Ebenezer D-7 oz9778


Ebenezer D-7 - plan thumbnail image

Ebenezer D-7 - completed model photo

Submitted to Outerzone: 05/02/2018
Outerzone planID: oz9778 | Filesize: 152KB | Format: • PDFbitmap | Credit*: DBHL, theshadow


About this Plan

Ebenezer D-7 - Simple all-sheet free flight power model, for engines 0.3 - 0.5cc.

Quote: "WITH THE PRESENT trend in Aeromodelling to most things nostalgic, some of the more mature modellers amongst us will remember an all sheet biplane model, originating from 1958. Yes it is 27 years since the original Bert Striegler designed Ebenezer (oz2208) free flight model appeared. There then followed a succession of 'Ebenezers' under various guises: Triplane, Flying Boat and Flea.

The model described here is what you might call an 'Ebenezer D7' for although the general outlines of the model, follow quite closely a Fokker D7, the construction is quite definitely of 'Ebenezer' origin.

The original designs used any type of motor from a Cox 0.10 to a D.C. Merlin. Although the D7 is designed around an Allbon 'Dart', any small motor will suffice. If you are fed up with the construction on that super-scale job you are building... try this model as a bit of therapy. I completed mine in a week of evenings and that included, cutting the grass and cleaning the car. The one thing that can be said for this model is that it is not going to cost you a lot to build. Also for anyone who has not built a free flight, can I say scale, model before, or if you are a newcomer to modelling, it is the type of model from which you can gain quite a bit of experience. Apart from all that, it is a fun model.

Begin the construction by cutting out the wings from 3/32in medium sheet balsa. The top wing can be cut directly from a 4in wide sheet, or as I did, by gluing a strip onto a 3in. wide sheet! Both top and bottom wings can be cut out as individual wing halves. If you do this, pin The wing platforms should be cut to size from 3/32in sheet, to form the platforms to the correct dihedral angle, cut the platforms along the centre line, and crack the cut..."

Scan from DBHL, cleanup by theshadow.

ref DBHL-7523.

Direct submission to Outerzone.

Update 08/02/2018: added article, thanks to RFJ.

Supplementary files



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oz9778 datafile

Ebenezer D-7  
by John Watters
from Aeromodeller
December 1985 
21in span
Tags: IC F/F Biplane
all formers complete :)
got article :)



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* 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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