How to Fly a Human Powered Hydrofoil the Aqua

5/19/2018 How to Fly a Human Powered Hydrofoil the Aqua

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http://www.instructables.com/id/How-to-Fly-a-Human-Powered-Hydrofoil---the-Aqua/

Food Living Outside Play Technology Workshop

How to "Fly" a Human Powered Hydrofoil - the "Aquaskipper"by TimAndersonon January 31, 2007

Table of Contents

How to "Fly" a Human Powered Hydrofoil - the "Aquaskipper" ...........................................................................

Intro: How to "Fly" a Human Powered Hydrofoil - the "Aquaskipper" ...................................................................

Step 1: Bounce Down and Up ...............................................................................................

Step 2: Hydrothopter Evolution, 1953 - the Present ...............................................................................

File Downloads .........................................................................................................

Step 3: Aquaskipper Patent .................................................................................................

File Downloads .........................................................................................................

Step 4: Pumpabike Patent ..................................................................................................

File Downloads .........................................................................................................

Step 5: Trampofoil Patent ..................................................................................................

Step 6: Flying Fish 1983 ...................................................................................................

Step 7: Wasserlaufer 1953 .................................................................................................

Step 8: Pogofoil 1989 .....................................................................................................

Related Instructables ......................................................................................................

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Comments ..............................................................................................................
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Author:TimAnderson author's websiteTim Anderson is the author of the "Heirloom Technology" column in Make Magazine. He is co-founder of www.zcorp.com, manufacturers of "3D Printeoutput devices. His detailed drawings of traditional Pacific Island sailing canoes are at http://www.mit.edu/people/robot.

Tim's philosophy involves building minimum-consumption personal infrastructure from recycled scavenged materials.Redirecting the waste stream. Doing much with little. A reverse peace-corps to learn from poor people all over the world.

Intro: How to "Fly" a Human Powered Hydrofoil - the "Aquaskipper"The "Aquaskipper" is a human powered hydrofoil made by Inventist.com.It's similar to the original Swedish Trampofoil, which is no longer available.

There's also one called the "Pumpabike" from South Africa.They're also called "hull-less watercraft" and "flapping wing propulsion vessels".You bounce up and down to make the wing f ly and propel you.If you stop you fall into the water and swim back to the dock.It's completely ridiculous and works really well once you get the hang of it.

It's hard to do at first but that seems to make it even more fun.Here's what learning looks like:

(After a few days we got a lot better)Here's Kenny teaching Caglar the starting position.

An ipod formatted copy of the AquaSkipping video can be downloaded here.

Do you like this Instructable? Digg it!

Want to build your own? Here's How!

Step 1:Bounce Down and UpFind a good place to launch. What you want is a dock a foot or so above the water.You want water at least 6.5 feet deep according to the manual.Decide which of your legs is stronger. That's your "pushing foot".Stand on the side of the dock with the ball of that foot hanging over the edge of the dock.That's so you'll be able to push off forcefully without your foot slipping.

Rest the rear crossbar of the Aquaskipper on the toes of that foot to keep it from dropping into the water.Rock forward until the Aquaskipper's front foil is level on the water and step aboard with your other foot.Lunge yourself and the aquaskipper forward, pushing with your back foot as hard as you possibly can.Then start bouncing. These two diagrams from the Inventist websiteshow what happens to the gizmo when you bounce. In the "down" part of the stroke the suspis compressed and the back foil dives. In the 'up" part of the stroke the spring straightens out, the wing swoops up in the water and you glide forward. It's not autoyou have to learn the skill.It's hard to describe the motion. It helps to watch the videos many times and have a lot of f riends around to make suggestions.

After a week or so of practice you'll be a skillful expert like the folks in the following video.It shows Aquaskippers, Trampofoils, and other humanpowered hydrofoils at the European Sprint races in 2006:
http://inventist.com/index.php?option=com_content&task=view&id=10http://www.instructables.com/id/EW28Z3LF18DW901/http://www.digg.com/other_sports/How_to_Fly_a_Human_Powered_Watercraft_the_Aquaskipperhttp://instructablestv.blip.tv/file/get/InstructablesTV-HowToFlyAHumanPoweredHydrofoilTheAquaskipper732.m4vhttp://inventist.com/index.php?option=com_content&task=view&id=10http://www.mit.edu/people/robothttp://member/TimAnderson/http://member/TimAnderson/


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Step 2:Hydrothopter Evolution, 1953 - the PresentDemographic analysis shows that you're an impoverished 15 year old dreaming of ganging up ten of these with a chinese dragon hiding your friends inside. I knowitching to go grind foils out of skis with a beltsander right now, but first take a look at what's been done before.

