Cirrus - plan thumbnail image

Cirrus - completed model photo more pics (7)

from Graupner (ref:4229)
118in span
Tags: Scale Glider R/C Civil
formers unchecked

This plan was found online 10/03/2017 at:
Outerzone planID: oz8532 | Filesize: 1508KB | Format: • PDFbitmap | Credit*: Sailterry


About this Plan

Graupner Cirrus - Radio control scale model sailplane. Wingspan 3m. Scale is approx 1/6. This kit used a ready-moulded ABS plastic fuselage.

Quote: - "The design of the model required several deviations from the dimensions of the fullsize machine in order to gain optimum flight characteristics and performance ...a prominent feature of the model's wing is its high aspect ratio. With a ratio of 1:17 it closely resembles the fullsize ship's shape. Thanks to its torsion box leading edge and the appropriately selected airfoil shape the wing is nonetheless torionally stiff and strong the model will be generally flown without aileron control, a dihedral angle of 6 deg has been selected as suiting its wing span best. Wing attachment points at the fuselage are designed for this dihedral angle..."

Supplementary files

Kit instructions (24 pages, in English), thanks to StanHinman.


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User comments

Photo of completed Cirrus model was found online at
SteveWMD - 23/03/2017
I'm glad to see the Cirrus Graupner plan on Outerzone. Cirrus is from 1968, see picture, world champion 1968 [more pics 006]. Here are my three Cirrus gliders, two white and one yellow [more pics 007-009]. My three gliders, built in 1973, have more than 1000 flights, without one crash. The Cirrus flies 100 meters with a hand start.
JulienVermeire - 27/03/2017
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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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