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Post #77511, posted on 01-29-2021 GMT-5 hours    
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Tom Probert :
Yes - they should. The reduction in depth has also resulted in a reduction in length, too.

The pylons are all identical in length and join the engine at the exact same spot, so it may be the camera playing tricks.

In short of scratching new pylons, it's the best I could come up with...

Tom



In hindsight and if you were building another, would it be better to cut the pylons before attaching them?

Edit: I think the pylon angle is too steep, as well as too deep. I will attempt to correct the angle on mine. The engines are a bit too skinny as well, so I will have a go at doing something there. Not sure what. Luckily there is milliput.

George
Auckland
New Zealand

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Post #77524, posted on 02-01-2021 GMT-5 hours    
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gebbw :
Quote
Tom Probert :
Yes - they should. The reduction in depth has also resulted in a reduction in length, too.

The pylons are all identical in length and join the engine at the exact same spot, so it may be the camera playing tricks.

In short of scratching new pylons, it's the best I could come up with...

Tom



In hindsight and if you were building another, would it be better to cut the pylons before attaching them?

Edit: I think the pylon angle is too steep, as well as too deep. I will attempt to correct the angle on mine. The engines are a bit too skinny as well, so I will have a go at doing something there. Not sure what. Luckily there is milliput.



It would certainly have been a lot more straightforward to trim and amend the pylons before attaching them, yes. I agree that the pylon angle is indeed too steep - I haven't go the will to change it on mine but I'm sure others might have a go.

Interestingly, another builder who has been posting his progress on facebook has found that the sit of his engines is better - I still think they sit too low on his but they weren't as low as mine. I can't fathom how this could be, and the only conclusion I can come to is he has his wing dihedral set at a greater angle than I have. However, my wings fit as they were designed to the fuselage, as pictured earlier in this thread.

In short, the point I'm trying to make is don't take what I've found for gospel - there's every chance I've done something wrong on my build of the wings/engines to have this problem. I suppose the proof will be in what others find as they build the kit.

No more progress to report yet - work and family commitments have kept me away from the bench. I have filled the engine/pylon join and this needs sanding, which I hope to get done in the next day or two before tackling the remainder of the flightdeck and cockpit glazing.

Tom

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Post #77527, posted on 02-02-2021 GMT-5 hours    
Tom, good progress, even with your work and family stuff you're moving way faster than many of the rest of us! Couple questions on the engine height:

Do the wings flex at all when you move the wingtips? If so, maybe the wing root is flexing and the dihedral is thus less than it should be, even though it mounted fine. I had this problem building Heller 707s and a KC-135->707 kitbash, which I tried to fix with a scratch-built wingbox and carbon rod spars.

This might be a dumb question: when you did your test stand, did you prop up the gear legs with the wheels as well? If you use the gear legs instead of some other object, they get you less flex around the wing/body join, so they might mitigate the bending effect somewhat.

Just spitballing here. Keep up the good work!

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Post #77529, posted on 02-02-2021 GMT-5 hours    
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LH707 :
Tom, good progress, even with your work and family stuff you're moving way faster than many of the rest of us! Couple questions on the engine height:

Do the wings flex at all when you move the wingtips? If so, maybe the wing root is flexing and the dihedral is thus less than it should be, even though it mounted fine. I had this problem building Heller 707s and a KC-135->707 kitbash, which I tried to fix with a scratch-built wingbox and carbon rod spars.

This might be a dumb question: when you did your test stand, did you prop up the gear legs with the wheels as well? If you use the gear legs instead of some other object, they get you less flex around the wing/body join, so they might mitigate the bending effect somewhat.

Just spitballing here. Keep up the good work!



Some good thoughts here...

However the wings are rock solid and there's very little flex at the tips. The plastic is nice and thick and it holds its shape well so I don't think that's the problem.

I did indeed fit the gear legs and wheels, so was very confident about the stance when test fitting the engines.

Anyway, it's more or less sorted now so onwards and upawards!

Tom

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Post #77535, posted on 02-02-2021 GMT-5 hours    
Cool beans, looking forward to more updates!

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Post #77540, posted on 02-05-2021 GMT-5 hours    
Morning all...

