forum.ww1aircraftmodels.com
Forum Archive Storage => Des Delatorre International Memorial Group Build => Topic started by: IvotB on February 09, 2019, 07:12:03 AM
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Almost 3 years ago I ordered the 3D prints through Shapeways which were designed by Bo. Then I was ambitious to start the build, but there were other priorities. Now this group build offers an excellent incentive to start and finish this D.III this year. It feels for me that it belongs in this group build in honor of Des as I have seen him exploring different techniques in building ww1 airplanes. And moreover he encouraged me to push on with some building techniques that I tried to use.
So therefore based in the 3D prints and the Taurus models Oberursel engine and probably a lot more I am entering this group.
The starting picture already published in march 2016:
(http://i1180.photobucket.com/albums/x412/Ivotb/Fokker%20D%20III/IMG_6571%20800x600_zpsug3bumuz.jpg)
It will take at least 4 weeks to really get started as I first need to clear my workbench with a large number of brass H0 train models and a possible gauge 1 (1:32) dutch steam engine. Only three etches have been produced so far and another railway modeller is already quite advanced. I wonder how this model will look besides the D.III which have operated in the same era and area:
(https://farm5.staticflickr.com/4840/32062869027_cfd7db6266_c.jpg) (https://flic.kr/p/QRhzUF)
Brass models in gauge 1, gauge 0 and gauge H0.
regards,
Ivo
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Great railway models and the D. III needs to be followed closely! :)
Andreas
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This is impressive, I'm really looking forward to this build. And congratulations on your locomotives, they are beautiful.
Ciao
Giuseppe
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Great choice Ivo, not seen often. Looking forward to your project progressing.
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What an interesting and challenging subject! You are quite right - Des would have been delighted to watch this build! I have a real soft spot for steam locos... lovely models of those too!
Regards,
Marc
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Really great to see you are going to build Bos' Fokker from shapeways. Excellent choice!
RAGIII
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Ivo,
This promises to be one outstanding thread my old friend. Looking forward to seeing the first progress and the best of luck to you in the GB.
Highest Regards,
Gregory Jouette
PS: Absolutely beautiful locomotives!
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Hi Ivo,
I'm looking forward to your build as I have the 3D printed Fokker D.VII to build as part of my entry.
Mike
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Hello Mike,
Yes, it is going to be quite a challenge to build this 3D prints model. Especially as I'm not really convinced with the strength of the prints. Bo has already built his fuselage with internal rigging, but that proved to be a mistake. It seemed that the combination of the 3D print with the rigging material reacted different on changing temperatures inside his house resulting in warping of the fuselage. I'm also a little bit scared to cover the wings with paper or silk. It is going to be an interesting experiment finding out what techniques will work and which will not.
regards,
Ivo
P.S., still haven't started yet. Too many children around who need help with their schoolexams and swimming and gymnastics tournaments. Oh yes; and then there is a job too :)
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Hi Ivo,
It is possible.
Here's a shot of the Fokker D.VII by Spanish modeller and Scale Model World Gold medal winner 2014 and 2015 'Chema Martinez'.
He built his with a 1/32 Wingnut Wings Fokker DVII front fuselage married to 'Aviattic' stripped fuselage, wing and tail elements.
If I can get anywhere near this I'll be happy,
Mike
(http://www.thatoneplease.co/buildlogs/DES/stripdvii.jpg)
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Mike, I'll see what I can do. I do plan however to cover the D.III.
When starting this build I announced that I had to clear my bench from other half products, before I could make a good start with this one. Well, over the last three weeks I managed to get some things done.
The end product should resemble this prototype in the end:
(https://live.staticflickr.com/65535/47925368637_d9ced00092_k.jpg) (https://flic.kr/p/2g213pg)
First I started to get the 3D prints straight. Putting it into hot water and letting it dry helps significantly, but 3 out of 4 wings are still not really straight. I hope to be able to settle this with the covering in the end. I also purchased an ultrasone cleaning device as cleaning the 3D prints by hand proved a little bit too difficult. Beside the fact that the 3D prints and then especially the wing ribs are very delicate and break easily, this is a great help for thorough cleaning the prints.
Then I sprayed most parts with grey primer and most wooden parts in a light brown color and the fuselage in a grey-green color.
