landyacht said...
anyway,now the yacht has come up to Gizmos presentation standard its time to get that rig sitting properly.

First the whole show needs to visit Weight Watchers
I threw the chassis with rolled up sail/boom and aluminium mast onto next door's bathroom scales ; over 95kg
While we had the scales we weighed Jesses landyacht design, ready to sail:under 25kg
Jesses landyacht actually floats in the swimming pool
See our latest google video ; Jesses landyacht floats.
go to Jesses landyacht, pick anyone then click "More from user"

If this is one of Bill's 1990 "Faze 5"s.. Koodous to him for using stainless steel fittings and bolts through out. The thing dismanteled in no time.
The keel and rear axle were Dia. 50 X 5 mm galv water pipe.
The aluminium pipe Rydges supplied as a mast was : 50 X 5 mm.
Hack saw, Drill, galv. pipe template...[}:)][}:)][}:)]

Gizmo said: I see so many people change things because they can ... but not often do they come up with a better result
Not because I can because I have no choise...
Lighten up OR cyclone anchor



Back on the scale: this time with the fiber glass mast, sail/boom ; 64kg

I consider it to be the same yacht, only with a more realistic weight, at least I can lift the thing now, though it is still an award shape/size.
Following the marks on the galv pipe the dimentions are identical as before
The aluminium is springier than the galv, I might need a forward brace/hard-stay to stiffen the chassis. See how it goes.
The back brace/stay is also heavy water pipe, could lose more weight there.
The 1200mm long mast foot though aluminium, at Dia.60 X 10mm is heavy could lose more weight there.
The boom is also heavyer than necessary......Even the sail is heavy....
We tried it in the pool, it still don't float

landyacht said: if you are using a glass mast and there is any kind of pressure from the boom when sheeted in hard you can kiss that mast goodbye. they are not designe for that kind of focused load. you will have to consider putting some kind of internal stiffener at that point to carry the load

In the pic you can see the boom sits against the mast foot above the back brace/stay, note the scuffed paint.
The glass mast slides 250mm into the foot, 500mm above the boom point. You can just make out the stopper's bolt. I hope this is deep enough, we'll see. A lighter aluminium mast would slide into the same point.
I'll take some tools next time I get the chance to visit the beach and try leveling the Battens when sheeted -in.

No vang

At this weight I would be able to get both down AND UP the track at Bucassia Beach.
aga

The question of no vang?

Landyacht sail control is quite different than water yachts.
The windspeeds that landyacht sails need to work in are from 10km/h to 100km/h+
where water yacht and sail board sails have a limited wind speed use band.
Have a read of this site it exlains the concept....
www.sailrite.com/High-Speed-Sails
The down haul system flattens the sail and this then gives a much better sail for high speed.
When the sheet rope is slackened the boom rises slightly and this gives a fuller sail and thus the sail has less speed and MORE power, for starting, soft surfaces, turns etc.

Have a close look the pic of Wildfire and the down haul and main sheet system.. By sheeting in it pulls the boom in and down flattening the sail.
The "Pacific Magic" yachts use a centre sheeting system that does a similar thing.

By using a vang as in a water yacht you will limit the landyacht speed by fixing the sail shape to a certain windspeed.

Hi Bill,
I kind a guessed the yacht was not in origonal condition.
After 18 odd years as a hire toy: acidents / corosion / this-will-keep-it-rolling-handymen etc.
I like the idea of lossing the mast foot altogether. A linch pined bolt at the keel bracket would be quick & easy (just how I like it) and allow the yacht to be more transportable, on two wheels without a mast foot it would easily fit the walking track to Bucassia beach.
60kg - with ally mast will be my target
Thanks Bill
aga

PS:

landyacht said...
if you are using a glass mast and there is any kind of pressure from the boom when sheeted in hard you can kiss that mast goodbye. they are not designe for that kind of focused load. you will have to consider putting some kind of internal stiffener at that point to carry the load

The previous photos had an ally mast.

Thanks heaps guys, Paul and Bill in particular.
The "Ridges Fazse5" runs like a dream: fast, smooth, comphortable and very well behaved,
the Mrs even had a few hours in the seat
aga

good to see the whole family sailing. Perhaps Mrs Agamackay could be awarded her own avatar as the official Bucasia beach test pilot. welcome aboard, remember not to take it as seriously as the boys
dont throw that shattered mast away, it will be fine for a boom when you build a mini size yacht.