Not a lot of progress to report this week due to work and family hindering bench-time, but a lovely set of decals arrived in the post:

Untitled by Thomas Probert, on Flickr

I was planning to build this using the kit-supplied Iberia decals, but having inspected them more closely I'm not convinced they will do the job properly and key features such as door outlines are missing - a real ball-ache to paint or source independently. Thankfully, Neil Gaunt (aka 'Mr Aircraft in Miniature') does numerous decal sets for his own DC-8 kits so I ordered a set for Delta Airlines which I think is an absolute classic of a scheme and suits the Mighty-8 so well!

The cheatline has the cabin windows integral, so I've been busy applying the glazing to the kit windows in preparation to fill these and use decals instead. I think the kit's cabin windows are a little off in shape†and the decals will also provide the aluminium frames so it's a win-win. I've also got the luxury of having cockpit window decals if the transparencies don't come good - I'm going to try and avoid this as in 1/72nd scale I think clear parts for the flightdeck work better, but we'll see how things go when I get to the cockpit glazing.†

Interestingly, another modeller and I have been conversing on a facebook thread, and he too is building the same kit although he is converting his to the longer -73 and is sources some CFM56s for his. We were chatting about the engine issue and he has found that his sit higher than mine did, which has puzzled me somewhat:

Untitled by Thomas Probert, on Flickr

In his picture (which I hope he doesn't mind me sharing)†you can see once the pylon is attached to the wing, there will be some ground-clearance. However, I think the engine will still sit too low when compared to the real thing. The only thing I can think of is that he has his wings attached at a greater angle of dihedral - however as you will have seen in my earlier posts I've attached the wings exactly as the kit was designed for them to attach which I think is reasonably accurate. Puzzled? Yep - me†too!

Also of interest is the fact he says the stabilisers were the same height on his kit unlike mine - but he attached the rear section on his after he had joined the main fuselage halves. Again I'm somewhat puzzled as you will see from my earlier pictures that an awful of care was taken to ensure the rear-most section joined the main fuselage halves as exactly as possible. I'm off to do some head-scratching and will be very interested to see if others building this have encountered the same problems that I have... or if it's just me being cack-handed!

All the best,

Tom†

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Post #77544, posted on 02-06-2021 GMT-5 hours    
An interesting further observation to share with those interested regarding the stabiliser issue I found. A fellow modeller, as mentioned above, said that his stabilisers were level in his kit so I asked him to send me a photo.†

I'm afraid I completely disagree with this claim - see for yourself:

Brian's DC-8 by Thomas Probert, on Flickr

The red lines are the true horizontal/vertical using the position of his wings as a datum point. The green line is the point on the elevators which is closest to the fuselage. The blue lines are the upper/lower sections of the stabs, and the yellow follow the line of the stabilisers and therefore should meet exactly on the centre point of the fuselage - as you can see this point is well off to the left in the image he sent me. I think his vertical stab is off to the left too...

His tail looks exactly like mine did - the right stab is higher than the left. I rest my case, at least for now...

Tom

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Post #77548, posted on 02-07-2021 GMT-5 hours    
The stabilisers in my kit are the same as yours, but I only notice it when looking from the rear. I'm not sure i will bother correcting mine. Another thing I think is not right is the stablisers are slightly too far back as well. I will correct that.

Keen to see more of your progress Tom, keep it coming. I am taking pictures of my build too and will post them in a new thread some time.

George
Auckland
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Post #77552, posted on 02-08-2021 GMT-5 hours    
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gebbw :
The stabilisers in my kit are the same as yours, but I only notice it when looking from the rear. I'm not sure i will bother correcting mine. Another thing I think is not right is the stablisers are slightly too far back as well. I will correct that.

Keen to see more of your progress Tom, keep it coming. I am taking pictures of my build too and will post them in a new thread some time.



Good man - I'm keen to see another's efforts so do share!

It's been a slow week for modelling, but a little more progress on the DC-8...

I've now committed to the Delta scheme using the AIM sheet so the windows needed filling. They fit quite well actually, and if one was so inclined I think they could be made to work well with a light sanding and a polish:

Untitled by Thomas Probert, on Flickr

There are plenty of windows spare, thankfully, as with no sills they fall in quite easily - this happened to me (four times) with no hope of retrieval so it now sounds like a baby's rattle!

Here are the windows after a lick of filler:

Untitled by Thomas Probert, on Flickr

Finally they've had a quick brush of flat white which didn't reveal any issues:

Untitled by Thomas Probert, on Flickr

Until next time,
Tom

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Post #77554, posted on 02-08-2021 GMT-5 hours    
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Tom Probert :
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gebbw :
The stabilisers in my kit are the same as yours, but I only notice it when looking from the rear. I'm not sure i will bother correcting mine. Another thing I think is not right is the stablisers are slightly too far back as well. I will correct that.

