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SE5a - dogfight double

Build thread for sept 2003 RCM&E plan

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Dad_flyer11/01/2019 22:11:20
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53 forum posts
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Very little progress this week. Strut holes cut in lower wings. Wing tips blocked up, and one shaped.

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Blocked up, but my 12mm balsa is actually 9mm, so needed an extra bit on top.

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Rough shape with a razor plane.

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One tip shaped. Corners will be rounded a little in the end.

Dad_flyer18/01/2019 11:03:20
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53 forum posts
45 photos
Little time to progress recently, and I have been trying out finishing methods. Tissue and dope for tail and fuse, Easycoat for wings, which are open underneath. I have not done iron on before. Test pieces are now ok, so on to the real thing next session.

What servo torque do I need? the parts are, so far, heading for a flying weight which will be under the design weight of 24oz/680g. 9g plastic gear 1kg-cm will be plenty? Will 5g servos at 0.6kg-cm be big enough? The smaller servos would allow a full depth cockpit for an alternative pilot who fancies a go.
Dad_flyer22/01/2019 22:03:24
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53 forum posts
45 photos

Sanding sealer done all over. Some of the tissue done, but not had much good weather to do that outside. The article in this month's RCM&E was useful for techniques of covering solid areas.

More time spent on the film covering, but I am still very slow, so not much to show for it.

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I have a job lot of cheap yellow Easycoat that was on offer. It will all be painted.

There was a small twist in the wing, I had re-glued the leading edge to the ribs when I saw it was not quite stuck down, after taking it from the board. Not a great idea. Luckily I saw a method somewhere of holding it twisted back past straight and re-shrinking the open underside. This seems to have worked. I shall keep an eye on it to see if it slips back before I fix the wings.

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