gmane.culture.transportation.humanpowered.boats

re YouTube Clip

Rick Willoughby — 2012-04-23T10:41:46

Ian
The link line-wrapped in the email.  I did not check it after it posted.

Matt Johnson has quite a few on his V15-65 and his sailing/pedal cat  
here:
http://www.youtube.com/user/svtolfea

This one shows the stability while boarding from dock:
http://www.youtube.com/watch?v=CGA49SxWXTM

Rick Willoughby
rickwill-bzGI/hKkdgQnC9Muvcwxkw< at >public.gmane.org

You Tube Clips

Ian Cassell — 2012-04-23T10:11:21

Rick 
       The link for my YouTube didn't work,
try this one.
http://www.youtube.com/watch?v=L8BaIr44zPg
Otherwise type in the search  V15-I_calm_Water.

As we are all seperated by distance or continents
this could be a good way of getting a look at
everyones boats, post a clip of their boat in or
out of the water.

Ian

Mike Lampi YouTube Clips

Rick Willoughby — 2012-04-23T06:13:45

Mike Lampi has started posting some of his race clips to YouTube.

There are 4 clips for the Jetty Island race he did this month.

First shows him moving from dock:
http://www.youtube.com/watch?v=1dlCe2m_Bp0&feature=youtube_gdata

Next shows some warm up near the start:
http://www.youtube.com/watch?v=3uGCtH5TNo0&feature=youtube_gdata

Then the start - he is on the nearside of the course taking photos:
http://www.youtube.com/watch?v=td5FOAUuk_E&feature=youtube_gdata

Then the finish - he comes in just before the 8 minute mark but  
camera has trouble focusing:
http://www.youtube.com/watch?v=rMEZFycXD4Y&feature=youtube_gdata

Ian Cassell has also started to post to YouTube:
http://www.youtube.com/watch? 
v=L8BaIr44zPg&feature=BFa&list=PLB6E11AD7AFB612CB


Rick Willoughby
rickwill-bzGI/hKkdgQnC9Muvcwxkw< at >public.gmane.org

Re: I need advice on selling my Yamaha Lakerunner

v garza — 2012-04-12T03:40:16

Steve:

You know what you paid, but I would expect a huge bid - ask range on an item 
like this because of such a small following in the USA. Perhaps consignment 
at a shop that sells Hobie & other pedal types, or take to sell at a kinetic 
sculpture race in your state, Ventura or Eureka?

Vic
----- Original Message ----- 
From: "Steve Smilanick" <steve-3uII42+V2VCinq9/c0SGkQ< at >public.gmane.org>
To: <hpv-boats-F6ZgP9DZj10< at >public.gmane.org>
Sent: Wednesday, April 11, 2012 3:46 PM
Subject: [hpv-boats] I need advice on selling my Yamaha Lakerunner

I need advice on selling my Yamaha Lakerunner

Steve Smilanick — 2012-04-11T20:46:37

Hi All

I have given up on pedaling in the recumbent position, bikes and boats, 
due to lower back pain which gets worse every time I try.

As a result, I plan to sell my Yamaha Lakerunner.

Does anyone have an idea what a Lakerunner, in good condition, is worth 
and also, where is a good place to advertise it?

I put it on craigslist but I suspect the audience may be too small to 
attract the right buyer.

Thank you in advance form a long time lurker.

Take care

Ian's V15-I

Rick Willoughby — 2012-03-31T21:56:04

I went out with Ian C yesterday to do some filming of his new boat at  
launch.  It was windy with average of 25kts and gusts to 35kts so  
filming from my boat was bouncy.  The results are posted on Youtube:

http://www.youtube.com/watch?v=_nuBoCU8Ckc
http://www.youtube.com/watch?v=74IzB1SMwxc

Ian made some slight changes to the design and is using the in-line  
shaft arrangement with his 1:3.3 Involute made box with curved shaft  
all used on previous boat. The boat performed well and he was pleased  
with the way the wave piercing foredeck worked.


Rick Willoughby
rickwill-bzGI/hKkdgQnC9Muvcwxkw< at >public.gmane.org

Re: Matts Boat

Rick Willoughby — 2012-03-22T12:38:21

Ian
He pushed up over 13kph easily but said he realised he has some  
conditioning to work on by the time he got to the other side of the  
lake.  The design speed is 4m/s or 14.4kph.  He should get to that  
with 270W .  When he was bike racing he was working in the high  
300s.  No doubt it will be interesting to follow progress.

I suggested he nurse the blades by staying below 16kph until he had  
worked out what needed changing or setting up better.  I forget to  
tell him not to accelerate hard.  Blades broke the second time he  
took off to do a pass for the camera.  I have tested the new blades  
to static load of 120N, which is 50% higher than I was prepared to  
take the first set.  New layup should be able to take my full power  
so will do some flat out sprints with my next set.

