Wearable 4MM jetpack tested on speed, agility for runners (w/ Video)

Wearable 4MM jetpack tested on speed, agility for runners (w/ Video)
"Everybody has always wanted to fly. When people hear the word 'jetpack,' that's what they really think about," said Jason Kerestes at Arizona State University. He is one of the busy explorers at ASU trying to bridge gaps between man and machine. Kerestes has done something different with the jetpack concept. He and team have reduced the amount of force; their device does not enable a person to fly, "but we have instantaneous thrust and we can pretty much trigger it to allow for faster movement and agile motion." His jetpack, simply put, does not help you to fly but to run faster, and for the Defense Advanced Research Projects Agency (DARPA), his project's progress means a lot. Kerestes has built his prototype, which is now undergoing tests and refinements.

The project is called 4MM, for 4-minute mile. The overall goal is to get any soldier or any test subject to be able to run a 4-minute mile who was not already capable of doing so. Kerestes started doing his research "kind of by accident," he said. As the owner of a welding business and going to ASU, students came to him; the team at the time was just at the infancy of this project.

"We were developing robots that could assist amputees," said Professor Thomas Sugar of the Human Machine Integration Lab. "And DARPA came back to us and asked if we could develop robots that could assist able-bodied people, and make them able to run faster or do things they couldn't do." Dr. Sugar works on mobile robot navigation and wearable robotics for the rehabilitation of stroke survivors. Kerestes, already interested in the robotic process, welcomed the opportunity to get involved. He said the fact that he could work at designing something and then weld up a prototype the next day substantially reduced their overall time on moving from concept to prototype.

Dr. Sugar said he and Kerestes had their doubts they could come up with something but then decided it was possible. They have seen encouraging results so far. In trials over a 200-meter distance, with the jetpack, they saw a decrease in time and decrease in metabolic cost, the amount of energy required for a person to run at high speeds. In a test, a subject with the jetpack on a sprint ran three seconds faster, and that was with carrying an extra 11.2 pounds of weight, the .

As for military support, Kerestes noted that in a warfare arena, a device such as this could spell the difference between life and death, "if you think of a Navy SEAL or a soldier that must get in somewhere quickly —and get out just as quickly," said Kerestes.


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Personal jetpack gets flight permit for manned test

More information: researchmatters.asu.edu/videos … -soldiers-run-faster

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Sep 12, 2014
Preparing for ISIS?

Sep 12, 2014
Preparing for ISIS?
Interesting you ask, for Jesus which is the name of Esau in Egyptian means, son of Isis and this is also recorded in ancient hieroglyphs. Clearly the return of Isis is a sign

From Revelations 12:-1-2
A great sign appeared in heaven: a woman clothed with the sun, with the moon under her feet and a crown of twelve stars on her head. She was pregnant and cried out in pain as she was about to give birth.

Could Jesus rise again with this jetpack? Could it be the one true path toward heavenly ascension?

From Revelation 12: 3-5
Then another sign appeared in heaven: an enormous red dragon with seven heads and ten horns and seven crowns on its heads. Its tail swept a third of the stars out of the sky and flung them to the earth. The dragon stood in front of the woman who was about to give birth, so that it might devour her child the moment he was born.She gave birth to a son, a male child, who will rule all the nations with an iron scepter.

Sep 13, 2014
C'mon Ko. That;s an extremely weak, no-effort attempt at trolling, even for you. Maybe you should take a power nap and eat something then come back and put a little elbow grease into the.next one.

Sep 13, 2014
Interestingly stupid innovations. I can imagine someone is going to fire Infrared seeking missiles at the jet-packed soldiers roaring past them. Or on hearing the roaring of the jets, just visually leading the target with a PPG. What a waste of jet fuel.

Sep 13, 2014
Skepticus, read the article ya dimwit. It uses electric fans, not real jet engines.

Sep 13, 2014
Just don't fall down.

Sep 13, 2014
This technology was marketed by ACME back in the 60's. Wile E Coyote tested it on numerous occassions with unintended consequences.

(However, this version does not seem to incorporate the roller skate option.)

History repeats itself...

Beep! Beep!

