Author Topic: DRACHENBALLON  (Read 33254 times)

Offline Dirigible-Al

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Re: DRACHENBALLON
« Reply #105 on: March 21, 2022, 02:20:06 AM »
Thanks WD, RAGIII, Stephen, Bob, KiwiZac and Kensar for your patience on this mega long build. I am nearly there now.
If you look at the picture in the last post the two long ropes that dangle from its nose attach to the top of the basket and they are the longest ones. They were originally made with half width thread, the same used for the rest of the basket rigging. I do not know weather they are too thin to be rigid or whether they took a battering while they were hanging and never recovered but they hung twisted and kinked when I tried to attach them to the basket. I have re done them with slightly thicker thread but still thinner than that of the main rigging and hopefully they will look no different to the rest of the ropes around the basket. Being slightly thicker they will hold more superglue and be a bit more rigid. I cut them off, re did them and attached two weights at their ends. The next stage is to soak them in super glue and leave them suspended until the glue cures. This is how I did the rest of the rigging.
    I have had some bad luck. While the basket was on the jig it was attached to a block of wood to keep it the right height and position. Before I took it of it got knocked off the table and landed with the basket end down. The ropes were all bent, I straightened them and applied more super glue. They are acceptable but not as good as before but one achelees heel with this method of rigging is too much glue and the rope glistens like it is diamond encrusted. Another howler was when I attached a clamp to the very end piece of rigging, the cable that goes down to the winch. At the end of a session I cleared the tools away and forgetting the clamp was still attached I grabbed it and near on pulled the entire rigging off. Fortunately it took that huge knock well all but the second generation of rigging from the bottom which consists of four ropes. One had part of the knot pulled out of the pulley it is attached to. This has given it a feather like end and also because of the now slightly longer length of it it has warped the other three. Fortunately this is only slight and after adding more rigging around it the warping can hardly be noticed. The only way to correct it is to strip the whole lot off back to the envelope and start again and I am not prepared to do this having spent so long getting this far. One thing I can say is every now and then I re vamp my models, when I eventually get round to this one I most probably will re rig it.
    Some of the shorter pieces that go from one piece of rigging to another are just wire painted beige because it was simpler to use wire. There are some parts that are actually bent or wavey (particularly round the wind flaps). I simply cannot replicate this with cotton thread so once again I used wire though stretched sprue probably would have been as good.
    A problem I am tackling at the moment is the four ropes that hang free from four pulleys for the ground crew. You can see these are straight and verticals, they had the same super glue treatment as the rest. In flight these can be seen but sweep back (because of wind and the angle of the balloon). I am just running a few tests too see what works.
Thanks for looking in, Alan.
I heard that it all started when a bloke called Archie Duke shot an ostrich 'cause he was hungry!

Offline lone modeller

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Re: DRACHENBALLON
« Reply #106 on: March 21, 2022, 05:25:51 AM »
This last post has sentences which bring back horrible memories.... I think that the important thing to remember is that although our mistakes look horrendously obvious to us, to most, (all other?), observers the finished product is just so amazing that we are blown away by the model. That certainly applies to me, especially looking at the rigging so far.

Perhaps we all need to remember that perfection is the enemy of the very good, (or in this case the very, very good).

Stephen 

Offline KiwiZac

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Re: DRACHENBALLON
« Reply #107 on: March 21, 2022, 07:25:38 AM »
I have had some bad luck.
I read this and, must admit, felt worried for your build Alan! A sad set of accidents but you've recovered well and I'm one of those observers Stephen mentioned in his post!
Zac in NZ

Offline Dirigible-Al

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Re: DRACHENBALLON
« Reply #108 on: March 24, 2022, 03:28:05 AM »
Thanks KiwiZac and Stephen for your encouragement. I like the words of a TV artist who's name I have forgotten, "we don't make mistakes, just happy accidents". I will call these happy accidents because if I am catching and damaging the rigging now what will happen when I come to display it? I will attach 5 tubes to the base for the 5 cable and 4 trailing ropes that will house Thier ends. This should guard against knocks an even if one is snagged, because it is not attached to anything but the balloon it is less likely to cause damage. This whole thing has been a huge learning curve and the only way to find the right path is to go up a few wrong ones first.
    All the rigging is on now and I hope to be able to do a final update by the end of the week.
Alan.
I heard that it all started when a bloke called Archie Duke shot an ostrich 'cause he was hungry!

