landyacht design competition number 4, with prizes

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> 10 years ago

General Sail making Construction Blokarts Events & Competition

landyacht

5921 posts

landyacht

WA, 5921 posts

15 May 2011 8:48pm

Arjay said...

nebbian said...

Clarification of the rules please:

Can the seat be adjustable?

And does it have to be solidly mounted to the landyacht?

what you going to stand with the seat attached to your derriere??

Design AND build a sit-on landyacht with a SMALLER wheelbase than Hummingbird, then break Charlottes PB by sailing , infront of witnesses, with a GPS,in opposite directions( this prevents a downhill run).

cut some shims from a beercan, you should empty the can first

4.5m

im going for 3 on an original windsurfer mast

nebbian

6277 posts

nebbian

WA, 6277 posts

15 May 2011 10:07pm

Chook2 said...

!/2" bright steel 1040 shafting, is not much more expensive than 12 mm black round and 3 times stronger. A trip to the local steel merchant if possible, I'd say.

Right, thanks for that Chook. Looks like I'll have to find my local steel merchant

Took it out today and despite many admiring looks from all present, only managed around 2 knots. Helps if there's wind hey.

So split pins are OK in this application?

landyacht

5921 posts

landyacht

WA, 5921 posts

16 May 2011 8:32pm

have fun .
do we have photos?just keep in mind that youve drilled a hole at the most stressed point of the axle

nebbian

6277 posts

nebbian

WA, 6277 posts

16 May 2011 11:50pm

To be honest the axle is the last thing that will break

it was built in a bit of a hurry...

Arjay

VIC

267 posts

Arjay

VIC, 267 posts

17 May 2011 12:18pm

landyacht said...

have fun .
do we have photos?just keep in mind that youve drilled a hole at the most stressed point of the axle

be careful of a fatigue failure. It might not break straight away but there is a good chance it will over time

Hiko

1229 posts

Hiko

1229 posts

17 May 2011 12:58pm

12mm is very light for a rear axle and putting a split pin through it on the inside
will weaken it further Maybe you could use a high tensile bolt welded on with the nut
on the outside?

nebbian

6277 posts

nebbian

WA, 6277 posts

17 May 2011 1:16pm

Hiko said...

Maybe you could use a high tensile bolt welded on with the nut
on the outside?

Therein lies the problem... I have no access to a welder

You will laugh when you see how I've attached the axles

Bodge mcBodgery is my middle name.

Still I had the urge and it's built now

landyacht

5921 posts

landyacht

WA, 5921 posts

17 May 2011 7:21pm

send drawings and it will be done, least we can do

Nikrum

TAS

1972 posts

Nikrum

TAS, 1972 posts

17 May 2011 11:41pm

Now there is the Forum Spirit I love. Just wish it and the Forum Gene will help.
Good work boys. Just when I was thinking there is no hope for the Species.
Ron

Test pilot 1

1430 posts

Test pilot 1

WA, 1430 posts

17 May 2011 11:38pm

Nikrum said...

Now there is the Forum Spirit I love. Just wish it and the Forum Gene will help.
Good work boys. Just when I was thinking there is no hope for the Species.
Ron

Would this"species" include Nikrum or is he some neandertal type

nebbian

6277 posts

nebbian

WA, 6277 posts

18 May 2011 9:14am

Now now boys, play nicely or I'll send you to the naughty room

Nikrum

TAS

1972 posts

Nikrum

TAS, 1972 posts

18 May 2011 11:21am

Damn! I heard that someone had smacked that in the head with a shovel. I just don't have any luck

. Dang! TP1, Haven't you learned yet.. I am of the Gods>
Ron
PS; As soon as I can get Andre to help I shall upload a couple of frames onto his server.

tassiefubar

TAS

113 posts

tassiefubar

TAS, 113 posts

18 May 2011 12:35pm

This is a project for Naffy

Here he is on his first sail last year.

