Bolkow MHK 101 (oz14407)

 

Bolkow MHK 101 (oz14407) by Bruno Schmalzgruber - plan thumbnail

About this Plan

Bolkow MHK 101. Radio control scale model.

Quote (google-translated from the German): "Description of the Bö 209 (MILK 101) model: The model is built to a scale of 1:5.5. This results in a wingspan of approx 1540 mm and an enormous fuselage width of 195 mm. In terms of weight, this model can cope with all ten-channel systems without the wing loading becoming critical. With today's lightweight prop rigs, there are no difficulties to begin with.

The structure of the model is very simple and requires no more construction time than with the usual multi-channel models. The fuselage has a box construction. The intestines are very easy to access after removing the canopy. You just have to be careful to secure the system from falling out. With the first model, I relied on the canopy, which I attached with two rubber bands and thus believed that the system was secure. However, when it rolled, the hood became independent and the system was thrown out of the model. That cost me the model and participation in the competition for prototypical models on 17/18 May in Munich.

The engine is installed inverted and thus disappears completely, which gives a better look to the model. One half of the front fuselage floor was designed as a cover, on which the tank is attached. This means it can be easily removed from the model if necessary. The rudder and tailplane are made from a 6 mm balsa board and can therefore be manufactured quickly and easily. The area consists of 3 parts. The construction presents no difficulties. First, the two wing ends are made and then finished with the center piece. Finally, cut the ailerons out of the wing. The tricycle landing gear also makes the model easier to take off and land.

The first model had a flying weight of 2900 kp and was equipped with a 10 cc Enya. As an RC system, I still used the homemade Tip system. The rudder, elevator and aileron as well as the engine throttle were controlled. When the grass was already a bit high, the MHK took off perfectly after about 60 m. Due to the low dihedral of the wing, you should fly with aileron, the rudder is very sluggish and can only be used for taxiing. The model has good-natured flight characteristics and a surprisingly good glide even though the fuselage is very wide.

And finally, once again: When securing the RC system, do not rely on rubber bands, these are too unsafe. Especially with this model, where the system is accessible from above, you have to pay special attention to this. I had to go through the bitter experience, I want you to be spared.

Technical data of the model: wingspan 1540 mm, fuselage length 1080 mm, flying weight depending on the RC system 2500 p to 3000 p. Engines from 5 to 10cc."

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Bolkow MHK 101 (oz14407) by Bruno Schmalzgruber - model pic

Datafile:
  • (oz14407)
    Bolkow MHK 101
    by Bruno Schmalzgruber
    from Modell
    60in span
    Scale IC R/C LowWing Civil
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 13/02/2023
    Filesize: 625KB
    Format: • PDFbitmap
    Credit*: Rennfahrer
    Downloads: 614

ScaleType:
  • MBB_Bo_209 | help
    see Wikipedia | search Outerzone
    ------------
    Test link:
    search RCLibrary 3views (opens in new window)


    ScaleType: This (oz14407) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.

    If we got this right, you now have a couple of direct links (above) to 1. see the Wikipedia page, and 2. search Oz for more plans of this type. If we didn't, then see below.


    Notes:
    ScaleType is formed from the last part of the Wikipedia page address, which here is https://en.wikipedia.org/wiki/MBB_Bo_209
    Wikipedia page addresses may well change over time.
    For more obscure types, there currently will be no Wiki page found. We tag these cases as ScaleType = NotFound. These will change over time.
    Corrections? Use the correction form to tell us the new/better ScaleType link we should be using. Thanks.

Bolkow MHK 101 (oz14407) by Bruno Schmalzgruber - pic 003.jpg
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Bolkow MHK 101 (oz14407) by Bruno Schmalzgruber - pic 004.jpg
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Bolkow MHK 101 (oz14407) by Bruno Schmalzgruber - pic 005.jpg
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* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.

Scaling

This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.

 

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