Kentish Wind (oz3913)

 

Kentish Wind (oz3913) by Stan Robinson from Model Aircraft 1960 - plan thumbnail

About this Plan

Kentish Wind. A 52 inch span C/L stunt model. From Model Aircraft, July 1960.

Quote: "THIS design is really a combination of two earlier models, the Zephyr (oz1089) and my earlier Kentish Wind stunt model, and the final result fully justifies the amount of time and effort involved in its development.

The construction is unusual but it is very strong and light, also much cheaper than many more orthodox methods. I have always believed that if the wing loading is kept low the actual dimensions of the model are unimportant. This is proved by the way my MkII standard Oliver pulls the Kentish Wind through the full stunt schedule, because the model really flies. Flaps are not used as they only increase drag just when it is not wanted, requiring very high power to overcome it - hence my being able to use a '35' size model with a 2.5.

This model has not got a very strong line pull, but even with a 'rough' motor run consecutive overhead eights can be flown until the fuel runs out! The prototype has never at any time shown signs of coming in, in any wind. The general handling characteristics of the model are very docile indeed, but a flick of the wrist and it 'squares' with ease, although it requires a slightly different flying technique to that used with a flapped model.

Construction. It is essential that the following instructions and building sequence is adhered to.

Wing. Cut out all solid ribs and nose riblets, and also the LE and top and bottom spars. Commence by building the complete spar flat on the plan. While it is still pinned down, cement the three solid nose ribs (Rr and R2) in place, then add the 3/8 in sq LE. Cement nose riblets in position, making sure they are spaced correctly along the LE. Remove the complete front part of the wing from the board and add the two solid rear ribs (R3 and R4) checking carefully for squareness.

Make up the bottom half of the TE and pin it to the plan, then packing up the spar with scrap 1/16 in sheet, cement ribs R3 and R4 to the TE, in their correct positions..."

Update 13/07/2020: Added vectorPDF tracing by Hogal.

Supplementary file notes

Planfile includes article.
VectorPDF tracing.

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Kentish Wind (oz3913) by Stan Robinson from Model Aircraft 1960 - model pic

Datafile:

Kentish Wind (oz3913) by Stan Robinson from Model Aircraft 1960 - pic 003.jpg
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Kentish Wind (oz3913) by Stan Robinson from Model Aircraft 1960 - pic 004.jpg
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User comments

Looks as though Hogal's CAD version of Kentish Wind hasn't got to OZ yet. Here it is.
RogerC - 13/07/2020
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