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Veron Avro 504N

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Robert Parker02/01/2020 18:29:22
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937 forum posts
1212 photos

Hi Toni,

That's nice to hear about the flying. I have heard about the cylinders falling off which is a little disappointing. You built a lovely model back then.

Regards

Robert

Robert Parker19/01/2020 09:29:36
avatar
937 forum posts
1212 photos

Hi All,

Made a little more progress. I have adapted the lower wing to take the servos and the ailerons to take the linkages and continued with the covering.

dsc07852.jpg

Lower wing aileron connections epoxied in place

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Servo installation

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Fuselage covered, covering used Easycoat seconds, although sold as seconds I have not found any blemish or any wrinkles that don't disappear after heat has been applied and at 11 pounds for 5m very cost effective.

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Rudder on and pinned

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After 40 or so years in the box are these decals still going to stick???

That's all for now, next wing covering and we'll see if the stickers stick or not

That's all for now

Regards

Robert

Peter Miller19/01/2020 09:36:41
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10529 forum posts
1246 photos
10 articles

There are two liquids, Microsol and Microset

These make waterslide deacal sink right into the coveirn materials so that even the weave of Solartex shows through. They might help with you old decals.

When youapply them the decal wrinkles uolike a prune but then goes back down smoothly

Peter Miller19/01/2020 09:36:43
avatar
10529 forum posts
1246 photos
10 articles

There are two liquids, Microsol and Microset

These make waterslide deacal sink right into the coveirn materials so that even the weave of Solartex shows through. They might help with you old decals.

When youapply them the decal wrinkles uolike a prune but then goes back down smoothly

Tony Wright 419/01/2020 19:54:16
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2 forum posts
3 photos

Hello,check out Gordon Whitehead,s plan and article for the 504 on the outer zone site .Well worth a read.

Tony Wright.

Robert Parker20/01/2020 20:49:22
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937 forum posts
1212 photos

Peter, they are vinyl decals and they are sticking well so far but looking good.

Tony, thanks for that I enjoyed the read especially the true immelmann turn.

Regards

Robert

Robert Parker23/01/2020 20:43:51
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937 forum posts
1212 photos

Hi All,

Well the stickers have stuck as if they were made yesterday, pretty good for almost 40 years of age. Well I have been busy in these last few days and have done some of the jobs I've been putting off like making the interplane struts, the engine cowls and I have run-in the engine which sounds sweet, glad I went for a four stroke.

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Stickers done and the cockpit combing, made my own from electrical earth sheathing and slit down it's length and glued it in place and painted with Humbrol paint.

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A bit of detail for the office, just need to find a pilot now.

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The front half of the engine cowl. Having read the build article from 1978, the author commented about the cylinders dropping off. The instructions said to use pins from inside the cowl in to the balsa core of the cylinder ,but I went for slightly heavier duty using 20mm galvanised clout nails and in the inside using 1.5mm ply to reinforce.

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Perhaps a little over engineered

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All fitted just before a coat of paint and then the pushrods

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A there we have it a 7 cylinder radial, the OS does not look too out of place and I'm pleased with the result.

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The interplane struts, now there were a fiddle to do, bending the wire to exact length and although the plans / instructions say that they are all the same length, they are not, not by much even though I place a 1.5mm packer when fitting the clips in the wings a few moved not by much but enough.

That's all for now

Next I'll continue finishing off and then start the servo installation

Regards

Robert

Robert Parker24/01/2020 12:23:55
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937 forum posts
1212 photos

Hi All,

Just fitted the cowl / dummy enginesmiley

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Really pleased with the end result.

Regards

Robert

Edited By Robert Parker on 24/01/2020 12:24:20

McG 696924/01/2020 13:11:41
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2921 forum posts
1107 photos

Hi Robert,

It's been a while since I visited your build blog. blush

Been to busy concentrating on my Sabre Dog build, I'm afraid.

I really like the way your engine (OS?) integrates in between the 'dummy' cylinders. yes

Keep on moving, young man.

Cheers

Chris

Alan H24/01/2020 15:04:57
86 forum posts
2 photos

Nice job with the dummy engine

Toni Reynaud24/01/2020 15:21:00
avatar
411 forum posts
58 photos

Nice job with the cylinder mounting. You may wish to consider lining the inside with light fibreglass to reinforce the plastic moulding. I recall that that was the bit that tore/split with the vibration.

Robert Parker25/01/2020 08:41:23
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937 forum posts
1212 photos

Hi Chris, Yes, the OS does bend in nicely. I chose to use a four stroke for exactly that, the prototype used a .29 two stroke and did not fancy the large silencer sticking out the side.

I have been dropping in now and again with your sabre build and as always you build so neatly and your bench is tidy unlike mine.

Alan, thank you, It came out better than I had expected.

Toni, this did cross my mind but having had to rasp away some of the engine bearers to get the cowl to fit I'm going to give it a miss, might regret it later but I don't fancy the bearers failing either. I could always make a large cowl and it would look like a "K" version.

Regards

Robert

Robert Parker26/01/2020 17:52:19
avatar
937 forum posts
1212 photos

Hi All,

The Avro is now all but completed just waiting on a pilot and to sort the rigging wires (elastic thread).

All of the servos are now fitted, I left this until I balanced the model so I could move the servos but in the end I did not have to move them at all just changed the LiFe battery for Nimh battery (6v) for a nice nose down attitude. Closed loop for the rudder fitted along with the snake inner for the elevators and bit of fiddling and slight cursing for the throttle servo and the aileron servos fitted. Control throws adjusted to best guess on three rates, I have looked through the instructions and over the plans and there seems no mention of any throws for the rudder and elevator. As for the ailerons I have added more up than down and again set up three rates.

All up weight came out just over 6lbs or 2.7kg which is 1/2lb heavier than the review model back in 1978 most of the weight I guess would be from the iron-on covering instead of light weight tissue and the 40 4st motor instead of the .29 2st motor.

With a total wing area of 896 sq ins or 0.57sqm gives a wing loading of 15.01 oz/sqft with a stall speed of 19mph so a nice gentle flyer I hope

Just need to wait for the pilot, some decent weather for a photo shoot and the flying field to dry out a bit for the maiden.

That's all for now

Regards

Robert

Robert Parker01/02/2020 16:44:18
avatar
937 forum posts
1212 photos

Hi All,

Finished, all except the pilot and maiden flight.

Rigging was a bit of a pain to do and the interplane struts need some sort of retaining method. I was hoping that the rigging would hold them in place but no.

I managed to do some photos in the garden this afternoon.

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I thought the rigging wires were a bit thick but they are about right

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Position wanted

Just need a suitable pilot and some weather and maiden her.

What to build next....................

That's all for now, I'll keep you all posted when the maiden happens.

Regads

Robert

Jim Carss01/02/2020 17:32:47
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2077 forum posts
82 photos

Cracker job Robert, well done

yes

J D 801/02/2020 19:30:42
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1358 forum posts
78 photos

Like it, good luck with maiden.yes

David Davis01/02/2020 19:34:47
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3535 forum posts
642 photos

Superb job Robert. Best of luck with the maiden.

Broken Prop01/02/2020 19:54:06
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614 forum posts
1 photos

Lovely! A beautiful build that deserves to fly well.

Good luck Robert!

Piers Bowlan01/02/2020 21:12:14
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2005 forum posts
53 photos

Great looking model Robert, you must be very pleased with it. Looking forward to some in-flight photos.

There is the Veron plan available on Outerzone for those who are now inspired to build one!

Toni Reynaud02/02/2020 06:32:50
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411 forum posts
58 photos

That looks lovely. It should fly well.

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