Uber Ultra-light tear

[Jst83]

SCOTT

wait 2 week I will bring you the answer it is on my teardrop and my barn

A slide lock door bolt that will lock open or closed or just act as a slide bolt They make a similar non locking version as an inside latch .
National hardware

I so can't wait.

[kennyrayandersen]

Mike,
I think that one was before my time! A search turns up a lot of ‘weekenders’ – folks might want to start giving them numbers on the end as in weekender mk11 etc.

There were some simplified drawings on this one:
http://tnttt.com/viewto ... =weekender
or maybe this one you pointed someone to:

http://www.mikenchell.com/images/finalw ... kender.wrl
or the dxf file:
http://www.mikenchell.com/images/finalweekender.dxf
or the pdf file:
http://www.mikenchell.com/images/mikes- ... inal-2.pdf

There looked to be a lot of weekender-inspired designs out there!
Kenny

[teardrop_focus]

chorizon

Cool pic of "smiling Czechs" and their rig.

angib

Hey, that's enough with the Muscle Cars.

angib





The Vagabund Campingwagen says it has an unladen weight of 58kg - that's 128 pounds!

- Andrew

Now THAT's awesome, right there. What was the box made of? A single-sheet-thickness of al-u-minny-um?

[angib]

What was the box made of?

Babelfish reckons the German text says:

The car is largely enough in order to give to 2 persons a sleep possibility. The “vagabond” was tested dealing with several large trips with a DKW blank 200. It was always benefit of visiting a new area and always of finding the car wohnlich. The cabinet in the car offers place enough, in order to carry all table-ware as well as gasoline digester; fast then a meal is prepared and the table covered and the meal tastes as with nuts.

If it weekday a load supporter need, can be dismounted the body “vagabond” by release fewer screws and a box for load transport be developed, so that the car can serve also as general-purpose vehicle. In all other respects the supporter for motorcycle, for small cars is taxfree amounts to the tax rate in the year DM 18, -.

Technical data:

Unloaded weight of the car: 58 kg.
Tyre: 20 x 2,25.
Car measures without pole (body measures):
Length: 2.20 m, width: 1.20 m, height: 1.38 M.

Chassis is provided with Drehstabfederung, whereby calm driving is ensured. Body consists all edges of water resistantly glued plywood (4 mm), is strengthened by light alloy angles. Door and windows are with Alum. polished cover strips set in, in addition Längszierstäbe with filler.

In the basic price are einbegriffen:

Interior equipment: Wandschrank, baggage net, electrical interior lighting, clothes hook, ashtray.

Other equipment: Back lighting after regulation, door safety lock, number sign and triangle reflector, Kugelkupplung with safety quick-locking mechanism, tyre complete 20 x of 2.25, 2 stands.

In addition can be supplied against special computation:

2 Luftmatratzen,
1 folding table with attachment eyes,
2 folding stools,
1 sun oh with supports,
1 gasoline compressed gas burner,
1 wind protection in addition,
1 cook boiler set,
1 picknick suit-case with contents for 2 persons.

I do love automated translations as I laugh thinking of the earnest bloke reading it out - particularly the bit about "and the meal tastes as with nuts".

So 4mm ply with aluminium angle on the corners is that answer to your question.

Andrew

[chorizon]

Andrew did the heavy lifting. OK, here goes...

Babelfish reckons the German text says:

The car is largely enough in order to give to 2 persons a sleep possibility. The “vagabond” was tested dealing with several large trips with a DKW blank 200. It was always benefit of visiting a new area and always of finding the car livable. The cabinet in the car offers place enough, in order to carry all table-ware as well as gasoline digester; fast then a meal is prepared and the table covered and the meal tastes as with nuts.

If it weekday a load supporter need, can be dismounted the body “vagabond” by release fewer screws and a box for load transport be developed, so that the car can serve also as general-purpose vehicle. In all other respects the supporter for motorcycle, for small cars is taxfree amounts to the tax rate in the year DM 18, -.

Technical data:

Unloaded weight of the car: 58 kg.
Tyre: 20 x 2,25.
Car measures without pole (body measures):
Length: 2.20 m, width: 1.20 m, height: 1.38 M.

Chassis is provided with torsion axle, whereby calm driving is ensured. Body consists all edges of water resistantly glued plywood (4 mm), is strengthened by light alloy angles. Door and windows are with Alum. polished cover strips set in, in addition long trim pieces with filler.

In the basic price are understood/agreed:

Interior equipment: Wall-cabinet, baggage net, electrical interior lighting, clothes hook, ashtray.

Other equipment: Back lighting after regulation, door safety lock, number sign and triangle reflector, Ball-coupler with safety quick-locking mechanism, tyre complete 20 x of 2.25, 2 stands.

In addition can be supplied against special computation:

2 Airmattresses,
1 folding table with attachment eyes,
2 folding stools,
1 Sun-roof (guessed what the original may have said) with supports,
1 gasoline compressed gas burner,
1 wind protection in addition,
1 cook boiler set,
1 picknick suit-case with contents for 2 persons.

I do love automated translations as I laugh thinking of the earnest bloke reading it out - particularly the bit about "and the meal tastes as with nuts".

So 4mm ply with aluminium angle on the corners is that answer to your question.

Andrew

[kennyrayandersen]

I've been working with some French, German, and an Italian guy -- we've used the translators several times, but they have a ways to go before Star Trek's universal translator comes on-line -- they are pretty funny sometimes -- especially the German grammar.

Did you notice that they used bicycle or motorcycle wheels to save some weight/cost? Though there have been some questions raised about the 8 inch wheels and tires, it would seem that they would be more robust than bike, or even motorcycle tires, no?

