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Braddock, VC14/11/2013 13:10:08
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1632 forum posts
82 photos

What with one thing and another, I don't seem to be able to fit in a full building session and consequently models don't get made.

SoI remembered back 30 or 40 years to when I used to build as the title says, when I was working away from home.

I have the following kits to build, wot 4 classic, sig 1/5 scale cub, flair astro hog and so I' doing little and often.

The wot 4 is all glued together ( cant say framed up) and the wings need to be joined. I'll use finishing resin to make this join with glass tape but I'll take the opportunity to coat the inside and outside of the fuselage back to the c of g with finishing resin to fuel proof the plane. This'll mean waiting until the fuselage is sanded to its final shape.

Once the model is complete but un covered I'll set it aside and make a start on the sig and flair kits as I have two building boards and can crack on doing a bit on each until they, too, are ready to cover when I'll do all three in the same scheme.

I'll try and upload pics when I remember but I'm really pleased with progress with the wottie so far.

Rich too14/11/2013 13:46:16
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3020 forum posts
1070 photos

I know the feeling, I have been building a 58" Glens Models Extra for literally years!! At least 5 years I would say - I wont allow myself to start another until its done, I have only assembled and flown ARTF models in the meantime.

Rich

Braddock, VC14/11/2013 21:34:19
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1632 forum posts
82 photos

F

Wot 4 fuselage is dry now but I'll leave it overnight and rough sand it tomorrow, together with the tail feathers and wings.

I bought the abs and wire version of the kit (a) because it's nearly £17 cheaper and (b) because I have a perfectly good soldered up wire u/c from the mk 2 wottie that I decided to retire when I broke the tail off.

It is repairable but I'm not confident that after 30 + years the wood has its original strength as the fus inevitably takes a bit of a hammering. While I'm at it I may use the tailplane, fin and rudder off it, save a bit of sanding and they are in good nick. I also have a second set of u/c with skis fitted if we should get snow and a set of floats too but they need some work.

The original wing isn't too bad either but the servos are a bit wafty after all that time so I'll make up the new wing.I have a half dozen or so hitec digital servos plus some of their HD karbonite analogues, some more choices to make.

I've agonised long and hard about an engine, I have quite a selection to choose from including some quite potent 45s and 46s two strokes, plus an 82 saito but have decided to fit a low hours thunder tiger 42 GP simply because it has plain bearings and I can neglect it and not worry about bearing corrosion. It'll provide all the performance I need and, being some 3 or 4 ounces lighter than the bb engines, might even come close to providing similar vertical performance but I won't hold my breath.

Off up to tescos, wife fancies a bar of choccy and a glass of wine, me too. I'll upload some pix tomorrow am.

W

Biggles' Elder Brother - Moderator14/11/2013 21:38:16
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You know what they say Braddock, if you stick just one piece of wood in place each day you will eventually have an aeroplane - even if you were intending to build a boat! wink 2

BEB

Braddock, VC14/11/2013 22:11:36
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1632 forum posts
82 photos

BEB, I probably won't be flying until well into the new year so I'm quite happy to stooge along once piece at a time, perhaps my progress will provide an incentive for other modellers to do the same; models don't have to be built overnight.

I have found myself two new sites to fly from, both within a couple of miles from my front door and one has an asphalt or concrete runway and I'm allowed to fly from the control tower if I want but have to say that's not too bright an idea for several reasons.

The other site is quiet models only which is one of the reasons why I'm putting the TT 42 GP in the wottie as they are virtually inaudible with a 12x5 graupner on. (I don't have anything electrical other than a couple of foam gliders).

Funnily enough the owner of the latter site was a bit cagey until she found out that I had no electric models, apparently she's heard them and doesn't like the whine of the motors. I was convinced that I would have to use electric until that came up. Anyway she wants to have a trial in the new year (of the model flying) and all will be decided then. I have to give her plenty of notice as she wants her neighbours to "listen in" which I'm quite happy with. She actually insisted that this was a demonstration of what she intended to do which pleased me no end but there are political undertones that I'm aware of (something to do with ride-on lawnmowers and Ducati motorcycles) . The area is already designated for recreation so there are no planning problems. The other site too is designated for recreation.