(https://live.staticflickr.com/65535/47925368167_907dbe2517_b.jpg) (https://flic.kr/p/2g213ga)
Because the first fuselage didn't arrive in one peace Shapeways provided me with another fuselage giving me a fuselage for testing some construction.
One of the first things to do is to attach the main fuel tank with wire into the fuselage. This is a kind of circus act, trying to balance the tank with 4 strings attaching them to 8 attachments in the fuselage. I took only 4 strings leading them through the holes in the bottom and the sides of the tank to the upper part. And then you have 8 loose ends. I attached one end of every string with a piece of tape to the fuselage and then carefully tightening the strings with the four loose ends. Then one after the other was secured with CA. Now the tank can still move up and down a little bit and later on during the construction I will secure the tank in its final position. It all seems easy when Bo showed his final result, but apart from the covering of the prints later on and the attachment of the control wires to the control surfaces and the controls in the cockpit, I expect that this has been one of the most difficult things.
Here you see the attachment with the tape:
(https://live.staticflickr.com/65535/47925370482_c00450b7c2_b.jpg) (https://flic.kr/p/2g213X5)
(https://live.staticflickr.com/65535/47925368082_0a371e1f6a_b.jpg) (https://flic.kr/p/2g213eG)
I tried to give the tank a used look, but my weathering skills are not up to the usual standard shown here. But this tank will be only visible behind the pilot's seat.
Here the front tank, the seat, the back cover and the cockpit floor are test fitted to the fuselage:
(https://live.staticflickr.com/65535/47928537121_737c937e74_z.jpg) (https://flic.kr/p/2g2hhhi)
More to follow.
regards,
Ivo
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Ivo, What you have done to date is superb! I can't even imagine the challenge of attaching the tank with wires :o Looking forward to your next update.
RAGIII
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That is really a beautiful stripdown!
I can imagine, that this printed plastic is more brittle compared to my PE brass stripdowns even in a bigger scale.
Good luck with this parts and project!
Cheers,
Frank
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Thank for the encouragement.
I have already done some additional items. I'm running behind here because I'm using Flickr as my photo website and they have had (and still have) a lot of problems with their website and service.
I have tried to fit more parts to the fuselage. One of the issues that need attention is the fact that the 3D prints do not always have an even surface as they ar printed in layers. There are already other techniques available, but this is of the layer kind. I was very suprised though the really small details are being reproduced like for instance small holes in the main wing girders. Holes with a size around 0,3mm which I find pretty good.
But the surface effect can be seen here. It is already sprayed with primer and before I gave a treatment with a glass fiber pencil, but I will have another go at it:
(https://live.staticflickr.com/65535/47929514843_99c6866390_z.jpg) (https://flic.kr/p/2g2nhVz)
(https://live.staticflickr.com/65535/47929511107_7aed42a77f_z.jpg) (https://flic.kr/p/2g2ngPa)
In the front there small pins thatb are going to support the MG supports. Bo recommends to drill a hole of about 0,25mm in them and that proved to be possible.
I just put Gaspatch MG's on top to get an idea:
(https://live.staticflickr.com/65535/47929514743_515ea82102_z.jpg) (https://flic.kr/p/2g2nhTR)
(https://live.staticflickr.com/65535/47929514903_30eb8a3bff_z.jpg) (https://flic.kr/p/2g2nhWB)
The ammunition bins have also been added in between the frame of the fuselage.
regards,
Ivo
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Really looks Terrific! The wing center in place, the Spandau test fit, and the ammo boxes are well done!
RAGIII
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I have only just founrd this!! I have not seen 3d printed models before so I am very interested to see how ti sone proceeds - if what you have done so far is anything to go by, it is going to be a first class model in every way. A lot of scratch building techniques needed here but looking at your locos this will probably be something of a walk in the park for you.
Stephen.
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Steven, I hope to be able to show that it can be done, but it is all pretty tiny and requires careful handling.
Some additions to the cockpit:
(https://live.staticflickr.com/65535/47931540221_41ce602897_b.jpg) (https://flic.kr/p/2g2xEZT)
Bo designed some niceties. Here you see the cockpit floor, the rudder pedals, three parts to build the compass and the top of the control column.
