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Re: Jilles Smits Bergfalke 11_55 built by Clive Learwood**

Let us all watch your new project progress.
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Peter Balcombe
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Re: Jilles Smits Bergfalke 11_55 built by Clive Learwood

Post by Peter Balcombe »

Adam, don’t be put off by mix of metric & imperial dimensions. Just use nearest imperial in U.K.
Thus, 0.8mm is 1/32”, 1.5mm is 1/16”, 2.4mm is 3/32”, 3mm is 1/8 etc.

I doubt that you will find it easier unless you buy an ARTF model.
Jilles
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Re: Jilles Smits Bergfalke 11_55 built by Clive Learwood

Post by Jilles »

My style of drawing comes from my industrial background. A project comes with a BOM short for Bill Of Materials. drawing shows part numbers or code. the BOM gives details/ Standard drawing practices. This gives an overview of material required in one place. Drawings would become difficult to read and clogged up with text and repeating info.
Building a vintage glider of some size is a project in itself and part of that side of the hobby. The alternative is an ARF.
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Cliff Evans
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Re: Jilles Smits Bergfalke 11_55 built by Clive Learwood

Post by Cliff Evans »

Not very challenging then! Just as well go ARTF
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VinceC
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Re: Jilles Smits Bergfalke 11_55 built by Clive Learwood

Post by VinceC »

Adam, you have to face the challenge head on, as that what modelling is, a challenge, not just an easy ride or else you would go to the Toy Shop. If you are concerned about the material sizes, just rip them from standard sheet sizes with a small table saw, problem solved.
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VinceC
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Re: Jilles Smits Bergfalke 11_55 built by Clive Learwood

Post by VinceC »

Over 100 !! Well is there any collateral damage or are they all still around
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Cliff Evans
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Re: Jilles Smits Bergfalke 11_55 built by Clive Learwood**

Post by Cliff Evans »

Adam C wrote: 04 Oct 2020, 10:45 Guys, getting a bit bored repeating this but Ive built over 100 scratch models so Im well aware of the challenges. I just prefer designs that reduce the need to source or cut masses of different dimension wood .

Good designs simplify not complicate a build. Why do you need 5 different stringer sizes for example ? Shame as its a lovely well though out design.

Thanks for the input , helpful or otherwise but I have found a nice laser cut czech bergfalke kit that suits my needs perfectly.

safe flying...
Yes, things have moved on since Keil Kraft!
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Philip Hickey
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Re: Jilles Smits Bergfalke 11

Post by Philip Hickey »

Hi. I been flying the Bergfalke for 3 years now and its only a fabulous glider .
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Re: Jilles Smits Bergfalke 11_55 built by Clive Learwood**

Post by Jilles »

For what it is worth I would like to make some comments as a designer of Vintage scale models
Because of the larger scale there is more detail to be added to make them a real scale model
Material sizes of parts are as required for their purpose. Using a one size stringer section would make the model heavier than nessecary.
Building a vintage scale model is a hobby in itself, and can take some time. If you want a new model and it needs to fly next month then go for an ARF but you have to accept some facts that come with an ARF.
My expereince with ARF models is that they do not last long. the build quality is poor in particular the glue joints, poor applied covering and they are in most cases not true scale and do not fly as well as a well thought out and properly built model.

If you do not want to built or do not have the time than ARF's are theway to go as long as you realize what you get for your money and accept that.
Adam C
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Re: Jilles Smits Bergfalke 11_55 built by Clive Learwood**

Post by Adam C »

Jilles,

I appreciate the comparison to ARTF but thats got nothing to do with my initial concerns.

I accept your designs are trying to be as true to scale as possible and with weight in mind but do spare a though for the cost and availability of all the different wood dimensions you use . I dont have a table saw, planer or similar. I have to buy in the timber pre cut.

For example, Im building a 1/4 scale grunau baby now that uses commercial sized timber ( 5 x 5mm pine for longerons and all the fuselage and 8mm sq spars for example ) that I can but from a DIY store. Its very cost affective compared to having bespoke timber cut and posted to me.

End of the day, im only trying to help make your designs more viable for the average builder.
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Cliff Evans
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Re: Jilles Smits Bergfalke 11_55 built by Clive Learwood**

Post by Cliff Evans »

Adam, you will have to get used to using non-standard sizes, a lot of the wood we use comes from Russia. Here in the UK the supplies of this wood are drying up.. My supplier has now had to source 3mm and 4mm ply from another source and the new source is an entirely different grade of wood. Also, I must say that one of the most satisfying aspects of this hobby is making what is required from what is not the"norm" SlecUK supplies both imperial and metric so in theory, you should really have no problem in getting what you need. Obviously using pine etc from your local DIY store may well be cheaper but the quality of some of the pine they use is not what I would use in a model. If I were to supply one of my kits using some of this DIY wood, I would not hear the end of it. Also in Jilles's defence. He draws his plans for no commercial gain!
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