Matt will fabricate a set of stainless blades while he is waiting for  
my improved CF set.  It would be a shame if the blade strength  
limited his acceleration.

Rick Willoughby
rickwill-bzGI/hKkdgQnC9Muvcwxkw< at >public.g

Matts Boat

Ian Cassell — 2012-03-22T11:00:56

That boat of Matt's really flys, he really
accelerated away fast. Wonder what
speed he got up to. When he has used
it a few times he should be ready to set
a few records. The rudder caused a bit
of turbulence but that is a minor problem.
Hope his boat can stand up to the power
he can put into it.

Ian

Matt Johnson First Test of his V15-65

Rick Willoughby — 2012-03-22T04:03:17

Matt Johnson contacted me in August 2011 regarding a pedal boat  
design suited to his weight and power output.  He finally got it on  
the water today and posted this video:
http://youtu.be/IL5GBgJbS_4
Matt is the most powerful engine I have done a design for to date so  
it will be interesting to follow progress.  He is aiming to join Mike  
Lampi in the Sound Rowers races when his time permits.

The resulting hull design is based on my V15 series but optimised for  
110kg displacement and 300W power.  Hull ended up 6.5m long.  Matt  
chose skin on frame as his method of construction along with a  
separate tubular frame and commercial recumbent seat that mounts to  
the basic boat.  The drive is configured with side-mounted curved  
shaft spinning at 7X cadence.

I provided a hub for folding prop and the second set of moulded CF  
blades for testing.

The test was impressive but brief because the folding CF blades  
snapped when he accelerated for the second run.

Rick Willoughby
rickwill-bzGI/hKkdgQnC9Mu

Re: Pedal Wa'a

stephane rousson — 2012-03-17T07:50:01

Hello  Clive,

great job

here is our project :

www.funfoil.org

we start our tries, a few modification coming to make it fly !

have a look on our other project :
www.scubster.org ( pedal powered submarine)
www.rousson.org ( pedal powered airship )

have fun





Le 17 mars 2012 à 02:51, Rick Willoughby a écrit :


Stephane Rousson
Tel : 00 33 (0)6 03 83 82 76
www.rousson.org
www.scubster.org
www.seaglider.fr

Re: Proa offer, was hpv-boats Digest, Vol 76, Issue 4

Bob Stuart — 2012-03-19T15:12:23

After years of messing about in pedal kayaks, I decided that what I  
really wanted was a much narrower main hull with one outrigger.  That  
gave less wetted area, and having the drive leg beside the main hull  
made it easy to swing up for beaching or weed removal, etc.  while  
also keeping the drag and thrust lines close together.  The ama gave  
the option of carrying a passenger without ruining the trim, camping  
on the tramp, or sailing, with water ballast on one tack.  The open  
cockpit is self-bailing except for the footwell, which can have a  
speed bailer.  I have the hulls for this built, 20' and 12' long, and  
most of the hardware for a SpinFin with S cranks on one side, but  
have no time to finish it now.  Interested?

Bob Stuart

On 19-Mar-12, at 8:58 AM, dennis Barrett wrote:

Re: hpv-boats Digest, Vol 76, Issue 4

dennis Barrett — 2012-03-19T14:58:55

Tom,
sorry, here's that link
http://youtu.be/Rdph3VOyPbU

Rick,
thanks for that info!
I'm a bit confused about the Harry Howard's Pedalos, his test mule,
and then the catamaran that went from NY to Brazil (I think).  And why
his record braking boat hasn't been offered to the general public but
the plastic boat is.

The pedalwaa has an interesting drive for the prop, but I'm not sure
if that method is for me.   I still like what you got going on the
best so far, at least for my boat's design.

And not to get too far off topic, but I've also been looking more into
the proas and what you said in your emails.  Richard Woods suggested
using a kayak for the outrigger hull which is very interesting so now
I'm trying to come up with a way of adapting a pedal prop drive to the
proa.  Main hull or outrigger/kayak hull?

Yeah, I know, I got two different boat designs going on at the same
time now.  I like how both are going, and yeah both are different and
so I see myself pretty busy with both of them!

for those just

Re: Huki surfski pedal boat

Rick Willoughby — 2012-03-17T21:07:48

Dennis
The last few seconds of the video has some detail on the boat - it is  
an OC1 with two outriggers rather than 1.  This has the advantage  
that the boat is balanced so the outriggers can be unloaded and just  
surface skim.  A normal OC1 will give away about 3 minutes in an hour  
compared with this configuration.

OC1 hulls are a little narrower than surfski because they do not need  
inherent stability in the one hull.  However a normal OC1 is slower  
than a surfski due to greater windage and the extra drag from the  
loaded outrigger.

Clive has now fitted a Bolly boat prop. The original  was a lower  
pitch model aircraft prop.