There is actually quite a long saga to this latter site which is probably better if I don't relate.

Who knows, I may speed up construction rates!!!!!!

Braddock, VC19/11/2013 10:44:03
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1632 forum posts
82 photos

Wot4 fuse, wings and tailfeathers now rough sanded to shape, have to buy some really fine sandpaper to finish them off but before that I have to join the wings and use the surplus epoxy to reinforce the u/c mount and fuel proof the front half of the plane. Because of the fumes this probably won't happen until after the weekend which will give me plenty of time to mull over colour schemes.

Just a heads up on a previous post, apparently the lady's dogs went ballistic when her grandson flew an electric plane there hence her reluctance to entertain them.

I was up there on the weekend and I am having second thoughts with a wot4 basically as the field (about 200 metres by 250 metres) has enormous beech trees on 3 of the 4 boundary fences they must be at least 30m high and there is about a 50 foot rise to each of the 2 longitudinal boundaries from the flat (rugby pitch) in the centre - I know from bitter past experience how much I like landing planes in trees. The other boundary has the farm and access road against it.

BTW, the rugby pitch only gets used occasionally on Sunday mornings for practice and junior matches.

Biggles' Elder Brother - Moderator19/11/2013 14:20:51
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15748 forum posts
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It does sound a bit tight - and those trees are swines, they jump out to grab your model you know, don't let anyone convince you otherwise! wink 2

BEB

Braddock, VC19/11/2013 23:11:41
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1632 forum posts
82 photos

I'm starting to think that way too. I've flown at a number of fields with trees in and always manage to get at least one plane stuck there.

Spent tonight stripping out the fittings on the old wot4 mk 2, I can't bring myself to bin it even though the wood aft of the scarfe joint in the fus is soft as a babies bottom; to change it means a fairly large reconstruction and there has been significant collision/oil damage round the front end as well.

Anyway I got a nice engine mount plus all the t nuts and stainless bolts that held it together. Two 148 servos that were a recent addition plus a futaba switch and charge socket. On top of that the u/c mount and the wing mounting bolts. Dumped the phillips head servo screws though went over to the model fixings ones years ago.

The engine mount is drilled for the saito 82 and I'm tempted to pop that in the wottie but it also fits the 1/5 scale sig cub a treat with just a bit of the rocker cover poking out the bottom of the cowl and I'm not sure if the flair grey mounts are still available if I use this one on the wottie.

All in all a good night's salvage. I'll see if I can use the wing tomorrow. As I said previously the servos in there have been in since 1982 and the bearings are a bit worn (it was quite an expensive job to use two in 82, servos were 17 quid each then) anyway I've two 148s with broken casings so I may be able to swap them around iirc that the wing servos are 148s have a feeling they may not be though.

Braddock, VC21/11/2013 16:32:44
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1632 forum posts
82 photos

The wing on the mk2 kit built wot4 is completely different to the classic wing on the latest kit version, the chord is at least 1.375" less.

The servos were hitec 101s, one has the gears stripped. I have a couple of hitec 85 mgs which are virtually identical so I'll fit those. Looks like I'll have to repair the old one so I'll wrap the whole lot up in bubble wrap and pop it in the loft for something to do a bit at a time in the future. I'm quite pleased in a way that I've decided to repair it as It was a good and faithful servant for years. I'll just have to decide how much of the fuselage sheeting I'm going to have to crop back, ho hum.

Seraph21/11/2013 16:35:39
28 forum posts
10 photos

1.376" perhaps

Braddock, VC21/11/2013 17:53:15
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1632 forum posts
82 photos

It just looked better than 1 & 3/8" clever clogs.

Braddock, VC06/12/2013 14:47:21
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1632 forum posts
82 photos

Wing polished up with v fine grit w&d paper, I had a thought when I was doing it that the wing dowels, which are not the finest design feature CF came up with, could be improved in strength significantly by adding a 5" length of 6mm ply as a sort of forward wing joiner into which the wing dowels can seat if I drill through to the joiner and then through it. So I've decided to incorporate that, I could even insert some alloy tubes to pop the wing dowels in ( those who have built a kit wot4 will get my drift) I just hope when I do it that the rest of the model lasts as long as the potential life of the wing dowels!