Sep 13, 2014
Ah, Viper, my deepest apologies - the project is even dumber than what credits i gave it for. Electrically powered, these souped-up hairdriers will waste even more natural resources (in the electricity generation process chain) to store a limited amount of electrical energy in its batteries pack. Every modellers knows how short the useful time of EDFs are. Fossil fuel powered, at least it has class, spews fire and sounds awesome..!

Sep 13, 2014
They should try combining this with already available jumping stilts, which are pretty crazy. Jumping stilts are basically a smart version of the old Wile-E-Coyote idea of tying ACME industrial springs to your feet. Seach for jumping stilts on youtube, the vids are pretty awesome.

You can attain pretty high running speeds with jumping stilts; one source has a guy doing 23.5mph for a quarter mile, but you are a little slow to accelerate compared to a human runner. Turning quickly can also be an issue. Add this sort of jetpack...problems solved.

Of course, stilts are already dangerous. To combine both, they should maybe add a hard suit that keeps your knees from bending the wrong way, adds back support, etc. And also of course it would be wise to have some impact/skid etc protection.

Sep 13, 2014
Actually, for credit where credit is due, iirc, jumping stilts actually go way back. There was the notorious 'Spring Heeled Jack' of Victorian England, who may have just been entirely an urban legend. I forget if he was supposed to be a mugger or rapist or murderer or what, but he supposedly had springs hidden in his shoe/boot heels; activating them would eject the heel but he'd use it to jump over a tall wall on a planned escape route. So iirc he had to install a new pair of heels each time.

In WW2, Russia looked into having runners use something close to and more or less along the lines of contemporary style jumping stilts. What they were hoping was that a runner on stilts could close the distance to a tank and attach a sticky bomb.

Sep 13, 2014
So if you think this ~jetpack thing would be useless...consider that when you are trying to come up with a plan to do something like defeat a particular weapon or defense etc, it will often come down to using a stopwatch and 'can you do X in Y seconds?'

Stuff like this, maybe it never gets into general use because it's not generally useful. But someone looking for a particular plan to crack a particular nut may discover that using it to jump a particular gap or run across a particular bridge in Y seconds becomes a part of a workable plan.

I wouldn't call it a jet pack though. Booster pack maybe? Apologies to Magic: The Gathering nerds...

Sep 13, 2014
Perhaps future iterations could be vectored to assist in jumping. Games like destiny, titanfall, and infamous second son use similar devices.

Sep 13, 2014
Preparing for ISIS?


Then that's a little worrying, isn't it? How much will it cost to give soldiers the ability to survive rare edge cases where they needed to run 3 seconds faster to get away? Meanwhile terrorists will continue to make bombs out of old electronics, batteries, and household chemicals.

Being more technologically advanced gives you a net advantage if the boost you get is greater than the cost of doing so. If not, you are creating an advantage with a net disadvantage for a long campaign. Of course this is prototype stuff, but I can't help but feel that even having some sort of rocket mech soldier will be by that time superseded by drones anyway. I'm no expert, but it's something to think of. Not all advances are advances that are worth it in practice.

Sep 14, 2014
"Being more technologically advanced gives you a net advantage if the boost you get is greater than the cost of doing so"

-You're not considering all the many things this can be used for. Assaulting a position requires running from cover to cover, and the less time exposed the better. Merely assisting in walking up hills in full combat gear would reduce fatigue. And getting from place to place faster than the enemy reduces his ability to outflank or ambush you while increasing your own.

There will be boots on the ground for the foreseeable future and increasing their speed and range is an advantage.

"The infantry is also the only combat arm which can ultimately decide whether any given tactical position is occupied, and it is the presence of infantry that assures control of terrain."

"The army's infantry is its most essential component. Even today, no army can take and hold any ground without the use of infantry." — George Nafziger

Sep 14, 2014
"The army's infantry is its most essential component. Even today, no army can take and hold any ground without the use of infantry." — George Nafziger

Why would the military use infants for military ends? I know Bush used the non-existent incubator babies as an excuse to invade Iraq, but unless the enemy is topless women I don't think that infants can find their targets

Sep 14, 2014
Why in hell use a Rube Goldberg device like this when there is an existing electric off-road bike that can carry the soldier with all his gear faster and silently into battle (question mark)
My damn keyboard (Win 7 Home Premium) all of a sudden types É instead of a question mark for some reason!

