Jump to content
Sign in to follow this  
  • entry
    1
  • comments
    0
  • views
    864

About this blog

 

This all started because of moving house.Not as many places to fly although i was very near a large common pasture ( Beverley Westwood )

In the summer the place is full of dog walkers , children , cows and cow sh#t and lots of grown men in rupert bear trousers hitting little white balls

with bats ,then trying to find them in the rough grass.

But in winter its a bit of a bleak place the walking sh#it machines have gone indoors or into burgers and only the hardiest dog walkers tackle the mud and slopes.

I had a short time kite buggying around the westwood , the ground was not great with a fair few slopes but it was almost doable, but after a few near misses with dog walkers who dont seem to have the first clew about theirs or there dogs safety i started to think about ways to make life a little easier.

Que Mr Holgate ....

Lets convert our kite buggy into a land yacht !!!!

( spoken with an aussie twang )

After sitting through a few videos and reading some forum posts i contacted JH , a few messages and a few kind words and the build was on.

I must apologise at this point for the blatant and fully intentional copy of the Blowmax ,i must also let you all know i am not an engineer by any stretch of the imagination , i dont have pots of money to throw at projects , i dont have a competative bone in my body but i do know how to laugh at myself and dont take life to seriously......

I am quite content to plod up and down a freezing cold beach on my own giggling like a girl whenever i manage to powerslide or go through a bit of water.

My buggy started life as a standard flexi bought from BigE second hand.

I was kindly given a new front end and downtube by Redsky which improved the bug massively allowing me to stretch my legs more.

DSC01055.JPG.4af5e5bfc33afdde448915e964a75c8c.JPG

Next came a buggybagman seat , again from BigE which made the bug so much more comfortable and gave plenty of support

( at 6ft 2 and 100kg i aint no lightweight )

and if the seat worked for E then i should be ok ( not often i have to look up to speak to someone but E is Big )

A set of midi lites for the rear and midi upfront completed my frankenbug.

I found tons of info about land yacts and how to build them , i read so much info from chook on a couple of sites and again blatantly copied what i thought might work.

For a guy who so obviously excels at his chosen sports , Chooks posts were all so positive and helpfull and not full of  YOU MUST GO FASTER,YOU MUST WIN  even though he does !!!!

I started collecting bits and pieces for the build.

I am lucky that we have a contractor at work who does all our pipe fitting and welding (stainless Dave ) all in stainless steel.

For the cost of a couple of bottles of rioja ( thats wine , thats red , thats not in tinnies  ( ;  ) i could get most of my welding done to a good standard.

First thing was to extend my axle from the standard 1000mm to 1550 , dont know why 1550  , it just seemed a good number.

20161112_161321.jpg20161112_161254.jpg

This at least should give me more stability and less chance of tipping , at least that was my theory and a lot of people in the know seemed to agree.

The new axle diameter is 46mm , this has added a fair bit of weight but i think its a good move

Next came the mast step supports , these are made from 10mm thick alloy ( ebay £8 )

These were measured up and drilled to fit over the downtube without any mods/drilling to the downtube.

The supports had to be packed out to accomodate the mast step , i used ptfe sheet ( £6 off ebay ) for this ,very strong ,easy to work with and cheap.

I sandwiched 1mm rubber sheet between the ptfe , support plates and the downtube my theory was this may give a slight flex to the support rather than the downtube taking all the torsional twist under load , on the other hand i could be talking boll#cks.

20161113_130427.jpg20161113_132334.jpg20161113_130408.jpg

Next came the mast step , 500mm long ,60mm ID s/s tube.

I had 2 M12 studs welded to the front of the mast step , these were to fasten the braces on that would go to the back axle.

Also a fastening point for the downhaul pulleys + a cleat to tie the downhaul too.

20161212_114412.jpg

The mast step is held by one bolt , this will allow the mast to be angled (rake ) 7 degrees approx , a lot of conflict on the amount of rake on the forums , most people seem to agree between 3 and 10 degrees so again 7 seemed a good number.

At the moment the braces are fixed so the step angle cannot be easily altered , but in the future i will have new s/s braces made with turnbuckles on them , so the angle can be easily altered , for now i need to prove the project works.

The braces i have used are scaffold poles ( total overkill ) but they were free and alloy so no rust.

20161212_114431.jpg

20161212_123622.jpg

Whilst doing all this i managed to bag myself a mast ( carbon ) ,boom and sail ( 5.5 mtr single cam baton ) for £30.

The sail is not in the best condition , but again it will do to prove the concept ( or not )

Once i had the braces mounted , they are bolted to the mast step and fixed with U bolts to the axle , i realised how much more solid they made the bug feel.

I put a reducing sleeve inside the mast step , then inserted a 1.5 mtr length of scaff pole into the reducer/step.

The scaff pole has 150mm slots cut in the top end to allow flex.

The mast then sits on this scaff pole , the pole goes 1mtr into the mast and 450mm into the mast step.

The mast rotates freely on the scaff pole , although i have not fixed the scaff pole in place and cant decide if i should or not. ???

The scaff pole has a cap on the end and i have put a squash ball in the mast step for the whole thing to rotate on.

20161212_115659.jpg

Still a fair way to go but lets get the sail on this thing.

The sail has a single cam baton , i have never been near a windsurfer before so this all looked a little odd.

Do you slide mast along the cam or do you get mast in the luff tube then try and pop the cam onto the mast ? ( listen to me with all the technical words , normal service will be resumed shortly )

Anyway i got the big flappy thing on the long stick and popped on the little plasticky bit ( thats better )

I had the buggy on its side at this point to make it easier to mount the mast , once all in place i set the buggy back on its wheels.

The 1st thing i noticed was how high the mast was and how big the sail looked.

The 2nd thing i noticed was my neighbour storming towards me because i had blocke all his windows !!! ooops.

As i set the bug back on its wheels i realised how rigid it was with the braces , almost no twist at all , i hope thats a good thing.

The sail looked pretty good although as mentioned not the best example , then i started to sort out the downhaul.

I am using a triple block at the sail end and a double at the mast step.

Once i started pulling on the downhaul line the sail took on a completely new shape , the mast started to get pulled back by the downhaul ( probably about a metre from vertical ) and the sail eventually became drum tight over all its area.This is when all the posts that chook had made about downhaul made sense.

20161212_124845.jpg20161212_132456.jpg

20161220_135106.jpg

20161220_120433.jpg

It was now time to set up the main sheet line.

I now realised my pulley blocks are probably to small , i only have 6mm main sheet line when i reckon it should be 10-12mm ???

What the hell , i can get new pulleys later i need to finish this so i can sail , drive,ride it over christmas.

The mainsheet line was just overlapping the bottom edge of the sail and i was worried this may cause an issue when the sail changes side.

More images on the web and it seems a lot of land yachts have an extension off the back rest which seems to cure this problem.

Lots of rummaging in the garage but nothing springing to mind then a eureka moment , old bike handlebar stem , piece of stainless tube , drill a hole , bit of string , now this is my type of engineering and the rear backrest extension thingy is born.

Now i could carry on with this blog and say how well it went , how fast i went , how much fun i had and how much cow sh#t i got on my tyres but the truth is , its 2 days until christmas and with a wife , 3 children , 3 grandchildren a dog and probably a partridge in a pear tree i wont get to try this for at least another week so for now

Thats all folks 

 

 

 

 

 

Entries in this blog

 

wind

Just checked the forecast to see if i can get out for a maiden voyage tomorrow 60mph wind ,rain and 0 degrees chocolates,beer and christmas carol movie me thinks Bahh Humbug !!!!!

lasrocas

lasrocas

Sign in to follow this  
×