There are photos of the original set up here:
http://www.humanpoweredboats.com/Photos/Individuals/PedalWaa/ 
PedalWaa.htm

Until recently I thought the Pedal Wa'a and Harry Howard's Pedalos  
were the same boat but Clive explains that the drive was supplied by  
Harry Howard.  On inspection the cockpit of Pedalos is quite different:
https://www.hydrocycles.com/pedalos.ph

(no subject)

Tom Christie — 2012-03-17T17:09:14

I can't see what boat you are referring to Dennis.

-Tom

Huki surfski pedal boat

dennis Barrett — 2012-03-17T16:40:20

I was wondering what ever happened with this boat.  I saw pics of it
quite awhile back and thought that it would make for a pretty quick
boat as it was using a surf ski hull.  It looks like it was moving
right along in the video.

Pedal Wa'a

Rick Willoughby — 2012-03-17T01:51:40

Clive Armitage has recently posted a video of his boat on operation.   
Can be viewed here:

http://www.youtube.com/watch?v=Rdph3VOyPbU


Rick Willoughby
rickwill-bzGI/hKkdgQnC9Muvcwxkw< at >public.gmane.org

Re: re CF Blades

Rick Willoughby — 2012-03-08T20:40:09

Rick:


Great looking prop, thanks for posting.

Have you reached perfection with this prop, so it can be used with your
other boats as well? Or is a dedicated prop for your racing machine?  
If you
can go to mass production, perhaps others would be interested in a
purchase....

Thanks,


Vic
This prop is close to optimum for the side-mounted configuration on  
the V15 boat or any similar easily driven boat.   It suits a gear  
ratio around 7X .  It could be used on slightly heavier boats as well.

I have already supplied a prop to another boat and prepared to make  
them for sale if they suit the application subject to them  
demonstrating the required durability.


Rick Willoughby
rickwill-bzGI/hKkdgQnC9Muvcwxkw< at >public.gmane.org

Re: re CF Blades

v garza — 2012-03-08T18:05:09

Rick:

Great looking prop, thanks for posting.

Have you reached perfection with this prop, so it can be used with your 
other boats as well? Or is a dedicated prop for your racing machine? If you 
can go to mass production, perhaps others would be interested in a 
purchase....

Thanks,

Vic
----- Original Message ----- 
From: "Rick Willoughby" <RICKWILL-bzGI/hKkdgQnC9Muvcwxkw< at >public.gmane.org>
To: "HPV" <hpv-boats-F6ZgP9DZj10< at >public.gmane.org>
Sent: Thursday, March 08, 2012 2:34 AM
Subject: [hpv-boats] re CF Blades

re CF Blades

Rick Willoughby — 2012-03-08T08:34:35

Rick
        How much of a weight difference is there
between the CF blades and steel ones?
Do you provide a slot in the hub for the shaft
or do you leave it blank. Being a nylon hub
it wouldn't be hard to drill.

Ian

Ian
The normal stainless blades weigh 70g.  Remember this is quite a  
small prop.  The CF blades currently have an aluminium core and weigh  
20g.  The core is needed for twist strength as I am only using  
unidirectional fibre lengthwise on the blade to resist bending.

The next ones I mould will have a stainless steel strip for the  
core.   This will add a bit of weight and should help deployment as  
well as stiffness against twisting.

There is much less effort in making these blades compared with  
grinding stainless steel.

I was surprised how easy it is to get a perfect blade from the  
mould.  The mould cost a bit but it is well made and virtually  
guarantees a good result.  The mould maker had not used CF for  
reinforcing before so it was an experiment for him as well.  He has  
m

CF blades

Ian Cassell — 2012-03-08T07:55:04

Rick
       How much of a weight difference is there
between the CF blades and steel ones?
Do you provide a slot in the hub for the shaft
or do you leave it blank. Being a nylon hub
it wouldn't be hard to drill.

Ian

Carbon Fibre Blades for Folding Propeller

Rick Willoughby — 2012-03-08T04:51:46

I now have a mould for making CF folding blades:
http://www.rickwill.bigpondhosting.com/CF_Prop_Blades.jpg

The resulting propeller has a diameter of 330mm and weighs 160g.  I  
have tested the blades to 16kph, which corresponds to 65N thrust.   
This is more than twice the thrust needed to achieve 12kph, which is  
the sustainable speed for a pilot in good shape.
http://www.youtube.com/watch?v=ONk3fUnHamI

The pitch was close to what I calculated below 12kph but it is  
possible there is some blade flexing due to loading because the pitch  
was apparently reducing as I increased speed.  Usually the speed to  
cadence increases as speed increases due to reduced slip.

The prop is suited to a gear ratio of between 6 to 8 depending on the  
boat and pilot although the boat needs to be easily driven.  I was  
running at 7X.

I could get 5kph in reverse spinning flat out.

The blades do not deploy as quickly as heavier blades.  I plan to use  
a stainless steel core to add some more weight and possibly reduce