The rest of this instructable covers patents and additional details of human-powered Hydrothopters in order of newest to oldest.

This picture shows Alexander Sahlin riding one of his prototypes in the 90's.

File Downloads

7021232_aquaskipper.pdf(381 KB)[NOTE: When saving, if you see .tmp as the file ext, rename it to '7021232_aquaskipper.pdf']
http://www.instructables.com/files/orig/FD3/R6AQ/LGFEXCFIZ30/FD3R6AQLGFEXCFIZ30.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/F52/3VQA/0N8EXCFIZ2A/F523VQA0N8EXCFIZ2A.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/F52/3VQA/0N8EXCFIZ2A/F523VQA0N8EXCFIZ2A.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/F52/3VQA/0N8EXCFIZ2A/F523VQA0N8EXCFIZ2A.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/F52/3VQA/0N8EXCFIZ2A/F523VQA0N8EXCFIZ2A.pdf?utm_source=pdf&utm_campaign=files


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Step 3:Aquaskipper PatentThe pdf icon below will load Shane Chen's 2003 patent for the Aquaskipper.

If you're rushing off to beltsand some wooden foils for a crazy hydrofoil r ight now, be awarethe foil sections depicted in these diagrams do not resemble the sections of the actual device.

Also bear in mind that Shane's product is well made and it's cheaper to buy one than to spend lots of time building your own.

That said, here are some foil section candidates:

The Eppler E817 and "Ogive" sections are popular with Hydrofoil Society Members.NACA 63412 and H105 are used by the Moth hydrofoil dinghyand others made by the same folks.

File Downloads


Step 4:Pumpabike PatentThe pdf icon at bottom will load Michael Puzey's patent for the "Pumpabike".His websitehas a lot of good info, including owner's manual.

File Downloads
http://www.instructables.com/files/orig/F1H/NBHH/AI0EXCFJ5FQ/F1HNBHHAI0EXCFJ5FQ.pdf?utm_source=pdf&utm_campaign=fileshttp://www.pumpabike.com/Site1/http://www.instructables.com/files/orig/F8S/C2K8/76LEXCFJ38G/F8SC2K876LEXCFJ38G.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/F8S/C2K8/76LEXCFJ38G/F8SC2K876LEXCFJ38G.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/F8S/C2K8/76LEXCFJ38G/F8SC2K876LEXCFJ38G.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/F8S/C2K8/76LEXCFJ38G/F8SC2K876LEXCFJ38G.pdf?utm_source=pdf&utm_campaign=fileshttp://fastacraft.com/moulded_foils.htmlhttp://www.foils.org/sailfoil.htmhttp://www.inventist.com/index.php?option=com_content&task=view&id=10http://www.instructables.com/files/orig/FD3/R6AQ/LGFEXCFIZ30/FD3R6AQLGFEXCFIZ30.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/FD3/R6AQ/LGFEXCFIZ30/FD3R6AQLGFEXCFIZ30.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/FD3/R6AQ/LGFEXCFIZ30/FD3R6AQLGFEXCFIZ30.pdf?utm_source=pdf&utm_campaign=files


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6099369_pumpabike.pdf(399 KB)[NOTE: When saving, if you see .tmp as the file ext, rename it to '6099369_pumpabike.pdf']

Step 5:Trampofoil PatentAlexander Sahlin, inventor of the Trampofoil obtained Swedish design patent number 98-0088. Swedish Patent and Registreringsverket.

I haven't been able to find a copy, but if any of you do, please send it to me.

Alexander has gotten into some interesting new projectsand no longer sells Trampofoils.The old Trampofoil website has gone offline, but you can still find it using"Wayback Machine". That's where I got the following pictures of the Trampofoil.

