how about a combo PWC & motorcycle?

another standard PWC based amphib would be twin rear swing-arms/wheels

on either side of the waterjet. I figure adding wheels would be lot easier than reworking the entire waterjet thing two dual jets.

Having twin rear wheels/swing-arms would also solve the balance/training wheels problem, especially when exiting water and trying to get going up a ramp as a two wheeler. Just have the spring loading equal for both arms, so you could still lean around corners a little with body weight, but the craft would self level.

The differential gear would be in the shaft driving the drive belts, rather than the rear axles like a Quad or ATV.

Maybe twin front forks/wheels too! Just as in my earlier pic post. Then the wheel wells wont be right on the center planing patch and wont be a factor once the PWC hull gets even half way out of the water.

Sort of like the Quad/PWC seen on youtube, but PWC based instead of Quad based, and with the wheels retracting up instead of tipping sideways, and skinnier road wheels/tires instead of ATV fatties.

 

Squidly-Diddly

90,000 PortaBotes have been sold so far. I don't have any idea of the numbers of 8 foot, 10 foot, 12 foot & 14 foot inflatables that have been sold since the year when PortaBotes were first launched, but in that specialised marketplace, 90,000 inflatables weren't sold, so the folding boat has merited its sales. Team one up with a Torqeedo 1003 and going ashore should be a doddle. Stick the tiller & battery in a back pack and chain the rest of the motor to the folded boat against railings.

http://www.torqeedo.com/fileadmin/user_upload/relaunch/Presse - PBO Gear Test .pdf

http://www.torqeedo.com/en/sn/pictures-videos/videos/travel-503-1003.html

http://www.cruisersforum.com/forums/f117/electric-dinghy-outboard-torqeedo-1003-a-46483.html

 

Those torqeedo motors are becoming popular. When my present 8hp yamaha gives up I will definatley go torqeedo. No more dangerous gasoline stored,,,Ahhhhhh

 

on a boat i dont like bicycles, bikes or PWC, a dinghy a necessaty, not a bike carrier but ya everything is possible and there is wisdom in the KISS principle

yet a fast PWC hybrid motorbike i belive is feasable, many other configurations too for that matter. what i envision now needs some special streamlined floatation tank to get up out of the water from zero when launching it from a boat, perhaps really something as simple as a PWC on wheels

have to read that yamaha 2 wheel drive system and more back couse dont like that Rokon front wheel drive chain but as said driving it fast into the water with say 40mph i belive with the rite tires it allready might do the trick

i'll check back tomorrow and promise some drawings next week (we got a sunny week! )

 

geez these half pirated rough and dirty drawings still take time, hardly dear showing this one, and dont comment on the crooked lic plate plz
but.. thats about the idea yes? motorcycle & PWC and dont we like that yamaha hydrolic 2 wheel drive better than a front wheel chain
what else was i gonna say.. anyway, planning to do this drawing a little bit better so speak now, than enetr it with squidly in named competion

o yaeh, al depends ofcourse on a lot of things, one thing i'm very curious about is how it would ride on the water? like a dirt or speedway bike? :?:

 

That looks good, I might suggest you use a front fender over the wheel that could rotate in front of the wheel and then below it in the water, that might aid the bow area design. A simple lever would do, like lowering the deck on your riding mower.

 

yes, that is more or less "it", and a pretty cool looking craft at that!

I've imagined what a 3-wheeler or 4 wheeler might look like and it just wouldn't be the Chick Magnet of a PWC/motorcycle hybrid.

Mighty fat front tire, but that would be needed on anything but a concrete launch ramp.

Electric front hub is a possibility, and I think the front wheel drive would ONLY come into play during water-to-land on unpaved surfaces. Could maybe use a engine starter motor, because that is about the torque and duration I see the FWD being used.

Even then I think it would be optional.


As far as hydrodynamics of Front Wheel on the water, have a circular rotate-with-steering disk as I mentioned before, and retract the front tire into the slot just enough so the rear most part of the exposed front tire is horizontal or slightly angled with the bow rake.

Also allow for wheels to be lowered just enough for body to clear ground, then lower all the way "on the fly", so speed could be maintained on approach to land, and thus avoid bogging in mud, sand or losing balance on steep ramp....plus looking cooler. One thing I've notice about other Amphibs is the all but stop on the transitions.

For wheels/tires maybe the Big Ruckus in my first post or the Yamaha Zuma(more off road), or any of the smaller front wheels found on "street fighter" "dual sport" bikes.

