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Building Brian Taylors Cessna 120

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Dwain Dibley.14/04/2019 16:31:07
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1265 forum posts
1254 photos

Wallace has piloted a few of my planes, and has never ever, spilt his tea. surprise

I have just added the front top formers 2 and 3, 3 is the dashboard, so I took a copy to make the panel on.

I also added the firewall/Motor mount and built in the right thrust. More side and down can be added with washers or wedges later if needed. Plenty of room in there for battery and ESC.

Next job is top sheeting as I keep biffing the formers.

D.D.

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Edited By Dwain Dibley. on 14/04/2019 16:36:48

Dwain Dibley.14/04/2019 21:21:01
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1265 forum posts
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Last coupla jobs for today.........I sheeted the front of the fuselage and cut the hole in former 3 bigger to get the battery through. I test fitted the cowl, its quite a nice tight fit......I hate to see great big gaps between the fuselage and the cowl, so I may add some wood.

D.D.

The hole needed looking into..............................

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Dwain Dibley.15/04/2019 20:09:56
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1265 forum posts
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OK Guys.....Since I need to get the snakes in, I have made up the tail feathers. I have sanded them to shape as per the plan and let in the hinges. The plan also calls for the fin and tail plane trailing edges to be scolloped out to take the rudder and elevators, I will do this later.

I have added the corrugations, made from 1/16th sheet and simply glued on. They will show through the covering. The short one near the top is to allow for the tail light cover.

I added a scale like rudder trim tab, it is hinged but will not move.

I have to make a double rudder horn out of ply, this will be let in near the bottom of the rudder.

D.D.

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Dwain Dibley.15/04/2019 22:23:22
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1265 forum posts
1254 photos

All done.........Snakes tomorrow. I have to decide whether to go with an elevator horn or solder a piece of metal to the elevator joiner. ?? Horn is simpler regards access.

D.D.

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McG 696916/04/2019 08:59:02
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2482 forum posts
976 photos

Great progress so far, DD.

I'm wondering if Wallace is a converted heli pilot?

IIRC, in an aeroplane the 'driver' - aka the PIC - is sitting in the left seat... ?

Cheers,

Chris

Dwain Dibley.16/04/2019 16:19:22
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1265 forum posts
1254 photos

Thanks McG, I will get him to scoot over......wink

I got the snakes/Control rods in this morning, crazily one outer was sufficient, but I don't think the inner will make two.

As I said, luckily, they more or less followed the formers and very little had to added in the way of bracing.

I sculpted out the tail area to allow for the profile and incidence of the tail plane. At first glance you might think you can just glue the tailplane on but, if you study the plan you can see it angles down slightly to the front and has a symmetrical profile.

D.D.

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Nicely crossed.

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Neat Exit.

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Yummy......For the Coffee breaks.

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I am quite pleased with the t/p seat. The tail wheel ply cover will be altered to match the angle of the tail wheel support.

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She is starting to look like something now, this is my favourite part of any build. Fuselage sheeting next.

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Dwain Dibley.16/04/2019 16:30:13
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1265 forum posts
1254 photos

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McG 696916/04/2019 17:26:16
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2482 forum posts
976 photos

... had a good chuckle, Dwain... wink

... the 'cheese' is OK, thx Wallace... but I just hope those fancy tea cakes are filled with genuine British orange marmelade... surprise

Cheers

Chris

Dwain Dibley.16/04/2019 19:51:06
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1265 forum posts
1254 photos

It's Raspberry.....LOL

Some of the parts have been duplicated by Sarik, not a problem, but it did have me at it, trying to figure out where they went. In the end .........Not needed.. I thought maybe Sarik had added the rear Dihedral braces in ply.........?, but I made them out of 1/8th Lite Ply, instead of Balsa as per the plan.

All the bits for the centre section are ready to be assembled now, I want to do this next as it will help set up former C3, which supports the wing at the rear. Plus I will be able to line up the wing retaining bolt brackets.

D.D.

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Parts.

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Dry fit.

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This bit will line up C3 and both wing fixings.

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Edited By Dwain Dibley. on 16/04/2019 19:53:05

Edited By Dwain Dibley. on 16/04/2019 19:55:54

Dwain Dibley.17/04/2019 13:28:40
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1265 forum posts
1254 photos

So this morning I glued the centre section up and made sure it fitted the fuselage, I had to adjust the angle of the dowel holes so the wing sat down properly.

I put the angles on the leading and trailing edges to take the 1/32nd ply roof, added the top and bottom wing bolt fixings.

I had to use a piece of 1/8th lite ply to get them level, so the bolt will find its nut without a faff. I think I will put a tube in to make it even better.

D.D.

The rest of the trailing edge will made up the the same profile as the wing fixing bracket, you can see this on the plan.

