Viewing profile — Tuxer

Correct. Fuel is around 16/36th of the CO2 mass it emit when being burnt. A 777 carries around 120 tons of fuel for a SF/LON flight, so that's around 300 tons of emissions per flig…

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 sy…

Thats not exactly right. It’s simply that you cannot sell something built >51% by the factory under experimental rules, you’d need to have it FAA certified which this isn’t ( for t…

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 air…

Yeah agreed, even on the GA market, the eFlyer 2 is a much more aerodynamic design (low wing, wheel pants, lower windshield height) which is already claiming 36kW cruise at 100kts.…

I'm surprised nobody talked about the potential implications of effectively embedding, now that the device is standalone, a lithium ion battery into your skull. I'm not a battery h…

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 circle…

Apple does the same thing, where they claim iMessage is ETE encrypted, but the keys (so capabilities to read) are stored on their servers.

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 atta…

> Driving has been made impossible Sorry you can't drive a 2-ton vehicle through one of the most dense cities in the world, that also has a very extensive public transportation sys…

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 expen…

"common type" is what people usually use.

92kWh

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 bur…

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…

I would WAY rather lose my engine and instruments in VFR conditions (where I can see the ground and see where I'm going) compared to IFR, where I can't see where I'm going and I'm …

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…

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…

Jet-A at airfields isn't a valid measure of how much airlines. I read that most airlines pay around 1.10$/gal for Jet-A.

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 a…