Sep 14, 2014
Kochevnik demonstrates russian humor. I am laughing behind my smirk.

"Why in hell use a Rube Goldberg device like this when there is an existing electric off-road bike that can carry the soldier with all his gear faster and silently into battle (question mark)"

-Soldiers can't always be riding bikes now can they?

Sep 14, 2014

-Soldiers can't always be riding bikes now can they?

They can if the bikes go 40-50 mph.Actually,I read it in an article about special forces needing a way to get to and out of hot zones quickly where air insertion wasn't an option.


Sep 14, 2014
Who needs soldiers anymore? The concept of infantry is outdated. Just watch as ISIS terrorists hit the dust when smart weaponry takes them out wholesale.

Troops are already burdened with a lot of mass - between 40 and 200 (! yup) lb of gear depending on the class of soldier. Obviously, carrying that much weight around can be counterproductive, but as I've stated, that isn't necessary anymore.

Sep 14, 2014
"They can if the bikes go 40-50 mph.Actually,I read it in an article about special forces needing a way to get to and out of hot zones quickly where air insertion wasn't an option."

-You mean like these guys?
http://youtu.be/I5WcNcDusKU

-You can ride but you can't hide.

Infantry spend most of their time on foot because it's necessary.
Who needs soldiers anymore? The concept of infantry is outdated
Instead of pretending you know what you are talking about why not do a little research? Only people can occupy ground.

Sep 15, 2014
Instead of pretending you know what you are talking about why not do a little research?
You see how you are? These types of comments do nothing to establish your credibility with the users of this forum.
Only people can occupy ground.
Who needs to occupy the ground? No western power is trying to "take" the territory. The effort to control the current situation with ISIS and Taliban insurgents can be accomplished without placing troops on the ground. So, instead of pretending you know what you are talking about why not do a little thinking on the subject?

Sep 15, 2014
The effort to control the current situation with ISIS and Taliban insurgents can be accomplished without placing troops on the ground. So, instead of pretending you know what you are talking about why not do a little thinking on the subject?

Haven't you been watching the last 20 years? It's not TAKING "the ground" that's important - it's HOLDING it for a long enough period for the residents achieve sufficient stability to defend their own selves....
Were any of you "military comment geniuses" actually even in the service?!?

Sep 15, 2014
"You mean like these guys?"
Those guys don't have air support,so they are going to get creamed.
Special forces need a way to get to the front quickly before they can attempt to hold ground.Why else would the Pentagon be looking at buying hybrid bikes for their forces?

Sep 15, 2014
"Who needs to occupy the ground? No western power is trying to "take" the territory. The effort to control the current situation with ISIS and Taliban insurgents can be accomplished without placing troops on the ground"

Western airstrikes are in support of iraqi and kurdish ground troops. At least read the news before you comment.

"Special forces need a way to get to the front quickly before they can attempt to hold ground.Why else would the Pentagon be looking at buying hybrid bikes for their forces?"

-These little jet packs are not meant to replace vehicles. As I said there is always the need to patrol and assault and defend on foot. ALWAYS.
https://www.youtu...eN60EFnc

Sep 15, 2014


-These little jet packs are not meant to replace vehicles. As I said there is always the need to patrol and assault and defend on foot. ALWAYS.
https://www.youtu...eN60EFnc

I am in no way denying that boots on the ground are essential to take and hold ground. I cannot,however,see the point of jet packs worn on soldier's backs,especially when you consider they are weighed down with other supplies.That's why it makes sense to give the soldier a means of carrying all that kit,and make good speed in the bargain,and arrive at the battle ready to fight.

Sep 16, 2014
Did you watch the vid? How do you maneuver motorcycles through dense brush, doorways, over walls, across rooftops, etc? How does a soldier hop on his bike to get to cover when he comes under fire?

You're not thinking this through. These things can assist in lugging heavy kit uphill.

