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AchimEngels · 19 February 2003, 10:48 PM

Hi all,

just a short update to keep you posted.

We have located a supplier for the delivery of the steel tubings and have placed the orders. Promise was made that the tubings will be delivered by this week so we may be able to start working on the actual airframe by next week. First thing we will do is to construct the stabilizer of our aircraft which is for sale using oxyacetylene welding. This one will be followed by Wulffo´s stabilizer which will be welded using TIG.

According to the McCook Field reports on D.VII 7774/18 we exclusively use steel tubings with seams, although it appears that both types (seamless and welded tubings) have been used by Fokker at that time.

We have been discussing things for the first time with the German air traffic authorities construction supervisor and have not detected any major difficulties which could hinder the course of traffic certificate in Germany for Wulffo´s original D.III powered aircraft.

We have made first experiments with our drop shape tubing producing tool and it works quite good. We are able to generate drop shape struts of 2m length with it so far. I must admit we have a serious problem how to achieve the correct shape of the tubes, but we are working on the problem and are convinced that we can overcome it after a view modifications of the tools. In the meantime we are just happy to be able to get those round shaped tubes into that drop shaped cross section without the addition of any heat.

Apart from that we are also working on some other tools which we will need to let the course of construction run in a smooth way.

I will show you some images as soon as I have them available.

Best

Achim

19 February 2003, 10:48 PM	#29 (permalink)
AchimEngels Forum Ace Join Date: Nov 2001 Location: Schorndorf - Germany Posts: 2,489	Hi all, just a short update to keep you posted. We have located a supplier for the delivery of the steel tubings and have placed the orders. Promise was made that the tubings will be delivered by this week so we may be able to start working on the actual airframe by next week. First thing we will do is to construct the stabilizer of our aircraft which is for sale using oxyacetylene welding. This one will be followed by Wulffo´s stabilizer which will be welded using TIG. According to the McCook Field reports on D.VII 7774/18 we exclusively use steel tubings with seams, although it appears that both types (seamless and welded tubings) have been used by Fokker at that time. We have been discussing things for the first time with the German air traffic authorities construction supervisor and have not detected any major difficulties which could hinder the course of traffic certificate in Germany for Wulffo´s original D.III powered aircraft. We have made first experiments with our drop shape tubing producing tool and it works quite good. We are able to generate drop shape struts of 2m length with it so far. I must admit we have a serious problem how to achieve the correct shape of the tubes, but we are working on the problem and are convinced that we can overcome it after a view modifications of the tools. In the meantime we are just happy to be able to get those round shaped tubes into that drop shaped cross section without the addition of any heat. Apart from that we are also working on some other tools which we will need to let the course of construction run in a smooth way. I will show you some images as soon as I have them available. Best Achim __________________ To get permanent access to the FTS download archive, You can apply here: MEMBER APPLICATION. Or buy some of our books on early aviation on CD-Rom just to support our work. :-)