[hpv-boats] human powered yacht?

[v garza]

Mark, I did find the APC electric props to be more efficient than the 
standard. They seem to have a wider section closer in, so that might be the 
reason. APC also makes a wide version of their standard prop in 12X10W which 
is quite robust and slightly more efficient than the standard 12X10, and 
there may be other "W" to explore depending on your gearing and what your 
goals are. I also found the wooden zinger 10X6XW (extra wide) to be at least 
if not better than the comparable APCs. They are also much lighter, even 
after a coating of epoxy to add strength and keep out moisture.

Hope this is of help.

Vic
----- Original Message ----- 
From: "Mark Vermilion" <marcopoloboats at aol.com>
To: "Human Powered Vehicles -- Boats" <hpv-boats at bikelist.org>
Sent: Tuesday, August 24, 2010 7:54 AM
Subject: Re: [hpv-boats] human powered yacht?


> 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
>>>> --
>>>> This message comes to you via the hpv-boats at bikelist.org mailing 
>>>> list, sponsored by http://www,HuPI.org/
>>>> Visit http://bikelist.org/mailman/listinfo/hpv-boats to manage  your 
>>>> subscription.
>>>
>>> --
>>> This message comes to you via the hpv-boats at bikelist.org mailing  list, 
>>> sponsored by http://www,HuPI.org/
>>> Visit http://bikelist.org/mailman/listinfo/hpv-boats to manage your 
>>> subscription.
>>
>>
>> -- 
>> I am using the free version of SPAMfighter.
>> We are a community of 7 million users fighting spam.
>> SPAMfighter has removed 810 of my spam emails to date.
>> Get the free SPAMfighter here: http://www.spamfighter.com/len
>>
>> The Professional version does not have this message
>>
>>
>> --
>> This message comes to you via the hpv-boats at bikelist.org mailing  list, 
>> sponsored by http://www,HuPI.org/
>> Visit http://bikelist.org/mailman/listinfo/hpv-boats to manage your 
>> subscription.
>
> --
> This message comes to you via the hpv-boats at bikelist.org mailing list, 
> sponsored by http://www,HuPI.org/
> Visit http://bikelist.org/mailman/listinfo/hpv-boats to manage your 
> subscription. 


-- 
I am using the free version of SPAMfighter.
We are a community of 7 million users fighting spam.
SPAMfighter has removed 817 of my spam emails to date.
Get the free SPAMfighter here: http://www.spamfighter.com/len

The Professional version does not have this message