The challenges here is the top of the control column. Don't cut anything from it's 3D base, but first drill a small 0,25mm hole in the handles and bend and fit some 0,25mm wire inside. In doing you also glue this wire unto the middle part which is the button for the MG's and underneath connects the handles to the column. Do that all when these three parts are still connected to the base and after the glue has cured carefully cut the parts off.
It all requires a lot of painting still, but here you get the picture how it all fits in the cockpit:
(https://live.staticflickr.com/65535/47931519577_898db965b5_b.jpg) (https://flic.kr/p/2g2xyRX)
(https://live.staticflickr.com/65535/47931519687_46f6cddc1b_b.jpg) (https://flic.kr/p/2g2xyTR)
I couldn't resist trying to fit some other parts to get an idea about the finished model.
(https://live.staticflickr.com/65535/47931519632_29ce07270e_b.jpg) (https://flic.kr/p/2g2xySU)
If I can manage to make control wires running through the fuselage at least the rudder will be controlled from the cockpit. The control stick cannot move the elevator as it doesn't move to the front and back. In theory controlling the ailerons is possible.
regards,
Ivo
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That is really awesome Ivo! Really looking spectacular!
RAGIII
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This is starting to look seriously impressive.
I know what you mean about the 3D printed layers leaving the surfaces a little rough. Even though 3D printing has come a long way, there are still limitations with the techniques and materials used, but nothing a modeler can't overcome.
There are more 3D printed parts for the D.II than those created for the D.VII, so should create a highly detail model.
It's a shame that you're intending to cover the model, which could lose a lot of the structural detail.
I think if it was me I'd build the structural model with a second modified (where necessary) Fokker D.II from Special Hobby (Kit 32065).
That's essentially what I'm doing with my 'Fokker Pair' build,
Mike
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It's a shame that you're intending to cover the model, which could lose a lot of the structural detail.
I think if it was me I'd build the structural model with a second modified (where necessary) Fokker D.II from Special Hobby (Kit 32065).
Well, Mike, I agree with you that it's a shame to cover the model. However it will not be an LVA Fokker D.III. And I'm kind of a collector. I'm trying to build anything that has flown with an orange ball or the cockarde from the RNLAF (not all in 1:32 though). So I'm afraid I am going to try to cover it. Maybe a second copy will not be covered, although I'm hesitating a bit about the cost involved. The required prints nowadays are produced at a price of about 300 USD. That's a bit expensive. I do have the Special Hobby D.II and the Wingnut Wings E.IV kits available as a reference or to use for additional parts. So far the E.IV gave me a cushion for the pilot's seat and will help me too for some instruments.
It is an idea to look at the differences between the D.II and D.III. I'll take a look at the drawings provided in the Albatros publication. But I'm afraid it's a lot more than the engine and the cowling.
regards,
Ivo
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Moving along nicely !!!
Ed
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Small update in any sense:
(https://live.staticflickr.com/65535/47961387361_1ab8aa8b66_b.jpg) (https://flic.kr/p/2g5bDvK)
Some instruments that will be placed in the cockpit. From left to right: magnetoswitch made from a PE set of HGW Weggarten for the Fokker E.IV, in the middle the throttle lever gear from thesame set and to the right the compass made from three parts of the 3D prints shown earlier and a compass from a PE set from Eduard. The last one was damaged as it didn't fit at first and I use a small file to make it fit. That went ok, but in gluing the instrument into its housing a tiny drop of CA was aparantly left on my finger leaving part of the pre painted surface sticking to my finger instead of staying on the instrument.
Well I have another, so this can be corrected.
All instruments have to be painted before mounting it in the cockpit.
regards,
Ivo
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All three look great! I really like the throttle assembly!
RAGIII
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Fantastic details Ivo. :D
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Sweet details!
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I think if it was me I'd build the structural model with a second modified (where necessary) Fokker D.II from Special Hobby (Kit 32065).
I have had a closer look at the D.II from Special Hobby to see if what you suggested can be done. And the answer is yes, but there are a number of issues. First of all the surfaces of the wings and fuselage are very dull and do not reach the standard I'm used to from for instance WnW and what I hope to achieve with the Shapeways prints. But the other issue might be more important. It seems that this D.II is not correct in 1:32 scale. I didn't measure it yet, but it is larger than the D.III prints from Bo and it should be the other way around. Also the fuselage apart from the engine cowling for which I can use the surplus D.III print the forward part has some distinctive differences. When looking at your Fokker pair project I know this can all be solved, but due to time constraints I expect to stick with my original plan.
regards,
Ivo
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Beautiful updates, tiny details are amazing.