We need to work on getting him to put in the odd turn or two....pity the rules state you have to go both ways

landyacht

5921 posts

landyacht

WA, 5921 posts

20 May 2011 4:54pm

here is the current champ

here is the challenger, code named BLACK oOPS given the state of world affairs when I started building

let the battle begin

Arjay

VIC

267 posts

Arjay

VIC, 267 posts

20 May 2011 7:08pm

nice to see ............Dad!!

desertyank

1264 posts

desertyank

1264 posts

20 May 2011 5:32pm

Careful LY, 'trouble' looks at least as fast as 'oops'

landyacht

5921 posts

landyacht

WA, 5921 posts

20 May 2011 9:17pm

both the girls have been itching to have a go in the new yacht, its definitely a elbowpad job this one

nebbian

6277 posts

nebbian

WA, 6277 posts

21 May 2011 1:13am

Does a seat harness count as a "seat"?

I'm hoping so, as otherwise my entry doesn't qualify

It should come in under the length and width criteria once I move the axles around.

I wouldn't worry about the speed, there's no way I'll feel safe above 20 km/h...

desertyank

1264 posts

desertyank

1264 posts

21 May 2011 2:22am

nebbian said...

Does a seat harness count as a "seat"?

I'm hoping so, as otherwise my entry doesn't qualify

It should come in under the length and width criteria once I move the axles around.

I wouldn't worry about the speed, there's no way I'll feel safe above 20 km/h...

The suspense is killing me! Are you able to post pics of the beast?

Nikrum

TAS

1972 posts

Nikrum

TAS, 1972 posts

21 May 2011 10:53am

landyacht said...

here is the current champ

here is the challenger, code named BLACK oOPS given the state of world affairs when I started building

let the battle begin

Ah!

How come the kids haven't got Pointy Heads like their Dad

Ron

Test pilot 1

1430 posts

Test pilot 1

WA, 1430 posts

21 May 2011 11:24pm

The point only grows once adulthood is reached

Chook2

1249 posts

Chook2

WA, 1249 posts

21 May 2011 11:44pm

Hey Charlotte, I bet that yellow T shirt has,
"Suck it up buttercup" on the back.

He he.

Don't you go lettin' your old man beat you, will you now!!!!

That is looking a real cosy fit Paul. Us tubbies, are at a huge disadvantage here.[}:)]
Been flat out, but will try and tie something together, ready for October.

Nikrum

TAS

1972 posts

Nikrum

TAS, 1972 posts

22 May 2011 9:43am

Talk about "Ham for the Cam'"
Ron

Chook2

1249 posts

Chook2

WA, 1249 posts

22 May 2011 10:18am

and why not Ron, after all, she is world champion in that class!!!!!

Nikrum

TAS

1972 posts

Nikrum

TAS, 1972 posts

22 May 2011 12:44pm

Good, Better,Best, never let it Rest untill your Good is Batter and your Better is Best

Go for it Lass,
Ron
PS; Chook does that make you happier??

Chook2

1249 posts

Chook2

WA, 1249 posts

22 May 2011 2:27pm

"PS; Chook does that make you happier??"

Life is too short to be a grump Ron. I'm always bloody happy!!!!!!!!

I did suffer a serious sporting injury 27 years ago, called marriage.
That put a small blemish on my mood for a time.

Geez I've nearly got her trained, so not giving her up now!!![}:)][}:)]

nebbian

6277 posts

nebbian

WA, 6277 posts

22 May 2011 11:52pm

OK here are some pics:

New wheelbase is 880mm I think. Definitely less than 1050 anyway.

Still waiting for some wind to try it out... waiting... waiting...

landyacht

5921 posts

landyacht

WA, 5921 posts

23 May 2011 8:35pm

i havent sailed my speedboard for well over a year now. I think it was because I hit 36kph and realized I could actually hurt myself WHEN I fell off

Gizmo

2865 posts

Gizmo

SA, 2865 posts

24 May 2011 5:47pm

Hey Paul, remember this yacht and sailing at Mallala?
It used 20" bike wheels and fitted through a doorway of 820mm.

It was based on this yacht from the book "Landsailing from RC to the big ones"

landyacht

5921 posts

landyacht

WA, 5921 posts

27 May 2011 8:21pm

never got to mallala, so build it and do it gizmo[}:)]

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