De Havilland DH-4 (oz1610)


De Havilland DH-4 (oz1610) by Richard Meixell 1967 - plan thumbnail

About this Plan

DeHavilland DH-4. Free flight gas scale model of the British WWI bomber biplane. Cox .020 motor is shown.

Quote: "This model was designed to be fun and to be a reliable, steady flier, that is not too difficult to build. The DH-4 was chosen because it is a good looking well-known airplane with a favorable aerodynamic force arrangement and a fascinating history. Just the fact that the center section wing struts could be built into the fuselage sides was enough encouragement to start building. The finished model looked good, but since it is dangerous to predict the success of any airplane before it has been flown, we could not be sure if the DH-4 would answer the fun part of the formula.

Finally the day came! Hand glides were slow and easy due to the plane's low weight and generous wing area. It seemed this model couldn't hurt itself if it tried. And then power flights. The little .020 pulled the DH-4 up in a long shallow clinib just as if it were a loaded bomber headed for the front lines. The plane leveled off at about twenty-five feet up and cruised in wide circles until the fuel was gone whereupon its glide back to earth was slow and gentle. Take-offs required a long run with the tail up just as the real plane would. In short, this model was fun, and far more successful than I had dared hope. It is probably the best flying scale model I have had.

As mentioned, the DH-4 has a fascinating history. Although developed by the British, the plane did some of its most important work for the Americans. It was designed in 1916 by Geoffrey DeHavilland and was named for the designer rather than for the company that built the plane. In fact, the British version was built mainly by the Airco Company, and only 1,450 at that. By contrast, over 5,000 DH-4's were built in this country. The airplane was good, but what made it even better was its engine, which was a 250 hp Rolls Royce..."

Update 28/02/2014: Replaced this plan with a clearer copy, thanks to JJ.

Update 20/11/2017: Added article, thanks to RFJ.

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De Havilland DH-4 (oz1610) by Richard Meixell 1967 - model pic


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De Havilland DH-4 (oz1610) by Richard Meixell 1967 - pic 003.jpg
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