Offline KiwiZac

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Re: DRACHENBALLON
« Reply #109 on: March 24, 2022, 03:46:22 AM »
I like the words of a TV artist who's name I have forgotten, "we don't make mistakes, just happy accidents".
The late, inimitable Bob Ross - a wonderful mantra for modelling!
Zac in NZ

Offline Alexis

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Re: DRACHENBALLON
« Reply #110 on: March 24, 2022, 10:17:34 AM »
Cool , very cool indeed !


Alexis
Hurra ! , Ich Leben Noch
Body and life is a vessel we use to travel the planet . Femininity is the gift , The miracle comes from what we do with it .

Offline Dirigible-Al

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Re: DRACHENBALLON
« Reply #111 on: March 28, 2022, 10:23:07 PM »
Hello everyone,

I have now sorted out the last thing, the four ropes hat hang down for the ground crew. On the real thing they are swept back, this is because the nose always faces the wind. They hang vertically on my one which looked odd. I tried to shape the thread I had glued on but despite test runs on some I glued to my furniture going OK the thread on the balloon seems to have a life of its own. I have tried to avoid using wire as much as is practically possible but despite this working better I chose to stick to the thread already there because at this stage I am not prepared to take off what has already been glued on, have to make good of what is left behind and risk another so called ' happy accident'. To make the wires swept back I added four posts that attach to the base with magnets. I feel this is cheating somewhat as I originally planned to have this entirely suspended with nothing supporting it from underneath. I know in some time in the future I will need to re rig some if this as nothing lasts forever and when I do then very bottom parts of the rigging will be wire. I originally set out to avoid using wire because once it is bent out of shape it is near impossible to put right. As there are already four posts guiding the four ropes I thought I might as well add a fifth one for the cable. I had posted previously that a handling accident had caused a couple of lines to be slightly bent, this was not he case. It as in fact the four previously mentioned ground crew ropes that did this, their extra weight caused the thread to warp slightly. A small lead weight on the end of the cable rectifies this. One slightly annoying thing about adding these posts to the base is that had I known I would do this I would have angled the cable forward rather than vertical because that is how it is on the real thing. Again because it faces the wind the balloon is pushed back from the winch on the ground.
 
    This is the last post I will make regarding progress but it will be a little bit longer before I put this in the completed models section because during the seven years this has been on my workbench it has picked up its fair share of knocks. Over the last three months, while I have concentrated on the rigging, some of the buckles around the envelope have come off due to handling not to mention a few other things. So I will take this opportunity to thank all that have followed this and also apologise it has taken so long. If this was my second or third Drachenballon the build would have taken a fraction of the time. To be honest, when I set out to build this, I did not know how I was going to do alot of the stuff so I went up alot of wrong paths and also spent alot of time experimenting on ideas. From the start I set out to make a Drachenballon that appears to be completely suspended with nothing supporting it from below. I kind of half achieved this in the end. Another thing I wanted to achieve was a Drachenballon with most of is rigging, the few I have seen built elsewhere have had the rigging vastly simplified and for me that takes away alot of then appeal of the Drachenballon. I accept that I have not included every bit of rigging but I am happy that I have included everything that is practice in a 1/72 scale model. On the same subject of the rigging I wanted all the load bearing ropes to be straight, on others I have seen built they are not. The glue soaked thread made this possible. The last thing is what most people on this site try to achieve and that is accuracy. I struggled with this early on but realised during the build that there is a fair difference in many things from balloon to balloon, basket to basket and rigging to rigging. This is a generic version rather than an exact copy of one I know which does cover my ars to some degree. I will list the mistakes I know of below.
    1. There is a long tail of parachutes or small spherical balloons trailing behind to help it face the wind. These are omitted because it is impracricle to have a meter of thread trailing behind with these attached. The rigging leading to this is there and I have cut it short where the windsack ends.
    2. The rigging suspending the basket is darker that the rigging attached to the winch cable on the real thing. I will spare you the long story of my search for the right thread but when I finally got a reel I was happy with I used it as it came for the main rigging and for the thinner rigging that supports the basket I found a way of splitting the thread to give the half width I needed. Being afraid I would loose the effect super glue has on the half width thread if painted I decided to paint it after it is on the balloon. This was a mistake because when I tried to paint it the effect the paint made was to make it look double the thickness. Being at the point I did not want to strip the rigging off again I left it as it was rather than the right colour and the wrong thickness. If I had known this would happen I would have just bought a different colour of the same thread.
    3. Directly above the basket and in front of the windsack there is a line going width wise across. I originally thought this existed, it appeared to be part of the same line that joins the parachutes mentioned in #1 on a photo but I later realised this was a red herring. When doing the main rigging the rear half that leads to the cable was weighted heavily (so it hung vertically) and I soaked it in super glue as per the rest. I spared the very top of the rigging from the glue so it would still be flexible but the capillary action of the glue carried it right up to the buckles and it ended up being permanently stuck in that verticals position. I tried a few things to fix this but none worked so in the end I cheated and added the afore mentioned red herring line which pulled the port and starboard sides perfectly in the right place.
    4. There is a rip panel somewhere on the envelope but I am dammed if I could reliably see where it is on any of the archive pictures so i left it off. Because the panel was left off the rip cord was also omitted.
    5. There are four lines that run from the basket to the front and back ends of the envelope. I used for this cotton thread which does simulate brilliantly rope in 1/72 but in fact I believe this to be some kind of canvas or linen chord. Eazy Line replicates this perfectly but only when it is taught. Unfortunately it is not taught on the real thing. I suspect these four chords are safety back ups rather than actual supports for the basket.
    6. At the top of the four ground crew ropes mentioned earlier are pulleys which house a few lines. Hanging from these is some kind of apparatus I just simply cannot make out so it was omitted.