Ciao
Giuseppe
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I think if it was me I'd build the structural model with a second modified (where necessary) Fokker D.II from Special Hobby (Kit 32065).
I have had a closer look at the D.II from Special Hobby to see if what you suggested can be done. And the answer is yes, but there are a number of issues. First of all the surfaces of the wings and fuselage are very dull and do not reach the standard I'm used to from for instance WnW and what I hope to achieve with the Shapeways prints. But the other issue might be more important. It seems that this D.II is not correct in 1:32 scale. I didn't measure it yet, but it is larger than the D.III prints from Bo and it should be the other way around. Also the fuselage apart from the engine cowling for which I can use the surplus D.III print the forward part has some distinctive differences. When looking at your Fokker pair project I know this can all be solved, but due to time constraints I expect to stick with my original plan.
Hi Ivo,
I must admit I've not looked into comparing the two but if what you say is correct, then one or the other is not in scale.
My WNW and Bo's Fokker D.VII's match up pretty well, so I'm guessing, as you said, that the Special Hobby kit is too large.
That said if the two were displayed together but not too close to each other, the viewer probably wouldn't notice the difference.
Unless of course they are a modeler!!!
Mike
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More details. The cockpit needs seat belts. Webgarten provides those for the Fokker E.IV. They must fit more or less. The question mainly remains where the seat belts are connected to the fuselage frame. The bottom belts will be attached to the girder where the seat itself is attached and the shoulder straps will probably be fitted to the highest cross girder above the seat.
So first I started with this: a PE from Eduard with belts:
(https://live.staticflickr.com/65535/48039064277_3df274564d_b.jpg) (https://flic.kr/p/2gc3L9V)
The belts are taken from their paper backing and crumbled as instructed. Then they are glued to the PE buckles and straps. In the end you have a set like this:
(https://live.staticflickr.com/65535/48039001268_b8a458b397_b.jpg) (https://flic.kr/p/2gc3rqy)
Now they have to be painted. I attached them to a piece of paper with pins and tape:
(https://live.staticflickr.com/65535/48038959606_5c52c5b3e1_b.jpg) (https://flic.kr/p/2gc3e3f)
First they will get a gloss coat, then a wash with diluted brown oil paint and a finish with matt cote.
In the end they need to be connected here somewhere:
(https://live.staticflickr.com/65535/48038959471_85e8060373_b.jpg) (https://flic.kr/p/2gc3dZV)
A spare cushion was found in the E.IV kit. It needs some trimming, but in the end it will fit in this seat.
(https://live.staticflickr.com/65535/48038959406_e20a9d88c1_b.jpg) (https://flic.kr/p/2gc3dYN)
regards,
Ivo
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Looking Fantastic! The belts turned out great. Hard to believe they are PE!
RAGIII
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Really like what you are doing here so far , those belts look great !
Terri
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Hi guys, perhaps you can help me. I think I remember that Lukasz (Taurus Models) posted the build of one of his resin Oberursel engines. I'm building his 14 cylinder U.III and I'm looking for the detail on the cylinder head. There you can imitate open and closed valves, but I'm not sure what the differences are at the back end of the cylinder head.
Does anyone also remember these posts by Lucasz and could you help me find them? The Search option doesn't seem to direct me to any of those posts.
regards,
Ivo
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I've started with the U.III. To get a good impression I've built at first the main parts of the WnW Oberursel. Then I started with the version of Taurus Models.
(https://live.staticflickr.com/65535/48057242716_367d14c183_b.jpg) (https://flic.kr/p/2gdDVYh)
The centre and the carter covers on which the cylinders have to be attached. One cylinder is shown. All these parts have to be separated from their casting base. I drilled a hole through the carter from the front to get a good centred hole with which I can attach it to the firewall and still be able to turn the engine with the propellor in the end. If you use a drilling machine with a good clamp it is possible to do this.