Sep 16, 2014
Yes,I watched the video.Unless it supplied enough power to enable the user to fly,I don't see how it helps on anything but flat ground or small hills.For climbing walls,it would need a swivelling air nozzle directed downward,making it more complicated-I can't see how you could develop enough thrust to significantly help climb up walls,and still keep the batteries small enough to carry.For cross country travel using dirt trails,the electric bike would be far superior to a Rube Goldberg jet pack,which would run out of battery power pretty quickly.Bikes would enable a rider to carry a heavy pack on his back.Think I'm not thinking it through? See this video:https://www.youtu...Hh2eqlTA
Dirt bikes can negotiate most terrain humans can,including through doorways, dense brush,over rocks,up steep slopes,and with much less effort and at greater speed.

Sep 17, 2014
No, I meant that motorcycles are no good for climbing walls. You being intentionally obtuse? A mc rider caught in an ambush must jump off his bike and run for cover. A mc rider would need to jump off his bike to help a wounded comrade. A jet pack would help him get there faster. Etc.

And as tech improves these things will have more power.
Dirtbikes can negotiate through doorways
Ahaahaaa how do you breech a door on a mc with a weapon in your hand? You and your team all ride in together?
http://youtu.be/7r1GL6diBFc

Sep 17, 2014
Ghost,I think you are beating a dead horse here,and are too stubborn to admit your jet pack is a silly concept.Okay,two scenarios: Your man with the jet pack is propelled cross country with less effort than unassisted walking/running,but he STILL has to move under his own power on his own two feet.On the other hand,the soldier on his SILENT electric dirt bike expends only enough energy to balance his bike,and can ride for 2 hours at considerable speed. Who will be the physically exhausted soldier when he reaches his destination?

Sep 17, 2014
Not mine dude. It belongs to Jason Kerestes at Arizona State University and the Defense Advanced Research Projects Agency (DARPA) who feels that "his project's progress means a lot. Kerestes has built his prototype, which is now undergoing tests and refinements."

DARPA knows a lot more about fighting wars than you do yes? And DARPA feels that this gadget is a worthwhile investment, which is why DARPA is funding further development.
he STILL has to move under his own power on his own two feet
Correct. Which is ALWAYS necessary.
dirt bike expends only enough energy to balance his bike
Dirt bikes are not very useful in clearing city blocks of enemies.

Your continued efforts only show how little you know about combat. Dirt bikes are already part of the US inventory
http://www.army.m...h_tanks/

-along with ATVs, APCs, and other vehicles for moving troops around. When they get there they still have to walk.

Sep 17, 2014
This whole thing makes me think of the origins of the British SAS in WW2 in North Africa: https://www.youtu...bA7sAYfQ
They mounted multiple machine guns on jeeps,and staged very effective raids on Nazi airfields,destroying many aircraft,and exiting before the Germans could react.So I can envision special forces on quiet bikes coming in uninvited,raising all hell in enemy camps,and getting the hell our of Dodge before the enemy can even react.

Sep 18, 2014
Looking ahead, this jetpack for soldier concept will run into difficulties quite soon. How do the user brake suddendly or change direction abruptly? Humans legs are wonderful in that respect, within speed limitations. How does the system stand up if the user need to dive into a muddy or sandy hole to avoid an incoming?

Sep 18, 2014
Yah I used to watch the Rat Patrol too. 'Hey look - there's a machine gun nest - let's hop on our motorbikes and steer with one hand and throw grenades and shoot with the other, and assault it out in the open.'

You have no idea what you're talking about. You get your ideas from tv and movies. I bet you saw this one too:
http://youtu.be/rSao8TX-SwY

Sep 18, 2014
Looking ahead, this jetpack for soldier concept will run into difficulties quite soon. How do the user brake suddendly or change direction abruptly? Humans legs are wonderful in that respect, within speed limitations. How does the system stand up if the user need to dive into a muddy or sandy hole to avoid an incoming?

I think the main problem would be fatigue in having to run faster than we were designed to,which would not be a problem with electric bikes.Also, a ducted fan is an inefficient way to generate thrust,at least in model airplanes:
"Disadvantages

A ducted fan typically has a much smaller diameter than the propeller that would be used on a similar sized prop powered model. So, to generate the same thrust from a smaller volume of air it has to move it much faster, which is less efficient. A ducted fan model typically needs twice the power to achieve the same performance as a propeller-powered model.
From:http://radiocontr...cted_fan

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