine, transoceanic) has an ETOPS of 330 minutes, so it always needs to be 330 min away from an airport (which is 11 hours of flight from…
those aren't super hornets by the way (no civilian would get an authorization to fly a super hornet). They're the A/B, original hornet version, and any superhornet would fly circles around one.
hi it's me caltrain, serving santa clara and growing 2x in 15 years https://nationaltransitdatabase.org/california/peninsula-cor...
absolutely nothing. If the cost of carbon removal was 5$/ton, we wouldn't be having this climate change problem whatsoever.
If we're in nitpick land, it truly is important (especially in that 737 case) to remember that stalls on wings has nothing to do with speed, and everything to do with angle of attack (the angle between the wing and the…
For what it's worth, there is a BIG difference between 22 million tons to orbit (LEO), and the Sun-Earth L1 point, in terms of delta-v.
Tesla moved to 21700 on model 3 and newer models
Space isn't like a highway where you can move from A to B at minimal expense. Switching orbits, both orbit heights but mainly orbit inclinations, comes at a very high delta-V expense and therefore propellant expense,…
I was unclear in my weight explanations. The OP’s point was that one of the advantages of fossil fuel aircraft was its ability to shed weight during flight from its fuel source burning away, and I claimed that was…
Hehe I also fly a super decathlon for aerobatics. 0.3mile finals! ;) For a VFR aircraft I don't mind an iPad-type device for nav. I did my initial training on a 6pack 152 and I was fine with that. I'm mostly interested…
This is wrong on many levels: 1) General aviation doesn't rely at all on the weight difference from fuel burn for flight planning (I am IFR certified and fly Cirrus SR22s). My fuel not burning in my wings wouldn't…
High compression ratio / turbo gas engines definitively do. Try pushing a BMW M3 ( competition for the model 3 perf ) on 87 and you’ll see how long the engine lasts. Look up engine knock.
Well if you're investing a lot in newer plane tech, yeah I'd like them to think about the externalities of what they do and find alternative solutions. For example on high-flying airliners (I expect this plane to, like…
Given the current emissions of air travel I find fairly repulsive to spend that much money designing a new airplane going completely in the wrong direction in terms of fuel efficiency. There is no way ( regardless of…
It is. 40% of french emissions are due to personal transportation (cars), 8% airplanes.
https://climateactiontracker.org/countries/ As you can see, the US response is critically deficient.
did no one see armageddon, seriously?
I'd send denis villeneuve :)
The first model Ss that have hit 10 years and 200k miles have shown an average of 3% battery capacity decrease. Car batteries aren't phone batteries :)
Because he/she doesn't know what he's talking about. Jets will always cruise at their maximum allowed altitude except for some really short flights. In cruise the only thing you're fighting is aerodynamic drag (no…
Once again, making me proud to pay CA taxes. If they do not take large hydro into account when calculating this 100%, I wonder what we'll do with the dams. Destroy them to let the rivers free-flow again? Dams would have…
GPS is passive only, you’re not emitting on the RF spectrum to get a fix
As you become "good" at driving in harder conditions, you'll use your butt (which is really how you're physically connected to the vehicle) to figure out the traction state of the car, to know if the car is sliding, if…