These are the cylinders with castings of the cylinder head with the base for the valve lifters:
(https://live.staticflickr.com/65535/48057338152_d07040ed0a_b.jpg) (https://flic.kr/p/2gdEqkJ)
Here you can see the WnW and the Taurus engine next to eachother. I didn't count them, but I have the impression that the Taurus version has all cooling ribs on the cylinders. It is amazing that this can be casted flawlessly:
(https://live.staticflickr.com/65535/48057291323_ff92b277ff_b.jpg) (https://flic.kr/p/2gdEbqk)
Next step will be to install all cylinder heads and the lifters. I need to make up my mind whether I'm going to paint this part first in steel before the next steps.
(https://live.staticflickr.com/65535/48057242576_56a7dbfb9f_b.jpg) (https://flic.kr/p/2gdDVVS)
Here you see the spark plugs to the right, the cylinder heads in the middle, the valve lifting gear to the left and the parts for the pushrods at the centre near the camshaft (?). Although it is not so much a camshaft but more a cam axle. I'm not sure about the correct word for this engine part. It is invisible in the model.
regards,
Ivo
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As good as WNW engines are that is a Huge difference in quality! I am sure whatever decision you make on painting will work out fine! Looking forward to your next update.
RAGIII
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Amazing comparison of the two, agree with Rick, that Taurus is incredible (you get what you pay for).
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Hi guys, perhaps you can help me. I think I remember that Lukasz (Taurus Models) posted the build of one of his resin Oberursel engines.
Found it: http://www.taurusmodels.pl/pdf/3216%20DetailedInstr.pdf
regards,
Ivo
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This is looking great Ivo.
Amazing to see it go together in another pair of hands!
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Ivo -- if you are on FB, I did a step by step on building the Taurus U.III. The tricky part is assembling the lifters. I ended up inventing a tool (sort of) to assist.
The thing looks fairly amazing when put together...
(https://live.staticflickr.com/4754/26377349188_8776bbaa26_b.jpg)
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I think if it was me I'd build the structural model with a second modified (where necessary) Fokker D.II from Special Hobby (Kit 32065).
I have had a closer look at the D.II from Special Hobby to see if what you suggested can be done. And the answer is yes, but there are a number of issues. First of all the surfaces of the wings and fuselage are very dull and do not reach the standard I'm used to from for instance WnW and what I hope to achieve with the Shapeways prints. But the other issue might be more important. It seems that this D.II is not correct in 1:32 scale. I didn't measure it yet, but it is larger than the D.III prints from Bo and it should be the other way around. Also the fuselage apart from the engine cowling for which I can use the surplus D.III print the forward part has some distinctive differences. When looking at your Fokker pair project I know this can all be solved, but due to time constraints I expect to stick with my original plan.
Hi Ivo,
I must admit I've not looked into comparing the two but if what you say is correct, then one or the other is not in scale.
My WNW and Bo's Fokker D.VII's match up pretty well, so I'm guessing, as you said, that the Special Hobby kit is too large.
That said if the two were displayed together but not too close to each other, the viewer probably wouldn't notice the difference.
Unless of course they are a modeler!!!
Mike
If the suggestion is to substitute parts from the D.II to the D.III -- unfortunately, although the two aircraft are very similar in concept -- they differ in almost every dimension, and in myriad detail: larger wings on D.III with wider chord and more ribs, deeper fuselage, the fairing are different, undercarriage also completely different -- perhaps the empenage bits were shared but that's even a little doubtful. Chalk it down to to the way they did things back then, i guess.
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Ivo -- if you are on FB,
No, I'm not. Perhaps finally a good reason to subscribe. Although I have the impression it is going downward with FB. It seems that Instagram is getting more popular.
regards,
Ivo
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Small update ;) again.
Today I added the cylinder head and the valve lifters to the Oberursel U.III
First I have cut all the parts of their casting blocks:
(https://live.staticflickr.com/65535/48069335007_b1603e433d_z.jpg) (https://flic.kr/p/2geHUA4)
So now I have 14 cylinder heads and 15 valve lifters (the last ones are on a casting block with 5 lifters)
The cylinder heads are then glued inside the cylinders with epoxy. Not with CA as it will be impossible to correct their position once inserted as it is a tight fit. In test fitting 2 cylinder head lost the fitting of the valve lifters, but I hope to be able to attach those tiny parts again. One valve lifter is eternally lost to the carpet monster and 2 others are broken. These I hope to be able to fix as well. But the other parts have been connected to the engine. While doing that don't forget to cut a tiny piece of the actual valve end which is casted in the middle of the cylinder head. Thus creating 4 open valves and 10 closed ones. While I did that I have gotten a better idea about the functioning of this engine. Because there are in the U.III 14 cylinders (2 in a circle around the crankshaft) it is now possible to make the iginition sequence in a perfect boxer mode, thus reducing the vibration of the engine. The opposing cylinders however are never in thesame circle so they are unfortunately a little bit shifted along the crankshaft. But this engine should have less vibration when compared to the U.II .
