Delta X1200 (oz4907)


Delta X1200 (oz4907) from Graupner 1977 - plan thumbnail

About this Plan

Delta X1200. Pusher prop sport model for radio control. Graupner kit # 4647. Wingspan 1160mm. For size .40 power.

Review quote: "Test Report. An exciting and attractive new model - built and flown by Dave Cronin. Graupner's Delta X1200.

AS READERS will have seen from this month's cover, this new model from Graupner is a very impressive-looking creation. Its performance is certainly no less impressive - but let's take first things first.

The main items in the kit are the wing-halves - foam cores covered with 3/32 in balsa, beautifully finished. When joined, these give a span of 45-1/2in (1660mm). The control cables are already in place and the control surfaces, made integrally with the wings, are simply released from them by cutting through a couple of holding 'tags'. The fuselage sides are pre-cut and a nicely made 'moulded sheet' rear decking is another interesting feature. A translucent blue canopy is provided, as well as all the clamps, devises and horns required.

Getting it together. Putting this model together was very rapid and quite easy, I would think, even for the not so experienced

modeller (though this would not apply to the flying, but more anon). The only work to be done on the wings after removing the control surfaces (elevators inboard, ailerons outboard) was the addition of the balsa leading edges, and capping around the control-surfaces - these having balsa mouldings, tapered for top-hinging. I was surprised to find tape hinges supplied in the kit (back to control-line days! - though I must say that this type is particularly good in that it keeps the surface-to-hinge gap to a minimum, giving more positive control).

Having glued all the wing components, one is left with a triangle, which looks nothing like an aeroplane.

The fuselage assembly is a little more time-consuming, as the formers have to be sawn from a very hard piece of plywood. There are alternative engine bulkheads printed on this - one for the Wankel motor and the other for more run-of-the-mill mills..."

Direct submission to Outerzone.

Update 28/11/2016: Have re-scaled this plan now to correct fullsize at 1160mm wingspan, thanks to Derick.

Update 16/10/2018: Added kit review from Radio Modeller, July 1978, thanks to RFJ.

Supplementary file notes

Instructions booklet (in German only) full 24 pages complete with many photos and full parts listing, thanks to Hans Ulrich Stacher.
Previous scan version.
Kit review.


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Delta X1200 (oz4907) from Graupner 1977 - model pic

  • (oz4907)
    Delta X1200
    from Graupner (ref:4647)
    46in span
    IC R/C LowWing Pusher Kit
    clean :)
    formers incomplete :(
  • Submitted: 07/10/2013
    Filesize: 1302KB
    Format: • PDFbitmap
    Credit*: Tomi

Delta X1200 (oz4907) from Graupner 1977 - pic 003.jpg
Delta X1200 (oz4907) from Graupner 1977 - pic 004.jpg
Delta X1200 (oz4907) from Graupner 1977 - pic 005.jpg
Delta X1200 (oz4907) from Graupner 1977 - pic 006.jpg
Delta X1200 (oz4907) from Graupner 1977 - pic 007.jpg

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User comments

This was a quick build kit, partly prefabricated, including the wing which was a styrofoam / sandwich composite. Thus no airfoils or anything like wash out known.
anon - 10/10/2013
Hello. I have restored this old bird and I want share it on your web page [see more pics 006]. I hope you like it. Regards.
nachogarcia - 24/08/2015
Having compared the pdf of Graupner's X1200 to parts from an original kit, I found the Outerzone pdf to be slightly off scale. Having the pdf printed out at 98% solved the problem though. Regards and many many thanks for your excellent work!
Armin - 12/10/2017
With greetings from Germany :) [more pics 007].
OlafP - 15/02/2018
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Download File(s):
  • Delta X1200 (oz4907)
  • Plan File Filesize: 1302KB Filename: Delta_X1200_Graupner_oz4907.pdf
  • Supplement Filesize: 1257KB Filename: Delta_X1200_Graupner_oz4907_instructions.pdf
  • Supplement Filesize: 756KB Filename: Delta_X1200_Graupner_oz4907_previous.pdf
  • Supplement Filesize: 1235KB Filename: Delta_X1200_Graupner_oz4907_review.pdf
  • help with downloads


* 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.


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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