Spitfire IIa (oz14363)

 

Spitfire IIa (oz14363) by Bruno Schmalzgruber 1970 - plan thumbnail

About this Plan

Spitfire IIa. Radio control scale model WWII fighter. Wingspan 1400 mm, scale is 1/8.

Direct submission to Outerzone.

Update 6/2/2023: Added article, thanks to Rennfahrer.

Quote (google-translated from the German): "Spitfire IIA. When Professor Ernst Heinkel presented his He 112 to the RLM as a fighter aircraft in 1935, the responsible gentlemen rejected this aircraft on the grounds that it was difficult to mass-produce elliptical surfaces such as the He 112 used. What was allegedly not possible in Germany was proven by the British with the Spitfire, that such aircraft are also suitable for large-scale production.

It is known today that the Spitfire and the Me 109 alternated continuously in terms of performance and flight characteristics during the war years 1939-1945. The Spitfires were rarely found in the European theaters of war, they were mainly used for home defence and were also used occasionally in Africa. With a wingspan of 11.23 m, it was only slightly larger than its main rival, the Me 109. The 1600 hp Rolls-Royce Merlin 61 engine gave the Spitfire a top speed of 400 mph.

The model is built on a scale of 1:8, which results in a wingspan of 1400 millimeters. Due to the wide elliptical surface, the wing loading remains within acceptable limits with the small wingspan. Today, modern prop systems are used for the most part, which are much smaller and lighter than the earlier tip systems. With these systems, it is possible to lead models between 1.4 + 1.5 m just as securely by the lead as the earlier models, which only really came into their own from 1.7-1.9 m.

The structure of the model is kept as simple as possible without having to forego the exact shapes of the original.

The fuselage is constructed in half-shells, the wing support made of 20 mm balsa boards has proven itself and was therefore also adopted for the Spitfire. The half-shells are planked on the building board with 2 mm balsa wood, the planking is only left out on the lower and upper side in order to later hold the two half-shells together with clothespins at these points until they dry.

The rudder is also assembled on the construction board and planked with 1.5 mm balsa. The tailplane is best made from the lightest solid wood. This is cut out and then sanded. Especially with the Spitfire you have to make sure that the rear part of the fuselage is very light, otherwise you will get into trouble with the position of the center of gravity due to the very short nose of the fuselage.

The wing is just as easy to set up as the conventional wings, but such a structure is unusual. The leading edge consists of two parts that should be easy to bend. The ailerons are cut from the finished wing and are best actuated using linkage and bell cranks.

The undercarriage is almost as narrow-gauge as the Me 109. It is better to widen the gauge a little to ensure that the model starts safely. In order to prevent the model from rolling over during take-off and landing, the wheels should be placed so far forward that the wheel axle intersects with the leading edge of the wing..."

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Spitfire IIa (oz14363) by Bruno Schmalzgruber 1970 - model pic

Datafile:
  • (oz14363)
    Spitfire IIa
    by Bruno Schmalzgruber
    from Modell
    May 1970 
    54in span
    Scale IC R/C LowWing Military Fighter
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 27/01/2023
    Filesize: 324KB
    Format: • PDFbitmap
    Credit*: Rennfahrer
    Downloads: 902

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


    ScaleType: This (oz14363) 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/Supermarine_Spitfire
    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.

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Spitfire IIa (oz14363) by Bruno Schmalzgruber 1970 - pic 004.jpg
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Spitfire IIa (oz14363) by Bruno Schmalzgruber 1970 - pic 005.jpg
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User comments

This Plan is from Bruno Schmalzgruber!
Pascal Rodesch - 06/02/2023
Got it, thanks. Have set designer as Bruno Schmalzgruber, now.
SteveWMD - 06/02/2023
Dear Editor, Good to see some of Bruno Schmalzgruber's old plans now on Outerzone. He was in my hometown and we were clubmates in Traunreut. Recently I was asked if anybody know About his low wing design „Wilde Hilde“. Most of his plans were published by Modell Magazine and FMT, his Junkers 288, equipped with two Speed 400 was the breakthrough in Electric flight for the masses. Regards,
Franz - 07/02/2023
Hello! It was my first plane, my first design, a model that I half sold because they didn't recommend me to fly it, I liked "that Spitfire" and I wanted that plane! haha life made a friend to buy it and after a few years and with my help he was able to finish it and he flew and flies with an asp .61 it goes without saying it flies as it looks, nice! I have always had doubts as to who the designer was, as a builder and hobbyist you want to know where what you are assembling comes from and I have always searched for information about the plan without many results until yesterday and today I have taken the time to find many Thanks for having a little more about it. I will translate the note and read on... if the Creator is among us and anyone knows him, thank him for me! Thank you Outer Zone! Greetings! Daniel from Argentina (use Google Translate)
Danale17 - 10/02/2023
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Scaling

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