Akromaster Posted November 11, 2015 Share Posted November 11, 2015 How cool is this: Related story here: http://www.abc.net.au/news/2015-11-11/aussie-inventor-flies-jetpack-around-statue-of-liberty/6929444 Link to comment Share on other sites More sharing options...
eightyknots Posted November 12, 2015 Share Posted November 12, 2015 This has been a very long development. This is the timeline from the company's website: The timeline below outlines key steps in the development of the Martin jetpack: 1981 Glenn Martin started research on the concept of a personal jetpack that could fly much longer than 30 seconds 1984 Mathematical research and "eureka" moment 1988 First test-rigs and mathematical validation by University of Canterbury 1997 First lift-off of piloted jetpack (tethered) by Vanessa Martin 2005 First untethered flight of jetpack 2007 Jetpack performs first outdoor manned figure eights, pirouettes and circuits. First patents filed. 2008 Product introduction at Oshkosh airshow and public reveal of the jetpack 2009 Conversion to fly by wire, PhD and simulator research started 2010 First manned flight of the jetpack over five minutes in duration 2011 Flight to 5,000 feet and first parachute deployment 2012 First demonstration of rapid opening parachute system 2013 Prototype 12 gains authorisation from New Zealand Civil Aviation Authority for manned test flights I have spoken to Glenn Martin a few times at air shows in New Zealand and, from conversations I had with him, had the impression that the initial idea was to develop this for the Fun Factor aviation ideal. However, once he started to get investors on board, the company started to focus on those military and law enforcement dollars from North America and China. Since then, Glenn has left the Board of Directors. Link to comment Share on other sites More sharing options...
Happyflyer Posted November 12, 2015 Share Posted November 12, 2015 This has been a very long development. This is the timeline from the company's website:The timeline below outlines key steps in the development of the Martin jetpack: 1981 Glenn Martin started research on the concept of a personal jetpack that could fly much longer than 30 seconds 1984 Mathematical research and "eureka" moment 1988 First test-rigs and mathematical validation by University of Canterbury 1997 First lift-off of piloted jetpack (tethered) by Vanessa Martin 2005 First untethered flight of jetpack 2007 Jetpack performs first outdoor manned figure eights, pirouettes and circuits. First patents filed. 2008 Product introduction at Oshkosh airshow and public reveal of the jetpack 2009 Conversion to fly by wire, PhD and simulator research started 2010 First manned flight of the jetpack over five minutes in duration 2011 Flight to 5,000 feet and first parachute deployment 2012 First demonstration of rapid opening parachute system 2013 Prototype 12 gains authorisation from New Zealand Civil Aviation Authority for manned test flights I have spoken to Glenn Martin a few times at air shows in New Zealand and, from conversations I had with him, had the impression that the initial idea was to develop this for the Fun Factor aviation ideal. However, once he started to get investors on board, the company started to focus on those military and law enforcement dollars from North America and China. Since then, Glenn has left the Board of Directors. The Martin 'jetpack' isn't a jet. The one above is. It is very different to the Martin jetpack. 1 Link to comment Share on other sites More sharing options...
kasper Posted November 12, 2015 Share Posted November 12, 2015 Rocket "jet pack" = US 1960's, very short range, very dangerous fuel, a few fans still working on development of this but will always be limited by the mass of the fuel required to get up there - counted in seconds of endurance. Fan-type "jet pack" = NZ 1980-2015 Martin - very long development phase and not unsurprising heading towards military level pricing and use - its really a very small helicopter Jet engine "jet pack" = US 2015 - the one on this thread. You knew it was coming once 15kg super model size turbo jets were putting out over 100kg of thrust ... 90kg pilot, 30 kg engine, 15kg frame + 25kg fuel = thrust > mass + biggest grin imaginable ... but do not ask about safety features ;-). And your 25kg of fuel will disappear in around 10 min ... Link to comment Share on other sites More sharing options...
facthunter Posted November 12, 2015 Share Posted November 12, 2015 The engine out performance worries me. Nev 1 Link to comment Share on other sites More sharing options...
kasper Posted November 12, 2015 Share Posted November 12, 2015 The engine out performance worries me. Nev Then do not strap a couple of model jet engines to your sides ... or strap a slimline parachute to your back and fly higher - simples ;-) Link to comment Share on other sites More sharing options...
eightyknots Posted November 12, 2015 Share Posted November 12, 2015 The engine out performance worries me. Nev A rocket-propelled BRS system may be useful for the Jet pack. I am not sure how that would be connected "aircraft" as such though. Link to comment Share on other sites More sharing options...
