wj9eh

wj9eh t1_j962gyc wrote

Reply to [text] Today in cleaning my office no matter what. by Mrjocrooms

Fantastic and I'm pleased for you. You can achieve anything you want. But may I be so bold as to give you a viewpoint, from someone who has been in a similar position?

Just have a think, what if you don't have your office clean by tomorrow? Will this be ok? How will you feel? The key to happiness, I believe, is to be ok with this. To accept that, just, whatever is ok. The way the world is right now is ok. That doesn't mean you don't clean your office or do anything else by any means, it's just to be relaxed and fine with reality.

Everything is fine; you are fine.

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wj9eh t1_j666xla wrote

Reply to comment by Severe-Archer-1673 in The Stratolaunch Roc, the largest aircraft ever flown, has just completed a 6-hour test flight. It aims to be a platform to launch reusable hypersonic craft from an altitude of 10 km by lughnasadh

Well I can speak for commercial aviation, where takeoff weight does have a few non-arbitrary consequences such as what sort of approaches and turns you can make and how much wake you produce. Also, wingspan has already reached its maximum in terms of what can fit in an airport, so now it's just about how heavy planes can get within that limit. But yes, it's as arbitrary as anything.

The space shuttle would be biggest but I'd argue it took off with a rocket, which isn't lifting off using the air but rather in spite of it. Then on the way down, it could only glide and not support itself straight and level. Again, as arbitrary as you like. It's all a miracle they can fly!

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wj9eh t1_j4jwoaq wrote

Reply to comment by wooltab in The Stratolaunch Roc, the largest aircraft ever flown, has just completed a 6-hour test flight. It aims to be a platform to launch reusable hypersonic craft from an altitude of 10 km by lughnasadh

Yes. A "large aircraft" for example is, in the regulations, anything over 5,700 kg MTOW. Any time anyone refers to size, it would be MTOW that one would think they're referring to. Otherwise we'd say "wingspan" or "length".

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wj9eh t1_j4hkktn wrote

Reply to comment by Severe-Archer-1673 in The Stratolaunch Roc, the largest aircraft ever flown, has just completed a 6-hour test flight. It aims to be a platform to launch reusable hypersonic craft from an altitude of 10 km by lughnasadh

Well as an aviation professional I can tell you that more or less everything is based on MTOW. If you're more interested in wingspan, that's of course absolutely fine. The only time that tends to come into play day-to-day is whether a plane can fit down a certain taxiway or a certain parking position or not.

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wj9eh t1_j4ha4je wrote

Reply to The Stratolaunch Roc, the largest aircraft ever flown, has just completed a 6-hour test flight. It aims to be a platform to launch reusable hypersonic craft from an altitude of 10 km by lughnasadh

"Largest" is a bit of a vague term. Aircraft are usually measured by their maximum takeoff weight and, from what I can find, this one's is 590,000 kg compared to the 225's 640,000 kg. They mean longest wingspan.

No denigration of the subject aircraft is present in this comment.

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