His old websitehas the story of how he developed it with pix of the prototypes.
http://web.archive.org/web/19991014030834/www.trampofoil.se/prototypes.htmlhttp://www.trampofoil.com/http://www.trampofoil.com/speedsailing/index.htmlhttp://www.instructables.com/files/orig/F1H/NBHH/AI0EXCFJ5FQ/F1HNBHHAI0EXCFJ5FQ.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/F1H/NBHH/AI0EXCFJ5FQ/F1HNBHHAI0EXCFJ5FQ.pdf?utm_source=pdf&utm_campaign=fileshttp://www.instructables.com/files/orig/F1H/NBHH/AI0EXCFJ5FQ/F1HNBHHAI0EXCFJ5FQ.pdf?utm_source=pdf&utm_campaign=files


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Step 6:Flying Fish 1983The original pedal powered hull-less hydrofoil, the "Flying Fish":

The flying fish video is from Mark Drela's Decavitator website, now only available via the WaybackMachine:http://web.archive.org/web/20051218183752/lancet.mit.edu/decavitator/VideoClips.ff.html

http://members.aol.com/jfreeent/hf.htmsays:"The first hydrofoil to fly was probably the "Flying Fish"; It was essentially a bicycle with foils instead of wheels. It had no floats at first, and was launched off a pierrails. Their flight wasfirst published in 1984. If your PC can run video, the "Flying Fish"link below will show the essential components of all hydrofoil research. . .GETTING DUMPED !! Allan Abbott on the hydrofoil, and probably Alec Brooks doing the "rip cord". "

The photos are from http://www.ihpva.org/HParchive/Human Power, the Journal of the IHPVA Vol 3 no.2 winter 1984 in the lead article "The Flying Fish" written bBrooks. The captions read: "Allan Abbott flies by at about 12mph" and "The Flying Fish, weight: 39lb, max speed: 14+ mph. Note surface follower on front strut."
http://www.ihpva.org/HParchive/http://members.aol.com/jfreeent/hf.htmhttp://web.archive.org/web/20051218183752/lancet.mit.edu/decavitator/VideoClips.ff.html


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Step 7:Wasserlaufer 1953This was the first human powered hydrofoil. The name means "water strider", the waterbug that scampers on the surface of the water:

From http://www.human-powered-hydrofoils.com/history.html

:" This is the first human powered hydrofoil ever. It was invented and designed by the bavarian engineer Julius Schuck. In 1953 it was presented the first time in thgerman Tagesschau (News) and the inventor himself rode his hydrofoil on the river Isar in Munich. In the 1978 movie Gizmo by Howard Stern the Wasserlaufer hasmall part. This movie was reporting about crazy inventions of past days.The Wasserlaufer used Flapping Wing Propulsion far before anybody else even thought about this way of propulsion. Below is the link to the News Video of theWasserlaufer. C Bilder, Videos Dr.-Ing. Wolf-Dieter Schuck"
http://www.human-powered-hydrofoils.com/history.html


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Step 8:Pogofoil 1989Parker McCready, the designer, has a page describing this craftwhich has a main wing "of a carbon/epoxy composite, is about 2 m in span, uses a NACA 4415 asection".

Here's Mike Lampi'svideo of the Pogofoil in action:

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Comments

50 comments Add Comment view all 63com

dominichart88says: Jan 17, 2012. 1:37 PMThanks for the catch. Misspelling corrected. Excellence is Always Appreciated!

cameron and blakesays: Nov 18, 2012. 6:48 AMmabey you should add more support to the sides and make it more secure and more f limsy on the uper part

alfamc2says: Oct 22, 2011. 12:48 AMi want one. (=

sandraellissays: Oct 5, 2011. 4:03 PMLove it!

