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