Fournier RF4-D (oz13849)


Fournier RF4-D (oz13849) by Eric Grognet 2005 - plan thumbnail

About this Plan

Fournier RF4D. Radio control scale model of the aerobatic motor-glider.

Note this planfile is derived from the raw scan posted on the AF site by (see datafile). This version here has been cleaned up, aligned and stitched together as a single sheet.

Update 28/5/2022: Added article, thanks to Alain Guillouard.

Quote (google-translated from the French): "A bit of history: The RF-1 and RF-2 were never consructed in series. The RF-3 was built in 90 copies by the company ALPAVIA 3rd Gap. Its first flight took place in March 1963 and production ceased in 1966. The RF-4 is in fact a modified RF-3, and reinforced to be able to perform aerobatics. The prototype made its first flight in November 1965.

The structure of the Fournier was designed in a very classic way: wood and canvas, some fiberglass elements such as the engine cover, fuselage fin fitting and the Karmans. The engine is provided by a Rectimo 4 AR of 39 hp. It's about actually from a modified Volkswagen engine. It is equipped with an outboard-type starter installed in the cockpit allowing start-up on the ground and in flight. The glider plane, as conceived by René Fournier, is a single-seat sports device, of great finesse, designed to be used either as a classic plane or as a motor stopped like a glider.

The RF4 weighs 275 kilos empty and cruises at 180 km/hour with a range of 650 km. His fine piloting and classic, its maneuverability and robustness allow it to be used in aerobatics with or without an engine. In glider use, the propeller is wedged in a horizontal position, to hide the air intakes of the engine, making it possible to increase the glide ratio of the machine and to 'keep warm' the mechanics for an easier start in flight.

Some RF-4 will be manufactured by Alpavia, then it is the German company Sportavia which recovers the production license. The Fournier was then baptized RF4-D (D for Deutschland). The production will however be relatively brief; when it stops, in 1970, 173 RF4-D will have been built in total.

Among the notable facts to put in the prize list of the RF4-D, we can note the crossing of the Atlantic in 175 hours and 42 minutes, carried out in 1969 by the American, MJ Slovak.

Construction: To start assembling the fuselage, you must first join together the back and the front of your plan. For this, two solutions are available to you: the first is to buy a second issue of your favorite magazine in order to use the second plan that you will connect to the first..."

Supplementary file notes

Article, in French.


Did we get something wrong with these details about this plan (especially the datafile)? That happens sometimes. You can help us fix it.
Add a correction

Fournier RF4-D (oz13849) by Eric Grognet 2005 - model pic


  • Fournier_RF-4 | help
    see Wikipedia | search Outerzone
    Test link:
    search RCLibrary 3views (opens in new window)

    ScaleType: This (oz13849) 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.

    ScaleType is formed from the last part of the Wikipedia page address, which here is
    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.

Do you have a photo you'd like to submit for this page? Then email

User comments

No comments yet for this plan. Got something to say about this one?
Add a comment



Download File(s):


* 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.


Terms of Use

© Outerzone, 2011-2024.

All content is free to download for personal use.

For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.

Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.