It is also nice to realise that this must have been a 14 cylinder 2 stroke rotation engine, which must have produced a huge a amount of noice and dirt, as there is no exhaust, just an opening of every cylinder with a valve. Well all is well known to most of you here I guess.
My engine is now almost ready for its first coat of paint. I just have to fix the 2 cylinder heads and valve lifters. And of course adding a spring of a piece of 0,1mm brass wire on every valve lifter. And in the meantime not destroying any already placed parts. All is extremely delicate and there is almost no safe position to store this engine apart from putting it on the Fokker itself protected by the cowling.
It's state so far:
(https://live.staticflickr.com/65535/48069230581_cd3610355b_z.jpg) (https://flic.kr/p/2geHnxB)
regards,
Ivo
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Nice work -- assembling those lifters is tricky -- heck, cutting them off the block without destroying them is tricky. Congrats.
my technique was to assemble them with the cylinder heads still on the casting block -- I made a little helper tool that was really nothing more than a stack of styrene with a piece of two sided tape stuck to it. I'd put the block int position, then gently roll the lifter into place -- then CA it.
(https://live.staticflickr.com/65535/48069440763_3829be09a7_k.jpg)
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Really looking great in spite of the lost and broken parts. I am certain you will pull off a beautiful result!
RAGIII
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I tried to repair the broken parts, but crashed and burned.
So I contacted Lukasz last night and he promised to send me some spare parts. In the meantime I can try to bend and fit some springs to be made from 0,1mm brass wire. Is also a fiddly job.
regards,
Ivo
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My respect for the courage for such a build. The complete build looks great, can't wait to see the engine ready.
Bye,
Manni
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The spare parts for the engine hopefully will arrive somewhere next week. In the meantime there is still a lot of detail to be made. One of them is scratch building the rudder and elevator control horns. Bo explains to make them out of 0,1mm brass sheet (it says 1,0mm, but that's a mistake)
So first for every control horn three strips of brass where made:
(https://live.staticflickr.com/65535/48099890602_10ba99431b_b.jpg) (https://flic.kr/p/2ghqvGE)
The smaller part is sandwiched between the two larger parts. This way you should be able to fit an eyelet in between. I have soldered the three parts together and filed them into the correct shape:
(https://live.staticflickr.com/65535/48099890572_50bee9413b_b.jpg) (https://flic.kr/p/2ghqvG9)
The two larger ones are for the elevator and the smaller for the rudder. Then holes have to be drilled into these horns. This is a little bit fiddly because at the end this should be done with a 0,2mm drill and I don't dare doing that by hand. So I put them in my milling machine and drilled the holes. Unfortunately one of the three control horns were dropped on the floor and has disappeared now. Tomorrow I will try to find it, or make a new horn.
In the middle of the horn a larger hole is drilled.
And this is where these horns are going to find their final destination:
(https://live.staticflickr.com/65535/48099836273_c872658d71_b.jpg) (https://flic.kr/p/2ghqexX)
(https://live.staticflickr.com/65535/48099890542_0a3562f40c_b.jpg) (https://flic.kr/p/2ghqvFC)
regards,
Ivo
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One of them is scratch building the rudder and elevator control horns. Bo explains to make them out of 0,1mm brass sheet (it says 1,0mm, but that's a mistake)
What me? a typo? Impossible! :)
Beautiful work, Ivo!
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Excellent work on the controls and tail surfaces!
RAGIII
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Looking good Ivo, really like what you have done so far.
