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Seagull Funky Cub assemble.

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john stones 128/08/2018 22:26:02
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Funky Cub

john stones 128/08/2018 22:31:39
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Started to assemble it now I have the motor, wing has flaps, these are droop down with a hinge on the lower wing surface, can find no hard points to accept the screws and the hinges are poor plastic ones that look unfit for purpose. Any ideas for an alternative method ?hinges 003.jpghinges 004.jpghinges 005.jpghinges 006.jpg

hinges 008.jpg

john stones 129/08/2018 21:00:05
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It sumat I said ?

What is laminating film, will it iron on ?

Apart from cutting and fitting hard points for screws I'm stumped. wink

cymaz29/08/2018 22:13:49
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Flat hinges ??

john stones 129/08/2018 22:18:00
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Poked it with a pin, feels little there to fix hinge to, trying to avoid cutting in from the underneath if i can.

john stones 108/09/2018 22:27:50
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Well I'm still stuck re the flap hinges, tried to cut a slot and fit fluffy hinges, spars rock hard so I gave up. Fitted the tail wheel bracket, nice bit off kit n lighter than it might look.

f cub 006.jpg

john stones 108/09/2018 22:33:22
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Push rods in loose ready for rudder elevator, two servos needed for elevators, seems daft to me I might join them. Don't like the fitted ply trays for your gubbins, takes all the useful room up and stops you using the weight to balance it.

f cub 001.jpg

john stones 108/09/2018 22:42:06
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After much pondering settled on an NGH 17 petrol for it, size was right and weight is good, are they any good ? we shall see. wink

Few pictures, fitted in pretty well and not spoiled cowl too much, may end up with a wrap around silencer yet, cowls only taped on as yet, so ignore the cockeyed look.f cub 007.jpgf cub 005.jpgf cub 003.jpg

f cub 002.jpg

stu knowles08/09/2018 23:01:54
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Hi John. Seagull Models have both a web site and facebook page. It might be worth posing a question there about the flap hinges??

john stones 108/09/2018 23:13:06
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I will have a look cheers Stu.

Biggles' Elder Brother - Moderator08/09/2018 23:27:49
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Hi John,

sorry I missed this first time round! Re your flap hinge issue I can only think of two options, neither that brilliant!

1. Use screws that go through the trailing edge and poke out the other side. Fix the to a plate there. Popular ARTF solution of course. Not the neatest but simple and it will probably work fine.

2. Cut a square of film off, then make a shallow rebated square in the trailing edge, time cnsuming but not that difficult. Then glue a plate of hardwood or ply into the square recess. Effectively making a hardpoint. Recover that bit with an offcut of film.

BEB

john stones 109/09/2018 00:20:46
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Hi BEB, I may have had a brainwave (don't all laugh) thinking of making f/glass hinges same as is used for control surfaces, then slotting them in with a bit of reinforcing, it's underneath so I won't spoil the look too much, the supplied hinges want binning.

Just got to scrounge some f/glass now. wink

iqon09/09/2018 13:12:36
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Is there anything you like about it.

Gary Manuel09/09/2018 14:32:26
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I'm passing your house within the next hour. I'll drop some fibre glass board off. Get kettle on.

john stones 109/09/2018 14:55:10
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Posted by iqon on 09/09/2018 13:12:36:

Is there anything you like about it.

There's lots I like, it's lightly built, colour schemes good, it'll be fun to fly, it's built straight, wings two piece so easier to transport, its petrol so cheap to fly and not much to carry, glazings fitted already, engines easy accessed, no fffafing about to get at choke/plug or keep an eye on fuel tubes, I'll get 20 minutes flight times, will be a good winter model, no one else at club has one, I got it at a good price, it's a Cub so it'll irritate you. face 1

iqon09/09/2018 14:58:41
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I`m glad you got glazing done, engine fits nice

john stones 109/09/2018 15:03:20
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It does, it looks well made, hopefully it'll run like it looks.

john stones 113/09/2018 21:32:13
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Been doing a bit, I'm ready to hinge the flaps, but unsure of myself, the flaps have square edges and droop via bottom hinges, supplied ones I don't like, and they're screwed into soft balsa.

Plan is to make fibre glass ones and slot the wing/flap to fit em, I will fit these over hinge line and as low as possible, but it will mean there's a gap, this going to be a problem or is it common on scale models ? ignore the mock up hinge it's for question only.hingg 001.jpghingg 002.jpghingg 004.jpg

hingg 003.jpg

Bob Cotsford14/09/2018 09:47:01
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Posted by john stones 1 on 28/08/2018 22:31:39:

Started to assemble it now I have the motor, wing has flaps, these are droop down with a hinge on the lower wing surface, can find no hard points to accept the screws and the hinges are poor plastic ones that look unfit for purpose. Any ideas for an alternative method ?hinges 006.jpg

hinges 008.jpg

John, what happens if you slide the hinges forward so that the part fitted on the flap comes up to the flap leading edge? Looking at the design of those hinges I'd expect them to be fitted so that the flap swung down under the wing as it lowered wiith a gap between the two. Have a poke for a hardpoint on the flap leading adge and an hinge width forward of the wing trailing edge.

john stones 115/09/2018 21:11:07
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Only finding they fitted balsa Bob, I'll leave it till last, getting on my wick.

What's the thinking with flaps re servo speed, do you folks put a slower speed in Tx ? any advantage to be had doing it ?

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