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0 pointssaalweachter9y ago0 comments

Eh, it's always been my understanding that the problem with rocket packs (and by extension, this) was fuel. Wingless flight -- and believe it or not, helicopters are "winged" flight, which is why they can "glide" (autorotate) -- requires insane fuel consumption.

Someone figuring out how to strap jet engines to themselves and not instantly die is impressive, but it's not really solving the hard problem. The "10 minutes" claim is probably already based on loading up with the maximum amount of fuel the person can carry - add more and you don't get off the ground without adding another engine, which burns more fuel...

So I find the claim totally believable, and impressive for what it is, but it's not the sort of thing that has me reaching for my wallet to throw money at the guy.

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Robotbeat9y ago

Agreed. And I think the comparison with a jet ski or other recreational vehicle is apt: this is for fun and show, for extreme sports, and perhaps some military or rescue applications. But pretty sweet nonetheless.

(Jet ski not the perfect analogy as jet skis are fairly safe and it's not unheard of for people who live on islands to use them for errands, etc, but yeah most people seem to use them for fun.)

You could extend the range and flight time by using a wingsuit, allowing up to a glide ratio of 3 or 4 without using structures other than the human body. But wingsuit flying and this iron man suit thing require immense strength, so physical exhaustion is probably even more of a constraint in this situation than fuel consumption.

rawland9y ago

Wingsuit and jet engines strapped to a human body?

Exists: Jetman - Yves Rossy (also a TED Video)

https://www.youtube.com/watch?v=x2sT9KoII_M

Enjoy. ;-)

(That guy crosses the English channel at ~3:50.)

Robotbeat9y ago

Absolutely, however Yves Rossy's wing is rigid (cheating! :) ) and the setup requires diving off from an airplane (or a cliff or tall building) and landing with parachute.

I was just talking about keeping the vertical take-off, vertical landing and just adding extra material flaps between the arms and legs like a wingsuit to extend range and endurance.

j / k navigate · click thread line to collapse

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Robotbeat9y ago

(Jet ski not the perfect analogy as jet skis are fairly safe and it's not unheard of for people who live on islands to use them for errands, etc, but yeah most people seem to use them for fun.)

rawland9y ago

Wingsuit and jet engines strapped to a human body?

Exists: Jetman - Yves Rossy (also a TED Video)

https://www.youtube.com/watch?v=x2sT9KoII_M

Enjoy. ;-)

(That guy crosses the English channel at ~3:50.)

Robotbeat9y ago

Absolutely, however Yves Rossy's wing is rigid (cheating! :) ) and the setup requires diving off from an airplane (or a cliff or tall building) and landing with parachute.

I was just talking about keeping the vertical take-off, vertical landing and just adding extra material flaps between the arms and legs like a wingsuit to extend range and endurance.

j / k navigate · click thread line to collapse