Speaking of Jules Vern and Round The World. A new sailing record was set recently, which didn't _quite_ beat 40 days - it took them 40 days and almost 11 hours. If you've ever seen a SailGP boat flying up out of the water on their hydrofoils and doing 100kmh - imagine a 32m long 26m wide ocean going trimaran doing the same thing in a non stop circumnavigation of the globe. I think they _averaged_ 27knots or 50kmh! ht…
Flying Around the World in under 80 Days
11–20 of 24 posts
Re: Flying Around the World in under 80 Days
#12Can someone give me some notes on the legality of this?
> Finally, can it be flown legally? Most of the trajectory can pass over the oceans, but skipping land completely would take too much of a detour, and likely be incompatible with prevailing winds. Although the political climate may be hostile, it is still legal to fly civil craft over other countries.
Re: Flying Around the World in under 80 Days
#13Re: Flying Around the World in under 80 Days
#14You'll get about 1/15-th of the lithium+water mass as hydrogen. So if you want to replenish 1 m^3 of hydrogen at STP (or around 1/8-th of the gas bag volume), you'll need around 600 grams of reagents.
Re: Flying Around the World in under 80 Days
#15This is an interesting article from a couple of days ago about tracking diy balloons long distance: https://spectrum.ieee.org/explore-stratosphere-diy-pico-ball... . Given the tracker can be built for $14 it might be worth it to test a version with just the custom hydrogen enclosure and tracker and see how far it gets.
Re: Flying Around the World in under 80 Days
#16Can someone give me some notes on the legality of this?
Perhaps next time read the whole article? > Finally, can it be flown legally? Most of the trajectory can pass over the oceans, but skipping land completely would take too much of a detour, and likely be incompatible with prevailing winds. Although the political climate may be hostile, it is still legal to fly civil craft over other countries.
So no, it's not legal in many ways.
Re: Flying Around the World in under 80 Days
#17Speaking of Jules Vern and Round The World. A new sailing record was set recently, which didn't _quite_ beat 40 days - it took them 40 days and almost 11 hours. If you've ever seen a SailGP boat flying up out of the water on their hydrofoils and doing 100kmh - imagine a 32m long 26m wide ocean going trimaran doing the same thing in a non stop circumnavigation of the globe. I think they _averaged_ 27knots or 50kmh! ht…
And when the world was still flooded with money and the music was awesome (so 2004), Jeremy Clarkson did a series about inventions, one of them being the jet plane, and he flew commercial around the world in 120 hours: https://www.youtube.com/watch?v=o8D_UzMhjH8
Re: Flying Around the World in under 80 Days
#18Earlier quoted context omitted.
Perhaps next time read the whole article? > Finally, can it be flown legally? Most of the trajectory can pass over the oceans, but skipping land completely would take too much of a detour, and likely be incompatible with prevailing winds. Although the political climate may be hostile, it is still legal to fly civil craft over other countries.
Sorry, but that's just ignorance. It's an UAV, it's not registered, has no type certificate. He doesn't even seem to be aware of airspaces. So no, it's not legal in many ways.
"Finally, what are the legal implications of flying an airship drone over foreign air spaces? This very complex area clearly requires in-depth study and careful consideration, and it lies completely out of my depth. The primary objective is just to avoid being shot down since I'm not planning to visit any foreign countries in person, so allow me to just touch over the main issues."
Re: Flying Around the World in under 80 Days
#19Earlier quoted context omitted.
Perhaps next time read the whole article? > Finally, can it be flown legally? Most of the trajectory can pass over the oceans, but skipping land completely would take too much of a detour, and likely be incompatible with prevailing winds. Although the political climate may be hostile, it is still legal to fly civil craft over other countries.
Sorry, but that's just ignorance. It's an UAV, it's not registered, has no type certificate. He doesn't even seem to be aware of airspaces. So no, it's not legal in many ways.
Re: Flying Around the World in under 80 Days
#20Though at high altitudes the winds are such that it would be less of an airship and more of a steerable balloon.