Sunnedaezsays: Oct 2, 2011. 7:00 AMLooks very hard to function almost like you need to be pulled by a jetski then that would be defeating the purpose of it being human powered.

petergovaeresays: Sep 29, 2011. 11:32 PMLooks like Bugs Bunny on waterskies :-)

Computothoughtsays: Jun 30, 2011. 11:10 PMI'll pass on this one...

fight4gipper1says: Apr 29, 2011. 1:28 PMIs there any way to make one of these??

sunny06says: Jun 13, 2011. 4:32 PMhttp://www.instructables.com/id/DIY-Human-Powered-Hydrofoil----The-%22Hydrothopter%22/

sunny06says: Jun 13, 2011. 4:26 PMLook at this - totally amazing:http://www.youtube.com/watch?v=voKweuNdElQ&feature=related

A.C.E.says: May 25, 2007. 4:07 AMso, if your just r iding along and slow down to much and sink will the aquaskipper sink and can you get back on i t in the water or do you have to go bacdock?

snworkssays: Jun 25, 2009. 2:17 PMI don't know why you believe that, A Good Name. It's not possible to water start - you have to get back to dock or boat to launch. I have tried havinboat tow me up, but there is not enough control while underwater to do it.The most fun is with a group of people taking turns, and you just circle around so you can step off on the dock or have a short swim. For learners wbring a line with a throwing weight on the end to haul them back in. Much less tir ing than paddling back, so more time and energy for practice.http://www.youtube.com/profile?user=snworks#play/all/uploads-all/2/nO7-tfVkoNU

A good namesays: Apr 22, 2008. 6:51 PMI believe it would be possible to get up on the water, but easier on a dock/boat.

Yerboogiemansays: Jun 6, 2009. 10:25 PMThat thing is just cool, i want to try that someday.
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JendaZZsays: Dec 4, 2008. 3:42 PMAll you guys need to do is JUMP! Just look at yourself in the video... you (mostly the guy in black) are pushing down with your arms and bobbing up andown with your body - you are not really jumping at all. You need to jump up on the balls of your feet; your heels should come off the platform with evejump. I know you can do it!

agis68says: Apr 9, 2008. 3:00 AMI dont know if iam go make it ever, but i lought very mach with the first video....good job.

WonderWheelersays: Feb 10, 2007. 4:10 PMWow! But don't try to ride it in areas with a lot of kelp or long stringey algae or floating plants! Is that duct tape patching on his knees?

TimAndersonsays: Feb 12, 2007. 2:56 AMIt's that 3M retro-reflector tape. So they can find the body quicker at night.

greggles14says: Jan 7, 2008. 12:56 PMur cool cus ur name is anderson, so is mine!

Crash2108says: Apr 27, 2007. 10:37 PMmore like 'corpse'.

parker101says: Jul 19, 2007. 12:38 PMthey look so cool but i dont have the time to make it.about how much does suplies cost???

Dovemansays: Jun 13, 2007. 6:43 PMThose Aquaskipper micbobbers are darn expensive! Almost $500?

dapaintballer331says: May 15, 2007. 2:14 PMI bought this March 2006, and you know the guy in the black dry suit? That was myself and 10 friends who t ried it. I eventually got the hang of it rnoughfar out, but turning is a lot harder than it looks. Get it if you have a LOT of time.

powersays: Apr 7, 2007. 1:21 AMI saw this in a tv programme name Beyond Tommorow.this is very nice but it might be tricky .it means this is like a sport exercise machine for me.niceinstructable

Punkguytasays: Feb 19, 2007. 6:22 PMOH wow, I guess you learn things every day. I've never seen one of these but I'd be interested to see it in person.

Wade Tarziasays: Feb 5, 2007. 9:12 AMNice! Adds new meaning to the proverb, "sink or swim," and this device could update the proverb for the 21st century. Hey, this reminds me somewhy "mud sled," for which I hope you will do an instructable someday. Would love to see the modern equivalent as well as a note on its ethnographic historHowabout a kite-powered mudsled? A wheeled, skated, pump-hydrofoiled, kite-powered mudsled might be the ultimate transport. It would at least wincontests at Burning Man. ;-)

Wade Tarziasays: Feb 6, 2007. 7:04 AM

Addendum -- I just saw the video. I haven't laughed like that in months. I salute the never-say-die man-in-black.

girlybobsays: Feb 18, 2007. 8:13 PMditto that - i was in need of a laugh and that was just stupidass enough to do it... .sticktuitiveness!!!

