[hpv-boats] human powered yacht?

[Mark Vermilion]

Vic,

Yes, it is the APC 12x12E that I am using. However, I am not a  
performance pedaler, so it works just fine.

Mark


On Aug 22, 2010, at 10:22 AM, v garza wrote:

> Mark, are you using a carbon fiber 12x12E or fiberglass? What brand?
> If the E stands for electric, the fiberglass ones, even with a thick  
> hub have deflection and breakage issues for the APC brand at 50  
> watts in my gadgets.
> Thanks,
>
> Vic
> ----- Original Message ----- From: "Mark Vermilion" <marcopoloboats at aol.com 
> >
> To: "Human Powered Vehicles -- Boats" <hpv-boats at bikelist.org>
> Sent: Sunday, August 22, 2010 6:51 AM
> Subject: Re: [hpv-boats] human powered yacht?
>
>
>> Sam,
>>
>> I do not know if what we have will work on such a large boat, but   
>> check out our PlanetDrive and MitrpakDrive on www.marcopoloboats.com.
>>
>> The PlanetDrive is a gear increaser. Depending on the model, you  
>> can  have increase ratios of 1:5, 1:7, 1:25, and 1:49. They are  
>> still in  the prototype stage, but we could make one available to  
>> you if you are interested.
>>
>> The MPB MitrpakDrive is a customized-for-pedaling Mitrpak right  
>> angle gear box at a 1:2 ratio, like the one Rick Willoughby has  
>> started to  use. We will start selling these in a few weeks as soon  
>> as Mitrpak  completes our order.
>>
>> I am using a 12x12E model airplane prop (about $7) with the   
>> PlanetDrive and Mitrpak on a 12' catamaran, and it works great.
>>
>> Also coming within three months is a flexible cable shaft, which  
>> may  be useful to you if you need to snake a shaft around objects,
>>
>>
>> Thank  you,
>>
>> Mark A. Vermilion
>>
>> Marco Polo Boats, Inc.
>> Exploring the past and future of small boat design
>> 1911 Smallbrook Drive
>> Troy, Michigan 48085
>> USA
>>
>> Tel & Fax   1-248-434-4187
>>
>>
>>
>> On Aug 22, 2010, at 7:15 AM, Sam UK wrote:
>>
>>> Hi All
>>>
>>> I have a 22 ft kingfisher yacht http://www.kyoa.org.uk/k20+technical.htm 
>>>  I
>>> am interested in powering it partly through human power when I am   
>>> on inland
>>> canals etc.
>>>
>>> I will also have a conventional outboard for when I get tired!
>>>
>>> I plan to make a Yuloh http://simplicityboats.com/yulohpage2.html   
>>> which I
>>> would hope to be able to use for about 2 hours a day. eg
>>> http://www.youtube.com/watch?v=u7MQsdLpWaM
>>>
>>> In addition seems to make sense to use your more powerful  leg   
>>> muscles to
>>> power the thing. I realize that the boat will not move fast, and   
>>> that it
>>> will be hard work.
>>>
>>> The boat has an outboard well inside the boat and I am hoping to  
>>> be  able to
>>> make use of that to install a pedal system.
>>>
>>> 1) Has anyone ever fitted a mirage drive to a boat this big? With  
>>> what
>>> results?
>>>
>>> 2) I am aware of the escargot
>>> http://www.mission-base.com/pedal-power/pp_escargot_photos.html  
>>> are there
>>> any other large pedal powered boats out there?
>>>
>>> 3) I have had a browse on these archives, and have seen people   
>>> making props
>>> out of model aeroplane propellers, would the prop need to be  
>>> longer  for such
>>> a heavy boat?
>>>
>>> 4) I am thinking of aiming for this kind of set up
>>> http://www.openwaterbike.com/components/drive-units/mark-drela-drive-system 
>>>  I
>>> thought I might start with this cheap gearbox
>>> http://www.maplin.co.uk/Module.aspx?ModuleNo=43541&C=Froogle&U=43541&T=Module
>>> and
>>> upgrade it later if the boat actually moves under pedal power.
>>>
>>> Any comments or suggestions?
>>>
>>> Thanks
>>>
>>> Sam
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>>
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