 

thanks for the reply's and tricks guy's, thats apprieciated, however.. there is some misunderstanding, that frontfender rotating down would be a smart idea if it was a PWC, but it isnt, its riding on water. the hydrolic driven front wheel, read a page back the 2 wheel drive yamaha story, drives the craft on land but also in the water. starting from half submerged drifting in the water you need that cupped front wheel drive to climb out of and in top of the water -not shown yet- we need a 2 wheel drive motorbike for this trick or else the frontwheel is all drag and dont think trying to ride on watre with a rear wheel driven bike will be possible? and you guy's are thinking retractable, this isnt. dont like it but this combi probably has to be big too and needs to be tailored in the middle to have your feet aground remaining boyancy, stability and much more to be calculated but think this one is feasable -if yamaha or another giant steps in to test, it could be a new combo trillseeker, could be disapointing as well- sure styling has to done becouse this rough sketch above dont look like its a new gadget. anyone checked where and when to post the combo in some sort of competion, ah well, the weather is turning and i'll do a bit better sketch and story

pics from http://www.boatdesign.net/forums/boat-design/modern-paddlewheels-2637-4.html#post49554 wich thread also shows the concept isnt all that easely concieved

 

PWC & motorcycle combi idea above, reading back i see this bit different concept but almost as KISS as my inflatable monohull rubber dinghy

 

I'm surprised no one has mentioned the Argo yet, which is one of the more popular amphibious recreational vehicles out there www.argoatv.com - it's a little slow at 20mph on land and 2mph in the water, but you can always add a small outboard on the back of them.

Find out what it would take to make the Argo street-legal (turn signals, smog motor, etc.) and replace the tires with a smoother, narrower design of larger diameter for better on-road manners (remove center axle to make 4x4 instead of 6x6).

Optional: Then outfit (adapt) balloon paddle-tread small-diameter tires outboard of the street tires for amphibious propulsion (if you don't want the little kicker outboard option, which would be way more practical and faster).

 

cant do 3d fast and look at a dinner burned
anyway, have a look at what i did that time..
if it is anyway good enough and tells the story
plz post it to the contest in our name squidly
bon apetit, darned computers, they eat time

 

U.S. Patent application 2997012 is for a power catamaran driven by a motorcycle wheel on a roller. The bike can roll on the boat and fit in slots driving the prop and the front runs the rudder......so there that is.....

Keep it up on the PWC bike

 

yip, how about a horizontal 'fender' surface at the

rear of the front tire just above ground level, to defect water blast downward and thus create lift?

I'd like to see a 'isolation' video of what happens from stopped-in-the-water when a tire starts spinning.

I get how a tire stays on top of the water when it hits the water at speed from a ramp, but I bet it takes a while to get up on a plane from topped-in-the-water.

 

If I may be so bold; It seems that this exercise is a bit difficult to get a solid idea going. As I recall, the O/P was after something simple and lightweight, but without the option of leaving it at a dock or beach. Might something with floats, and a water wheel driven by the rear wheel and steered by the front wheel, but able to fold up and trailer behind the bike be able to fulfill the requirements?

Roger

 

much is possible, a bike trailer that forexample blows up into a catamaran, its simple and you dont need yamaha or so to realise that
that wont be a combo PWC & motorcycle as squidly started the tread with however

Squid: on that "fender" you'r rite but have to consider the bowflow on body as well, drew small wings on frontaxle but hey, has to been seen what it takes, maybe bit fwd raked small low body right behind the wheel may be better, do belive it will climb out of the water fwd's quikly, maybe frontwheel needs side tank bows too not to fall when cornering, i dont know, there are planty things to fiddle out before it would work fine and i dont think it make much sense to come up now with a flashy looking presentation render yet, maybe later, we'll see. what i am really, really curious about is how would it ride! almost no drag and can only imagine the differences between a PWC, some idea on 2 wheel drive roadholding in the motorcyclenews article tho. someone will do it or maybe with 2 wheels on water is allready done? how is it?

brushed the animation a little up and mailed it to www.motorcyclenews.com that featured the yamaha 2 wheel drive article some time back with a link to this thread
i know i'm not the designer you want squidly, go to much my own way eh, but if you feel like sending this "RIDING ON WATER" ani to named competion go ahead, when you stop the ani when the bike goes in the water you can see YIP SQUID as licence plate ;-)