[teardrop_focus]

angib

I do love automated translations as I laugh thinking of the earnest bloke reading it out - particularly the bit about "and the meal tastes as with nuts".

That's too funny...

So 4mm ply with aluminium angle on the corners is that answer to your question.

Andrew

Thank you, Andrew.

Do you think that a 6 or 7 mm quality ply, made into a teardrop cab with not only a galley bulkhead and worktop but a sleeping cabin forward cabinet all bonded together might not need the alum angle? Perhaps the floor would need to be a bit thicker, at, say, 12 mm...

I already know what I'm going to use as my design is somewhat finalised... but I just wanted to know what you thought of a properly-glued narrow-thickness-plywood monocoque not needing the alloy angle.



Thanks to you, too, Joshua.

[teardrop_focus]

kennyrayandersen

Did you notice that they used bicycle or motorcycle wheels to save some weight/cost? Though there have been some questions raised about the 8 inch wheels and tires, it would seem that they would be more robust than bike, or even motorcycle tires, no?

I believe we did! And I would think that some modern, quality road-going "sportbike" motorcycle wheels and tires would be more than up to the task... I mean, there're some teardrop builders using Model A Ford wheels and tires... and you know that a pair of late-model 200 MPH Hyabusa front wheels and tires would be both a bit stronger and lighter.

[kennyrayandersen]

kennyrayandersen

Did you notice that they used bicycle or motorcycle wheels to save some weight/cost? Though there have been some questions raised about the 8 inch wheels and tires, it would seem that they would be more robust than bike, or even motorcycle tires, no?

I believe we did! And I would think that some modern, quality road-going "sportbike" motorcycle wheels and tires would be more than up to the task... I mean, ther're some teardrop builders using Model A Ford wheels and tires... and you know that a pair of late-model 200 MPH Hyabusa front wheels and tires would be both a bit stronger and lighter.

All motorcycle tires are not created equal!! I suspect that the 'super-bike' tires would be more than up to the job when bike/moped tires may not be so much. The one thing about motorcycle tires is that they aren't typically designed for side loads. At some point of coarse, when the tire is really robust and built for speed then the side loads aren't going to be a problem of coarse. The superbike tires are quite light -- from a tire website: http://www.rcsperformanceonline.com/Bri ... attlax.htm

This is THE front tire to have if you are looking to reduce the rotating mass of your wheels!!! It will also slightly lower your drag bike. The Bridgestone only weighs 6 lbs 10 oz. (on our electronic scale). Available in grooved or slick.

And from a wheel site: http://www.forged-wheel.com/Carrozzeria2.htm

Beautiful Star Spoke Design

Made From Wrought 6151-T6 Forged Aluminum/CNC Machined.

One Piece CNC Hub Design - Street and Track Use

Super Light Weight - Average 7.2lbs (front), 12.7 lbs (rear) (Hayabusa 08 )

So if you used a front wheel, which would be the lightest and an exotic tire and wheel combo, you could get the motorcycle wheel and tire weight to just shy of 14 lb. I suspect that standard issue wheels and tires would weigh a bit more. The tire listed here is $165 dollars and the wheel is (and I actually pooped my pants when I saw it!) $2100 a set. Maybe you could get the front for $950 or something!!

An 8 in trailer tire weighs around :
4.80x8 tire at 5.8 lb, on 8x3.75 steel wheel at 4.7 lb = 10.5 lb and costs about $30-40 bucks.

I was surprised that the sportbike wheels/tires were that much heavier. The 8 inch tire has one real advantage though, and that is it's not very big in diameter, so the total amount of material needed to go around is less.

So I guess, when I was saying motorcycle or bike tires I was thinking usual cheap smaller motorcycle/moped type wheels and tires that would be closer to the same weight and cost. In that case, I'm not so sure they would be as robust, but if your tear was really light as in one that was made for motorcycles, then the motorcycle tires would probably be fine.

[kennyrayandersen]

Some guys on one of the the PDR (puddle duck racers) sites are making some 4'x8' boats. The side boxes reduce the floor span on the inside to less than 3 feet across (short dimension), but at 4mm some guys were still putting their foot through the bottoms (they may also be using cheap Luan as well?). Depending on your final width you might get away with 6.35 mm (1/4 inch) if you have a narrow tear and good plywood.

It will be tough to beat 3mm plywood on either side of a 1 inch EPS foam core for weight. 'Solid' material is always less strong than a sandwich with the structural material on the outer surfaces. You could still stitch-and-glue the corners as with solid material... just

[teardrop_focus]

Excellent research, there, Kenny Ray!




Thank you!

[chorizon]

Thanks to you, too, Joshua.

No prah-lem, mang!

[Big Dave]

...Michelin used to make an actual 8" car tire, but I don't think you can get them any more.

The smallest I know of was the 145/80/10 for the original Mini?

[kennyrayandersen]

...Michelin used to make an actual 8" car tire, but I don't think you can get them any more.

The smallest I know of was the 145/80/10 for the original Mini?

The 4.8-10 which I think is a little smaller also was available for the Isettas (several pictured in the forum towing some REALLY tiny trailers). People sometimes put the 145/80/10s on them but they are just a little big!

I'm not sure the 4.8-8s ever officially made it to the States -- they were for a Messerschmitt KR200 (and some other really small micros). Some guys used to bring the 8 inch car tires in to the States for their KR200s (and KR175s) that they had imported. I heard they couldn't even get them in Germany anymore.

BTW, the Peel P-50 came with 6 inch tires!!!

[teardrop_focus]

Bumping this thread 'cause winter's on the horizon.

I'd like to read the results of more brainstorming.