kasper Posted November 12, 2015 Share Posted November 12, 2015 A rocket-propelled BRS system may be useful for the Jet pack. I am not sure how that would be connected "aircraft" as such though. I'm not sure I want a solid fuel rocket strapped to my ar$e 1 Link to comment Share on other sites More sharing options...
rgmwa Posted November 13, 2015 Share Posted November 13, 2015 The engine out performance worries me. Nev No need to worry Nev. Engine out acceleration is still quite good, the flight characteristics are known and the touchdown is predictable. rgmwa 1 Link to comment Share on other sites More sharing options...
eightyknots Posted November 13, 2015 Share Posted November 13, 2015 No need to worry Nev. Engine out acceleration is still quite good, the flight characteristics are known and the touchdown is predictable.rgmwa Who wants to estimate the glide ratio of the jetpack? Link to comment Share on other sites More sharing options...
facthunter Posted November 13, 2015 Share Posted November 13, 2015 Better to know terminal velocity. Nev Link to comment Share on other sites More sharing options...
Akromaster Posted November 13, 2015 Author Share Posted November 13, 2015 Better to know terminal velocity. Nev "Terminal" velocity is usually 0 kph?? Other info from google suggests a chute is part of the jetpack...Yves Rossi (aka jetman) has a chute so why not? Link to comment Share on other sites More sharing options...
jetjr Posted November 13, 2015 Share Posted November 13, 2015 Surprised to see BRS losted for future upgrades?? Testing over water, you would hope it comes off easily It is very cool Link to comment Share on other sites More sharing options...
facthunter Posted November 14, 2015 Share Posted November 14, 2015 Terminal velocity as generally interpreted is the maximim in free fall, when drag equals weight At the end of most "falls" you have no velocity. Falling out of an aeroplane never killed anyone. It's what happens later that kills you. Nev Link to comment Share on other sites More sharing options...
Akromaster Posted November 14, 2015 Author Share Posted November 14, 2015 Terminal velocity as generally interpreted is the maximim in free fall, when drag equals weight At the end of most "falls" you have no velocity. Falling out of an aeroplane never killed anyone. It's what happens later that kills you. Nev Yea I know...was a 'dad' joke. Notice how he pivots in the air? I wonder if there's some thrust vectoring going on there. They talk of some computer controlled flight so you can "enjoy the view", so for example you could hit a button to enable hover mode. now that would be cool... Link to comment Share on other sites More sharing options...
Guest ozzie Posted November 14, 2015 Share Posted November 14, 2015 These are two large size RC model jet engines, yes they are modified with thrust vectoring and tilt to provide upward, forward and rear thrust. Pretty freaking cool and more practical for the 'recreational rocketeer'. Small 'chute would be the go if you fly high enough. I'd be more worried about single engine out. and 'man with gun' situations. Auto hover/pilot? hey we live in the digital age, anything is possible if you have the cash. http://jetpackaviation.com/ Now big question is "Quanto costa?" Link to comment Share on other sites More sharing options...
eightyknots Posted November 14, 2015 Share Posted November 14, 2015 Yea I know...was a 'dad' joke.Notice how he pivots in the air? I wonder if there's some thrust vectoring going on there. They talk of some computer controlled flight so you can "enjoy the view", so for example you could hit a button to enable hover mode. now that would be cool... A jetpack auto pilot system? Link to comment Share on other sites More sharing options...
Guernsey Posted November 14, 2015 Share Posted November 14, 2015 I'm not sure I want a solid fuel rocket strapped to my ar$e My wife recons that I don't need one of those as I have one already built into my ar$e. . Break wind Alan. Link to comment Share on other sites More sharing options...
dazza 38 Posted November 14, 2015 Share Posted November 14, 2015 10 minutes seems like a long time to be suspended in the harness. When doi g confine space training, were told that if somebody does end up suspended in their safety harness, it is paramount to get to them quickly as the circulation is very restricted to the crouch area after a short amount of time. Maybe the harness is engineered better on these. I dunno much about it. Link to comment Share on other sites More sharing options...
eightyknots Posted November 14, 2015 Share Posted November 14, 2015 My wife recons that I don't need one of those as I have one already built into my ar$e. .Break wind Alan. Perhaps you can reduce the amount of reserve fuel you need to carry in your tanks, Guernsey? Link to comment Share on other sites More sharing options...
Keenaviator Posted November 14, 2015 Share Posted November 14, 2015 Perhaps you can reduce the amount of reserve fuel you need to carry in your tanks, Guernsey? Or a human jato assist... Link to comment Share on other sites More sharing options...
Kamloops Posted November 15, 2015 Share Posted November 15, 2015 I would love to have that to rip around in ☺ Link to comment Share on other sites More sharing options...
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