Hi,
I'm new to the list today and a hydrofoil wasn't my interest in
joining but here are some other attempts that may prove relevent to a
foil python.
http://www.youtube.com/watch?v=96J_R7lcCvw&NR=1
<http://www.youtube.com/watch?v=96J_R7lcCvw&NR=1>
http://www.youtube.com/watch?v=PBHCExUvqgQ&feature=related
<http://www.youtube.com/watch?v=PBHCExUvqgQ&feature=related>
*From:* Gerald <bepb@xxxxxx>
*To:* python@xxxxxxxxxxxxx
*Sent:* Saturday, August 6, 2011 6:13 AM
*Subject:* [python] Re: AW: Re: Python waterbike? / Hydro Foil Python.
Hi,
but it seems possible to power a hydofoil just with human power, just
as an expample, an hydrofoil kajak:
http://www.youtube.com/watch?v=S5Nb3iGdTEM.
If we assume that the power output of the legs is more than you could
do just with the upper torso and arms, powering a hydrofoil by
pedaling should be possible.
Now the feat would be to have a python that is good in both, running
on land with wheels and running on water with hydrofoils.
Up to know I have given this concept just a cursory glance.
But I think that, If one would want to go forward with the idea, the
following points should be considered:
*In practice only the hydrofoils will not be enough to go on water.
You will need buoyancy to keep you above water if you stop pedaling. I
would assume about 130 liters of buoyancy at a minimum.
*You need a proposition system more efficient than just the front
wheel wheeling through the water.
*You need to consider stability, both in motion and in standstill. You
will have to balance the bike on water because you wont be able to
support it with you hand.
*The compromises required for buoyancy and proposition bear great risk
of making the bike both, poor on land and poor on water.
Since the next suitable lake is some 40 km form where I live, and
considering that going around it with the normal python is most
probable still a lot faster than going through with some kind of water
bike, I think my python will stay land bound for know :-).
Gerald
On 5.8.11 17:08 , pybuen@xxxxxxxxx <mailto:pybuen@xxxxxxxxx> wrote:
> Hi Vi,
>
> The Hydrofoil motorbike already exists:
>
>
http://www.youtube.com/watch?v=wObflyTPLvM&playnext=1&list=PL729F9C5AE2D4C44E
<http://www.youtube.com/watch?v=wObflyTPLvM&playnext=1&list=PL729F9C5AE2D4C44E>
>
> It seems to be using the same balancing principle as a bike to turn
- another confirmation that gyroscopic effects are unimportant...
>
> You'd have to go pretty fast (or burn many calories) to make a
waterpython version of this indeed... I look forward to it ;)
>
> Pascal
>
>
> On Fri, 5 Aug 2011, Gerald wrote:
>
>> Hi Vi,
>> nice picture, may be possible with the python too. The question is,
if weight so high above the driver would not make the python unrideable.
>>
>> But maybe it is possible to put hydro foils on the python. One pair
right and left off the front wheel, an other pair left and right off
the rear wheel.
>> Maybe the foils could be made to fold away for land usage.
>>
>> But wait - if you can't put enough power to the bike or stop
peadaling you will sink fast - very fast.
>> Getting startet will be difficult too.
>>
>> Gerald
>>
>>
>>
>> -----Ursprüngliche Nachricht-----
>> Von: Vi Vuong <vi_vuong@xxxxxxxxx <mailto:vi_vuong@xxxxxxxxx>>
>> An: "python@xxxxxxxxxxxxx <mailto:python@xxxxxxxxxxxxx>"
<python@xxxxxxxxxxxxx <mailto:python@xxxxxxxxxxxxx>>
>> Gesendet: Fr., 05. Aug 2011, 05:39:01 GMT+00:00
>> Betreff: [python] Re: Python waterbike?
>>
>>
>>
>> How about having the bike carries the board overhead on land, and
vice versa on water? Need friction rollers to transfer power to
water, must rotate with wheel to steer
http://media.photobucket.com/image/surfbike/quiveyman/bikeshots008.jpg
>>
>>
>>
>>> ________________________________
>>> From: Steffen <big.skangster@xxxxxxxxxxxxxx
<mailto:big.skangster@xxxxxxxxxxxxxx>>
>>> To: python@xxxxxxxxxxxxx <mailto:python@xxxxxxxxxxxxx>
>>> Sent: Friday, July 29, 2011 1:08 AM
>>> Subject: [python] Re: Python waterbike?
>>>
>>>
>>> I saw years ago on a fair the lifesize-modell of a students work
which used a flevo as the skelett for a folding kayak. I had the
websides but the project stagnated. The modeel was only foam but the
ideas he had where great. He swing the suspension part to the front to
make it longer and wanted to swing both crank levers to the front
where he attached the lines for the steering. The not so nice part was
that it was made to use paddles and driven with the legs. The hull was
a a big package on the bicycle rack.
>>>
>>> Chears,
>>> Steffen
>>>
>>>
>>> Am 28.07.2011 22:11, schrieb Vi Vuong: Some help already
>>>> http://gizmodo.com/5825618/a-canoe-that-can-fit-inside-a-backpack
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>> ________________________________
>>>>> From: Vi Vuong <vi_vuong@xxxxxxxxx <mailto:vi_vuong@xxxxxxxxx>>
>>>>> To: "python@xxxxxxxxxxxxx <mailto:python@xxxxxxxxxxxxx>"
<python@xxxxxxxxxxxxx <mailto:python@xxxxxxxxxxxxx>>
>>>>> Sent: Wednesday, July 27, 2011 9:27 AM
>>>>> Subject: [python] Re: Python waterbike?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> SF bay is too big to cover with an amphibious recumbent, but it
would be really nice for a smaller lake not so far away. For now, I
am thinking of something compact & modular that can be transported
inside a small car. However, it all depends on what I can recycle -
surf board, kayak, fins, propeller, etc ... so it will take a while to
collect.
>>>>>
>>>>>
>>>>> Vi
>>>>>
>>>>>
>>>>>
>>>>>> ________________________________
>>>>>> From: Jürgen Mages <jmages@xxxxxx <mailto:jmages@xxxxxx>>
>>>>>> To: python@xxxxxxxxxxxxx <mailto:python@xxxxxxxxxxxxx>
>>>>>> Sent: Wednesday, July 27, 2011 12:41 AM
>>>>>> Subject: [python] Re: Python waterbike?
>>>>>>
>>>>>> I once thought of building an amphibuous
>> python - But I reckon you'll be the first to
>> realise this ...
>>>>>>
>>>>>> Jürgen.
>>>>>>
>>>>>> On 26.07.2011 23:48, Vi Vuong wrote:
>>>>>>> Has anyone wondered about a python for
>> water/fishing?
>>>>>>>
>>>>>>>
>>>>>>> S1waterbike hands-free steering
>>>>>>> http://www.youtube.com/watch?v=mF5TN9hlT1M
>>>>>>
>>>>>> ============================================================
>>>>>>
>>>>>> This is the Python Mailinglist
>>>>>>
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>>>>>> Listmaster: Jürgen Mages jmages@xxxxxx <mailto:jmages@xxxxxx>
>>>>>>
>>>>>> To unsubscribe send an empty mail to
python-request@xxxxxxxxxxxxx <mailto:python-request@xxxxxxxxxxxxx>
>>>>>> with 'unsubscribe' in the subject field.
>>>>>>
>>>>>> ============================================================
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>
>>>
>>>
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