Henschel HS 121 (oz16584)
About this Plan
Henschel HS 121. Radio control scale model. Wingspan 79 in, for Moki VT 50 engine.
Direct submission to Outerzone.
Quote: "As far as I know there was never an RC Model of the Henschel HS 121 and only 2 pictures of Version 1 and 2 are available in the internet and I found a 3 side view. The 121 was later build as a low wing version called the 125, this may be more famous and has been build as model airplane.
The 121 was the very first plane for Henschel in 1934 as a certificate of confidence to the Reichsministerium to qualify Henschel to build planes. It was single seated and got damaged in January 1934. It was rebuild and repaired and reflown in September 1934, with some little variations like stronger gear with additional strut and bigger vertical stabilizer.
Here I decided to make an RC plane from the very first Version. Wingspan is 2,3m / 79 inch and powered by a Moki VT 50 (petrol four stroke). I managed to buy the last engine available in Canada some years ago and so the plane was build that the cowling just covers this engine.
I have sent a lot of pictures, feel free to choose and enclose find all dxf data for wooden parts, CAD files for mouldings and pdf drawings. It’s a rare plane and I hope some people will be inspired to build their own Henschel 121.This one should fly in summer 2026. Watch out for news here.
Matthias"
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Note the main planfile here is a single PDF file with 19 sheets. This serves as a quick overview. For a more detailed (itemised) view, see the supplement file "named_sheets.zip" for the same plan, but here each plan sheet has a title of material and size. Then of course there is the full CAD file download in DXF format. Esentially, these are the wing files. Steve.
Note there is no PDF plan of the fuselage, instead there are 3D STP files.
Note this is a complex project and not for the faint hearted. The wing is complex, but the fuselage is very, very complex. To construct the fuselage a master form is 3D printed in several sections (see STP files) which are assembled together and then used to create a mould. Which is then in turn used to create the fuse. As Matthias says: "...in 100 hours you have a fibreglass fuselage".
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(oz16584)
Henschel HS 121
by Matthias Moeller
2025
79in span
Scale IC R/C Parasol
clean :)
all formers complete :)
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Submitted: 11/02/2026
Filesize: 3122KB
Format: • PDFbitmap
Credit*: MatthiasMoeller
Downloads: 661
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ScaleType: This (oz16584) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.
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User comments
As always, an immaculate plan and construction. Thanks, MatzeJan Novick - 18/02/2026
That's a real beauty, thanks for sharing. Might be my next project, please keep us posted!
Jan - 06/03/2026
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- Henschel HS 121 (oz16584)
- Plan File Filesize: 3122KB Filename: Henschel_HS_121_oz16584_.pdf
- Supplement Filesize: 3125KB Filename: Henschel_HS_121_oz16584_named_sheets.zip
- Supplement Filesize: 3865KB Filename: Henschel_HS_121_oz16584_stp_files.zip
- CAD Zip Filesize: 2577KB Filename: Henschel_HS_121_oz16584_cad.zip
- help with downloads
Notes
* Credit field
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Scaling
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