Resources available to replica builders

Jim Bruton · 12 February 2010, 05:03 AM

Hola Antonio,

Franzkait made mine and Achim shows how to make a tool to create them. Please read back through the posts to find these people and contact them. There may be others here who will read your post and be able to help you. If no one can or your research turns up nothing, let me know via private message or email here.

Bien Venidos!

Jim

drrivah · 13 February 2010, 04:55 AM

This may be the wrong venue but Jon Guttman will kick off the 2010 Balch Library Lecture series (Leesbug, Va) with "Emergence of Air-to-Air Combat in World War I: The Origin of the Fighter Aircraft". See: balchlib@leesburgva.gov, (703)-737-7195. Guttman has done a number of books on WW1 a/c for Primedia Special Interest Publications.

2PM, March 14, 2010
Thomas Balch Library
Downstairs Meeting Room
208 W. Market Street
Leesburg, VA 20176

RobW · 13 February 2010, 05:48 AM

Pete,
Why don't you post this up in events section..

ECom · 13 February 2010, 05:58 AM

Quote:

Originally Posted by Jim Bruton

Hola Antonio,

Franzkait made mine and Achim shows how to make a tool to create them. Please read back through the posts to find these people and contact them. There may be others here who will read your post and be able to help you. If no one can or your research turns up nothing, let me know via private message or email here.

Bien Venidos!

Jim

Hi Jim, thanks for the welcome and thanks to all who have responded, I was lucky to find you the help you need, are a closely knit community.

Greetings.

Antonio

Butch · 28 February 2010, 07:01 AM

I will paraphrase an article in the current issue of WoodenBoat, April 2010. A company in the state of Washington, Fluted Beams (Fluted Beams LLC - Architectural Fabricator), 253-495-4747,
uses a technology that was commercialized in Denmark to compress wood. They take green lumber, air dry it to about 25% moisture content, steam it for about two days, and load it into their expensive machine. It is compressed in the long axis by 20%. Then wrapped and shipped. The customer can then bend it, cold, into a knot if desired. Viewed under a microscope, the wood cells look like miniature accordions. When bent, the fibers are pre-loaded so they will not tear and break on the outside radius. It has no spring-back so it does not need to be over bent. It remains flexible for a long time but can be dried in a tent with a space heater. The product has a shelf life of several years. The process does not work on conifer wood, only hardwoods. Ash takes the process very well. Compressed wood is currently being used in boat building applications and several have been sailing for a decade. I talked to the owner. He said they like to produce large shipments but that they have a enough scrap and breakage to make up smaller shipments. They ship internationally. I plan to try the product to make ash wingtip bows and a tail skid. Do a Google search for 'Extreme Wood Bending' for more information.
Pete

Jim Bruton · 28 February 2010, 07:10 AM

Interesting process. I used to hand make Windsor chairs. I would cut and split green ash or oak for the bent bow-backs. All while green, I would take the splits and shave them down with a draw knife on a shaving horse and then once I confirmed the measurements, put them in my steam box for 45 minutes. When I removed them, I had 45 seconds to wrestle them into a jig, where I'd leave them until dry. This sounds like a great method you mention!

Maxim08 · 28 December 2010, 02:21 PM

No new suppliers in 10 months??

I have a jig for Dr1 elevators and will supply assembled units, if anyone is interested.

I've lost his e-mail, so, can anyone provide contact info for Udo (franzkait)?

Regards,
John

Kacey · 13 January 2011, 09:32 PM

Hi KC here, I usually stick to the technical stuff under aircarft, but I came up with something the other night while not sleeping and had this idea to document when morning came.

I call it Simul-Rafwire. As you can see from the enclosed diagram it's a single wire/cable, self-aligning fairing piece.

It uses all the high tech knowledge of furnace flu pipe construction. You know that sheet pressed snap curl connection groove. The inner semi circle wraps around the cable and continuious outer shell wraps around that and back to the side of the emerging circle area.

Should be sized just slightly larger than the cable it is to be used on so it can have it's "self-alignment" properties.

This also allows it to be added or remove for cable inspection.

Each end would have a cap piece that slips over the outside dimensions of the fairing and holds the fairing in place between the cable fittings.

It could be made out of extremely thin aluminum sheet or plastic sheet stock

It would weight nothing.

I KNOW I COULD MAKE A ANOTHER MILLION DOLLARS WITH THIS IDEA.
BUT I'AM TO OLD AND TIRED TO DO THAT AGAIN.

If you do, just give me some credit somewhere OK.

All of you builder are incredibly talented so I thought you should just have this idea.

Respectfully Submitted,

KC

jumpinjan · 14 January 2011, 05:00 AM

I think your wing will be unstable. The CP is at 25% and the wing's CG is behind the CP. Flutter? Not just yes, but hell yes.

1eyedpilot · 14 January 2011, 08:30 AM

Quote:

The CP is at 25% and the wing's CG is behind the CP.

If he could design it so that the cg is on the cp, as well as it clamping down on the cable, it might work.

Actually, some plastic "ribs" that fit over the cable (clamped) and then a thin alum tube pressed to an airfoil shape and cut to lenth, and then the end fairings could be adjustable for small lengthwise amounts?