Stunt-Wind (oz3616)

About this Plan

Mike Broadbent presents 'Stunt-Wind' all-sheet control acrobatic for .19-.25 motors. Full size plan feature.

Quote: "This month's 'Tight-Lines' continues the short series on Beginners' Stunt Flying and features a simple-to-build stunt model called 'Stunt-Wind'.

Following on from last month's article about the Barton Beginners Stunt Class and with my continued efforts to get out from the Sunday Flyer mode I have designed Stunt-Wind; this design is for a .19 to .25 size engine and is based on ideas from both the USA and Australia and comments from fellow flyer Ray (Postman Pat) Lloyd. Ray has built one of these flat-plate wing stunters before. He has built a smaller version of Stunt-Wind, and will be putting the model through its flight test.

His model is very simple to build and providing the following steps are followed, then a very stuntable machine is the result, which is also cheap and quick to build. I always make up a kit of parts prior to construction and I always make a set of cardboard templates. The effort that goes into the making of these templates takes a little longer, but is handy if you decide to make another example at a later date, or for 'repairs'!

The wingspan is 48in and the wing can be made in two ways, either from 48" long 1/4" balsa sheet, or as is shown on the plan, from 36" long sheet. There are several balsa suppliers selling 48" balsa. If you build the wing from 48" sheet, then anti-warp strips of 1/4 sq very hard balsa need to be fitted, as shown in the accompanying photographs.

Wood selection is always important with any type of model and it is no different with this design. The wood for the wing and tail parts needs to be of quarter-grain med., while the fuselage should be cut from straight grain med. In the case of the wing, take your time in selecting the wood and make sure that the wood you have selected is straight in all directions and that the butt-joints on the two main wing sheets have no gaps. The straighter the wood, the better the wing will be, resulting in a good flying model. That's enough of the lecture. Let's get on to building.

The wing. Start by joining the wing sheets together. I used Aliphatic Resin on the entire wing joints, with plenty of masking tape to hold the sheets together, weigh down the whole assembled wing onto the (I hope flat) building board, and leave it to dry overnight. Next, add the spruce 1/4 x 1/2 central spar..."

Quote: "An all sheet controline stunt model by Mike Broadbent... I think that the plan is full size but all the usual caveats apply".

Direct submission to Outerzone.

Update 19/03/2018: added article, thanks to RFJ.

Update 3/5/2024: Replaced this plan with a clearer copy, thanks to theshadow.

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