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With the lid on.

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I glued the lite ply spacer in with aliphatic, and when the wing fixing nut is lined up I will reinforce that too. The author of the instructions was worried about strength here and he moved the fixings into the cabin, but I can't see the advantage of that, maybe others can ?

I also reinforced the back of the hole that passes through C3 with 1/32nd ply.

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In Position.

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With the lid on again, taped down to see the curves.

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Edited By Dwain Dibley. on 17/04/2019 13:37:39

Dwain Dibley.17/04/2019 16:10:03
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1265 forum posts
1254 photos

Some more fiddly bits Boys.

D.D.

I found an old heli tail shaft that was a fit for the wing bolt and reamed out the ID to go over the captive nut.

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Like so.

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Cut to length with the trusty pipe cutter. Everything in line, glued and reinforced.

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Tidied up the tail wheel ply mounts, I think it looks better.

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Dwain Dibley.17/04/2019 18:12:10
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1265 forum posts
1254 photos

Decided to get the hatch magnets in, as that is another little job out of the way. A bit of careful measuring and it all worked out OK. I can pick the fuselage up with the hatch now. I always add a belt and braces catch made from a servo arm screwed into a ply block.

D.D.

The view thru the work shop window. I can see Clee Hills, although the pic says otherwise,

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Belt and Braces.

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Dwain Dibley.17/04/2019 21:38:56
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1265 forum posts
1254 photos

The last job for tonight Guys.............. the roof is on.

D.D.

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fly-navy18/04/2019 11:34:25
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392 forum posts
11 photos

Looking nice Stevie, might be an idea to check balance before sticking tail feathers on as you could put some holes in them if it's tail heavy.

How ya keeping buddy.

Dwain Dibley.18/04/2019 17:27:37
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1265 forum posts
1254 photos

Johnny...............How you doing mate, hope you are keeping well. I will follow your sage advice. smiley

I had orders from the Missus today, so I had to paint the walls in the kitchen this morning. They are all sparkly now, so I was able to get on with the real work....wink

I have sheeted the top of the fuselage, I did it in 4 pieces, It can be done in 3, but I don't like to waste Wood. So I only used one 4" sheet of 3/16th, plus a bit from the scrap bin (tiny triangle at the tail end) ........Well chuffed.

It took a fair bit of wetting, bending, and extreme patience........teeth, but I think the result is quite good. The pic was taken after sanding and tidying up both ends.

I attached the pre cut sheet ( triangles, 50 mm down to 18 mm) to the existing balsa sides, allowing generously for the curves at each end. Then copious amounts of H2O,and bending and gluing. Lots of pins and cursing, so no pics of the procedure, couldn't let go of the job !!!. So just the end result.

D.D.

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Looking like a Cessna......

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Edited By Dwain Dibley. on 18/04/2019 17:30:10

Martian18/04/2019 18:19:49
2173 forum posts
1058 photos

Looking really good

Dwain Dibley.18/04/2019 18:40:45
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1265 forum posts
1254 photos

Thanks Martian smiley I hope you are well Matey.

By the way, I ordered an Irvine .40 sized Dural undercarriage today, with a view to cutting it in half to make it wider....It is the correct height to the axles, but it is deeper than the gap I have made in the model by 3 mm. LOL

Plus I got a new 10 ch Rx (last one) for under £20 Sussex Models.

I heartRadiolink

But it says 9 Ch on the case I hear you cry........................It's all to do with the S.Bus capability apparently.

All good fun.

D.D.

maurice northcott18/04/2019 19:34:29
88 forum posts
63 photos

Keep it coming DD, BT would be proud of you

Edited By maurice northcott on 18/04/2019 19:35:22

Dwain Dibley.19/04/2019 18:36:28
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1265 forum posts
1254 photos

Well today the orders were from My Daughter, to get her room painted, so in between coats I made this, whilst looking out at this.

D.D

Still misty over Clee Hills, but a Cracking day all the same.

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Checking all the bits.

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I used the existing holes for the servo leads.

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Then I made some blocks for the servo screws.

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Nice and snug.

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I then discovered I had put the servo directly in line with the strut fixing, should not be too much of a trauma.

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I made two, to make sure they were handed, just in case.

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Wing construction, I like making wings but it goes too quickly.

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Told you so................

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Aileron construction took some thought but in the end I used the laser cut sheets as a template to make 5 riblets.

Watch out for the tapered tip.

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All sheeted up, don't forget to add internal blocks for hinge fixings.I don't know whether to make some ply horns or use commercial ones. ??

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McG 696919/04/2019 20:22:46
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2482 forum posts
976 photos

... PCB glass fiber horns, please Dwain.

Your '120' deserves it. smiley

... and don't get to 'poetic' regarding those Clee Hills... wink

Cheers

Chris

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