Fubarsays: Feb 17, 2007. 10:49 AMWow, that is very cool. Looks tiring, but cool. Seems like the trick to get started is to get the canard in the water first so it's riding level. Very cool guys. now I know you Great Lakes guys are nuts. Try this in San Diego where the water is 40deg warmer!
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leahculversays: Feb 14, 2007. 3:05 PMAwesome! Looks tricky.

leevonksays: Feb 3, 2007. 9:11 PMhow does that survival suit help keep you warm when it's so loose? It's water permiable like a normal neoprene wetsuite right? As far as I know tight fitneoprene wetsuits work because some water is trapped in the neoprene and this water is warmed by your body. having a loose fit ting wetsuite doesn'twater get warmed by the body.. Let me know where I'm off

Kitemansays: Feb 4, 2007. 7:58 AMThat looks like a dry suit - no water gets in at all. It means you can ride your foil thing somewhere and arrive with your normal clothes on, dry,

underneath.

leevonksays: Feb 8, 2007. 11:05 AMnaw, it's made of neoprene (see his wetsuite repair instructable)

Wade Tarziasays: Feb 8, 2007. 1:44 PMAll survival suits are dry-suits. The zippers are well sealed, and the 'socks' and 'gloves' are sealed on. Water can get in by the face, so the his designed to fit tightly around the face. Usually the hood can be pulled up or folded over to cover the mouth a little.

leevonksays: Feb 8, 2007. 4:58 PMthe red suit pictured is a wetsuit, dry suits are not made of neoprene, they are made of waterproof plastic.

dansays: Feb 9, 2007. 12:12 PMcontrary to "lay" opinion, neoprene itself is completely waterproof. all leakage in a wetsuit is through the sewn seams between theindividual panels of neopreneand around the edges where your arms and legs go, and through the zipper. if you visit your cold-weasurfing store, you should have no trouble purchasing a neoprene dry suit. i t just costs more because of the seals.

leevonksays: Feb 13, 2007. 4:14 PMthank you, finally an enlightening set of replies.

aphoricsays: Feb 9, 2007. 1:50 AMActually dry suits may be made of nylon, or neoprene, or other materials. Here is just one quick link for info on neoprene drysuits.http://www.adventuresdownunder.com/neoprene.htm

royalestelsays: Feb 9, 2007. 2:30 PMSorry to burst your collective bubbles, but REAL drysuits are made of thermocouple piezo-plastics. Check out this.

Kitemansays: Feb 11, 2007. 4:16 AMActually, I think you'll find the correct link is HERE.

royalestelsays: Feb 11, 2007. 2:10 PMAw, I was just adding to the comment chain . . .

Kitemansays: Feb 12, 2007. 2:27 AMMe too. It just seemed seemed...

JayKaysays: Feb 11, 2007. 8:03 PMThat is simpley not true. "Neoprene is a closed cell foam synthetic rubber, containing millions of tiny air bubbles. These form a buoyand thermally insulating material that make a neoprene drysuit safer to wear than membrane dry suits. If torn or punctured, a neoprsuit still retains the insulationand buoyancy of the air bubbles when f looded."(Wikipedia)
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12/12


kinawerasays: Feb 11, 2007. 12:10 AMIt is a regular wetsuit. You should have seen him BEFORE he lost the weight!

macrumptonsays: Feb 11, 2007. 10:36 AMThe Aquaskipper is actually pretty close to a clone of a swedish invention called a trampofoil invented about a decade ago by these guys:http://www.trampofoil.com/The aquaskipper has some improvements and costs about 1/4 as much as the original.If someone could make these water launchable they would really take off in popularity.A small electric motor and prop could also extend the range a lot. How about piezo electric material in the wing so it generates some of the power for t

motor from the flexing of the wing.

Tamaresquesays: Feb 9, 2007. 10:48 PMWould it work better if there was more surface on the blades i.e. making them wider?

fretthefredsays: Feb 11, 2007. 10:20 AMthere would more lift but a lot of drag though

WonderWheelersays: Feb 10, 2007. 4:06 PMI remember seeing an old newsreel f ilm about something like this. I was gussing it was even earlier, maybe made in the 1930's and all wood, but mabewas this one and I was mistaken.

Mbritosays: Feb 10, 2007. 5:48 AMGood exercise! Good for the planet! Fat Americans need to ride these instead of Waverunners! Ha!

Mbritosays: Feb 10, 2007. 5:40 AMWOW!

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How to Fly a Human Powered Hydrofoil the Aqua

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