    If there is anything else you see then it is something I have missed. Unfortunately I never had the pleasure of meeting August Von Parseval and had I probably would have asked him stuff about his airships rather than his balloons. One thing some may pick me up on and this is a Biggie. Of the few models I have seen of Drachenballons they have all had arched backs. This is correct, they do have arched backs when the are on the ground and not subjected to the pull of the cable and full weight of the basket and rigging. My one is straight. When it is fully airborne (there are very few pictures of these at high altitude) they are in fact very nearly straight. I mentioned in a previous post I got the number of buckles wrong around the envelope. I now think I put the correct number on. The mistake I made was thinking all Drachenballons were rigged the same, not all the same ropes go to the same buckles from Drachen to Drachen.

    These are the things I learned from this build. This has been something at a voyage of discovery.

 1. Soaking cotton thread in Superglue, it's a WINNER! Like a lot of things it is not as simple as it may seem but it is a good skill to learn.
 2. Dense Foam or insulating foam was a godsend in this. So easy to work with and very forgiving. The best quality is its near weightlessness. It's only
    Achilles heel is once it has been sealed with cellulite or glue THAT IS IT! You will not be changing it.
3.Regarding whicker seats I have cheated in the past and avoided by some means or another putting in the cockpit a realistic whicker seat but this is one
   thing I cannot do on a balloon basket, unlike an aircraft this is on the outside. Another winner is the use of Nylon weave on certain outdoor wear. I experimented on several types of cloth and even bought a load of remnants from a habidashsry store but nothing worked as well as a Nylon waterproof work jacket that was coincidentally almost the right colour. Subsequent aircraft builds will have seats made from the same Nylon jacket which now has a few holes in the hood.

Once again thank you for all your support, Alan.

   
I heard that it all started when a bloke called Archie Duke shot an ostrich 'cause he was hungry!

Offline Dirigible-Al

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Re: DRACHENBALLON
« Reply #112 on: March 28, 2022, 10:24:00 PM »
More.
I heard that it all started when a bloke called Archie Duke shot an ostrich 'cause he was hungry!

Offline KiwiZac

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Re: DRACHENBALLON
« Reply #113 on: March 29, 2022, 06:40:00 AM »
Just staggering work, Al.
Zac in NZ

Offline RAGIII

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Re: DRACHENBALLON
« Reply #114 on: March 30, 2022, 04:33:03 AM »
Just staggering work, Al.

I agree and will add: I thought the DH2 had a maze of wires...this is mind blowing rigging  8)
RAGIII
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Offline lone modeller

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Re: DRACHENBALLON
« Reply #115 on: March 30, 2022, 07:22:02 AM »
Absolutely superb.

Stephen.

Offline WD

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Re: DRACHENBALLON
« Reply #116 on: March 30, 2022, 08:35:40 AM »
What Lone Modeller said.

WD

Offline Dirigible-Al

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Re: DRACHENBALLON
« Reply #117 on: March 31, 2022, 06:07:46 PM »
Thank you WD, Stephen, RAGIII and KiwiZac for your kind words.
Alan
I heard that it all started when a bloke called Archie Duke shot an ostrich 'cause he was hungry!

Offline Monty

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Re: DRACHENBALLON
« Reply #118 on: March 31, 2022, 06:56:58 PM »
Quite amazing and stunning work, Alan! An enjoyable thread to peruse... Regards, Marc.

Offline kensar

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Re: DRACHENBALLON
« Reply #119 on: March 31, 2022, 09:17:08 PM »
Quite an incredible model, Al.  It looks very realistic.
Just an idea about the posts with the lines attached - can you put four figures in place of the posts holding the lines?  Even if you don't detail the base any more than that.