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John M's Sabre build

Building this on my narrowboat

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John Marchant15/11/2019 21:50:49
3 forum posts

So, haven't built a model for a fair number of years but . this Sabre caught my eye. I needed something to do whilst away for work during the week on my narrow boat. This should be a bit of a challenge as space is very, very limited.

First things first. I built a building board, timber frame with ply on one side for rigidity and plaster board on the face so I can stick pins in. Cut the plan to fit the smaller build board to give myself a little wiggle room.

The wing is built on a sub frame to ensure correct dihedral and washout. These were pre cut as part of the short kit but all slots were undersize and had to be sanded out so they would fit. the who;e assembly is then like an accordian and needs to be pinned down to maintain the correct alignment over the plan.

I used scrap balsa glued to the frame and then pinned down to do this.

Bottom wing skins are then added. I have pinned the skins down between each ribs to hold the shape whilst the glue dries. I have left these a few mm oversize so I can sand down to the false leading and trailing edges when fitted. Rib and spar positions now need to be drawn onto the wing skin.

John Marchant15/11/2019 21:51:16
3 forum posts

All of the wing ribs need to be sanded on the leading and trailing edges to follow the angle of the swept wing. The spar slots also need to be angled in the same way. They can now be glued down over the bottom spar. False leading and trailing edges have been left oversize to cut back and sand when dry.

Square holes cut for thin ply servo hatches and servo extension leads added.
IMPORTANT note the pins holding down the lower wing sheeting, these must be removed before applying the top wing skin.

Now time to trim the excess sheet

Topside of the wing

Bottom view of the wing

Wing tips and trailing edge added. Leading edges and wing tips sanded to shape. This made a real mess on the boat. Not much more I can do on the boat as the build board for the fuselage is too large. This will be completed at home when time allows

Mark Kettle 116/11/2019 09:03:10
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2470 forum posts
1492 photos

Welcome to the forum John, and, a great narrative building on a boat. Any chance of a photo of the boat by the mooring.

Piers Bowlan16/11/2019 15:33:57
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1904 forum posts
50 photos

Very neat build John, thanks for sharing. Looking forward to the fuselage build when you are able.

John Marchant16/11/2019 19:21:32
3 forum posts

Mark Kettle 116/11/2019 21:23:55
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2470 forum posts
1492 photos

yes

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