I have to be honest and say I'm re-agonising about the engine choice, I have an old, hardly run sc 46. However as the wottie is one of my most favoured models (after Clancy's Lazy Bee) I might push the boat out and add a nice new shiny os 2 stroke or perhaps even one of those evolution 10 GX petroil ones, we'll see as I've always hankered after fitting a 42 GP in, decisions, decisions.

Edited By Braddock, VC on 06/12/2013 14:50:11

Edited By Braddock, VC on 06/12/2013 14:59:31

Edited By Braddock, VC on 06/12/2013 15:00:15

kevin b06/12/2013 15:16:23
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1661 forum posts
134 photos
Posted by Seraph on 21/11/2013 16:35:39:

1.376" perhaps

Isn't that nearly 3 1/2 cm ?

john stones 106/12/2013 15:58:06
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10586 forum posts
1480 photos

I think you'll find they are not actually tree's

they are ambush's crying 2

Braddock, VC06/12/2013 20:38:10
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1632 forum posts
82 photos

Inwoods have the mk 2 OS 46 Ax in at 102 quid and the 55ax at 119, I have a brand new irvine 46 and I was thinking I could fit it up with a weston uk throttle pipe, it's the same price as the one for the 42 GP and I could also buy one for the 160 fx I have in my xtrawot for the same money as a 55 ax for the two.

I have one on the yamada 45 2 stroke I have and it's the best thing since sliced bread.

Making up my mind over this issue is difficult.

Yes kevin it's about 3.5 cm I'll see if I can add a piccie showing the difference.

Braddock, VC06/12/2013 20:48:28
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1632 forum posts
82 photos

2013-12-06-417.jpg

Braddock, VC06/12/2013 20:49:42
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1632 forum posts
82 photos

Haven't fathomed out how to add text after adding pic but the mk 3 classic wing is superimposed over the mk2 wing here and the overlap can be clearly seen.

It's also evident the span of the mk3 is greater than the mk 2.

I wonder which wing was used for the artf?

Edited By Braddock, VC on 06/12/2013 20:51:41

Down Under06/12/2013 20:56:20
67 forum posts

Hi Brad

I am on the same wagon as you. Only, you're more disciplined than I. I have more projects on the go than I can poke a hobby knife at. And RCME keep publishing such appealing plans that I can't help myself. My must build list is about 20 models long.

Fortunately, the entrance to the garage is across the hall from the master bedroom. So I take any opportunity I can to work on my models. Most of the time its 1 piece of balsa at a time, and usually by stealth, so the other half doesn't get to cantankerous.

Braddock, VC06/12/2013 21:09:27
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1632 forum posts
82 photos

Down under, MOI? disciplined? You don't know the half of it, desperate is more like!!!!!

My current projects on hold are probably the same as yours. It just became clear if I kept on as I currently did, at 70 years of age, not a blurry one would be completed.

I have to dump some hobbies, particularly those that take up time so fishing, shooting, clarting with my lotus have been put on the backburner and some of the stuff is for sale and some is going to my sons in a pre-inheritance donation. I'm also giving up work, for the time being, to create more time.

Do I detect something in your life that isn't present in mine? Discipline, MASTER bedroom all in one e-mail , WOW.

Just joshing!!!!devil I'll just add a couple of pics of the engines that could adorn the front of my wottie.tt 91, saito 8, ys 45 tigershark 91 2s.

Braddock, VC06/12/2013 21:12:51
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1632 forum posts
82 photos

FWIW, I disposed of the TT 91, and the Tigershark 91, kept the minipipe on the tigershark and fitted it to an irvine 61. The ys sits there daring me to fit it to the wottie but it's too heavy, I mean look at it compared to a 91 2 stroke immediately above it....

BTW that's a weston throttle pipe, it was painted blue with solarlac about 5 years before the pic was taken and used to fly an ARC Jupiter round at terminal velocity, in a dive the prop would go well supersonic and had a great "cringing" effect on knowledgeable spectators................

Edited By Braddock, VC on 06/12/2013 21:23:20

Edited By Braddock, VC on 06/12/2013 21:25:33

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