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One of them is scratch building the rudder and elevator control horns. Bo explains to make them out of 0,1mm brass sheet (it says 1,0mm, but that's a mistake)
What me? a typo? Impossible! :)
:) Twice :)
Text copied from http://flugzeugwerke1917.com/fokkerd3/m19k_assembly_manual.pdf
Pages 17 and 18
17
Turtle Deck
elevator control horns
make 4 outer
plates
make 2 inner
plates
Elevator control horns can be made from a variety of materials. We suggest making them from 1.0mm thick brass sheet, as shown:
18
rudder control horn
elevator
elevator spar is made from
1.0mm x 77mm brass
tubing or rod
But thanks for the compliments guys. It's much appreciated. I'm getting a bit worried about the deadline for this group build. I'm afraid I'm not going to finish this one on time. There's lots te be done.
I'm trying to get the cockpit filled with all details, but there are just not sufficient images. In the Albatros publication about the Fokker D.I - D.IV there is one picture of the cockpit. There seems to be wooden sideboards in the cockpit which are easy to be made of sheet metal or styrene, but is unclear what is fitted. There is a switch on the left hand side, a magneto is nowhere to be seen and the rest will be a big guess. There are drawings which show the position of a compass and a suggestion of a tachometer in the middle below the empty shell bin, which seems to be an odd location as its view will be obstructed by the control stick. But I'll let you see what will be my suggestion. The control stick is now fixed more or less for the elevator control, but it could move the ailerons. I will be changing that in order that the elevators can be controlled as well. Just some scratchbuilding with brass strips.
regards,
Ivo
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You are right, the info on the cockpit equipment is terribly limited. Their is a plywood board mounted on the left hand side of the cockpit to which the typical fuel controls were mounted -- presumably (fuel tank selection and pressure source) the compass was mounted to an upright on the left side. I think the right side had no such board, just canvas.
There would not be a starting magneto afaik. at the moment I can't remember if I ever figured out where the rev counter was -- but it would have been standard equipment.
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p.s. I will correct nd update the offending typos -- thanks for catching that and pointing it out.
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After reading about the magneto, I tried to find anything on the ignition system of the Oberursel U.III. It seems that there wasn't much control of the engine speed. It is explained that normally it ran at full speed, but that there has been a switch with which you could influence the ignition system. It works as an interruption of the ignition so that in stead of an ignition in every cylinder in every cycle there is ignition only every second or third cycle. Thus creating a lot of unused fuel as the carburettor is not interrupted under the cowling causing sometimes fire. I'm not sure if this was still applied in the Fokker D.III, but it is explained about the Gnome Monosoupape of which the Oberursel is originally a kind of licensed production (although I do see differences in valve lifter construction).
I'm learning a lot as always during building a model ;)
regards,
Ivo
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Right- that’s a big part of the reason they caught on fire all the time!
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As this group build is going to end this week I must confess that I haven't been able to finalise my LVA Fokker D.III. I am planning to continue to build it ofcourse. The engine has proved to be difficult. I am at present trying to fit the valve lifter springs, which are made of 0,1mm brass wire. The main problem is that the valve lifters are extremely delicate and once you have fitted a valve lifter on one of the upper cylinders, the lower ones have become detached again. I will finish is, also thanks to Lukasz who has been so kind to send me spare valve lifters for the ones that I have broken.
The weather in our part of the world has also not been very well suited for modelling. Last week a record temperature of more than 40 degrees Celsius was reached in the Netherlands and there are only few houses in the Netherlands with airco.
I wish all participants in this group build best of luck for winning of one of the the rewards in this build. Looking at the beautiful models that have been built it seems that this group build was a big success!
regards,
Ivo
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Sad to read that you will not finish in time Ivo, but I too have run into problems. Others have written that we should not rush to finish - I agree - with all of the effort that you are putting into this I for one will be perfectly content to follow your progress until it is complete. This is a truly superb build.
Stephen.
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It's a real shame you can't finish this build in time Ivo - I've been following this build with great interest and will continue to do so.
I know from my skeletal Fokker D.VII how much is required and how time consuming it gets.
I'm sure I'm not the only one looking forward to the finished model,
Mike
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can't believe i missed this. that's what happens when you don't internet enough.
fantastic work, following....
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Like the others have said I have been following closely and am looking forward to the continuation!
RAGIII
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Really fascinating project. Great progress.
Andreas
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Will continue following your progress , such a awesome build so far .
Terri