Dragonfly (oz3169)

About this Plan

Dragonfly. Free flight rubber powered biplane model.

Quote: "After considerable neglect biplanes are staging a comeback, especially amongst those who want a change from the serious business of contest flying, for there is a certain satisfaction in the steady, stable flight of a well designed biplane and it makes a pleasant change from the screaming climb of the duration monoplane.

However, this particular design has quite a good duration; the prototype after flying steadily over a period of some four years, during which secondary minor repairs have added to its weight, can still knock up 70 or 80 seconds under decent conditions and what is more important can fly well and steadily in strong winds.

For those who imagine that biplanes are difficult to fly (a section of modellers rapidly becoming fewer, I am pleased to say) let me honestly say that they are no harder to fly than a monoplane and may frequently be definitely less critical in adjustment and therefore actually easier to fly.

Fuselage. It is logical to start with the fuselage so here goes: Lay down the 3/32 in sq hard balsa longerons, cement the sheet spacers at the nose and tail permanently to the outside edges - not between the longerons - and lightly cement temporary spacers across the longerons as shown dotted on the drawings..."

Update 01/03/2018: added article, thanks to RFJ.

Supplementary file notes

Article.

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