Keen to see more of your progress Tom, keep it coming. I am taking pictures of my build too and will post them in a new thread some time.



Good man - I'm keen to see another's efforts so do share!

It's been a slow week for modelling, but a little more progress on the DC-8...



George, please do add some pics, I like to read the build threads and learn how people solve problems as they go.

Tom, even your "slow week" is better than my fast week, so keep it up. You guys are definitely motivating me to keep going on my build.

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Post #77575, posted on 02-11-2021 GMT-5 hours    
Hello guys and gals,

Last night I began working on the cockpit. The kit's transparencies are a little cloudy on my example and in my humble opinion the cockpit windows are slightly off shape-wise so I have decided to see if I can improve the situation...

First job was to sand off the window outlines and get the basic shape a little more uniform in terms of dips and bumps:

Untitled by Thomas Probert, on Flickr

Next up was a lengthy polishing session with a buffing pad - these things work wonders!

Untitled by Thomas Probert, on Flickr

Test fit to the fuselage:

Untitled by Thomas Probert, on Flickr

Untitled by Thomas Probert, on Flickr

With some careful trimming/filing I've managed to improve the fit considerably - I now need to add the seats and yokes before attaching†the glazing and masking the shapes of the windows. All being well, I'll be able to keep the cockpit windows clear and won't have to use the AIM decal - something I was hoping to avoid in this†larger 1/72nd scale.

Until next time,

Tom

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Post #77581, posted on 02-12-2021 GMT-5 hours    
That windshield has come up nicely. What is the buffing pad you use? Agree with you that having clear cockpit windows is better, especially for this scale. Great work Tom.

George
Auckland
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Post #77583, posted on 02-12-2021 GMT-5 hours    
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gebbw :
That windshield has come up nicely. What is the buffing pad you use?



It's from a canopy polishing set I bought along with some Micro-plastic polish. However, my wife has exactly the same thing for her nails and are available from most shops that sell nail varnish and that sort of thing.

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Post #77623, posted on 02-16-2021 GMT-5 hours    
Howdy all,

A little more progress on the cockpit and glazing.†

I gave the seats a quick lick of dark grey and glued them into the flight deck along with the control columns. It wasn't worth going mad here as not a huge amount will be seen. I then lined the mating surfaces of the clear piece with a black marker to avoid the edges being visible, and glued it to the opening on the fuselage. Here, despite careful filing and test†fitting, a nasty lip was left on the upper join, marked by the arrow below:

50950998191_e9889122cc_o by Thomas Probert, on Flickr

So despite may careful sanding and polishing previously, there was no other option other than to give it good sanding to try to reduce this step before applying any filler:

Untitled by Thomas Probert, on Flickr

I then applied my trusty Milliput and then began a long session to blend the glazing in and bring the clear piece†back to being nice and clear:

Untitled by Thomas Probert, on Flickr

Getting there:

Untitled by Thomas Probert, on Flickr

Perfect:

Untitled by Thomas Probert, on Flickr

Using the AIM decal as a guide, I then set about making my own masks for the cockpit windows:

Untitled by Thomas Probert, on Flickr

Which, I think, has had the desired outcome:

Untitled by Thomas Probert, on Flickr

Untitled by Thomas Probert, on Flickr

Untitled by Thomas Probert, on Flickr

A couple of minor tweaks needed, but I'm quite happy with the look.

I've also just added the nose intakes, which will need a quick lick of filler:

Untitled by Thomas Probert, on Flickr

Until next time, all the best,

Tom

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Post #77626, posted on 02-17-2021 GMT-5 hours    
Excellent Tom. You've made things a whole lot easier for my build by knowing what to watch out for. I decided to correct the stablisers after quite a while examining my kit thanks to your observations! Can't wait to see this progress especially when you get to the painting stage.

George
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Post #77628, posted on 02-17-2021 GMT-5 hours    
Is it me or are the windows next to the middle one a bit too long?

So many planes, so little time ...

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Post #77629, posted on 02-17-2021 GMT-5 hours    
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gebbw :
Excellent Tom. You've made things a whole lot easier for my build by knowing what to watch out for. I decided to correct the stablisers after quite a while examining my kit thanks to your observations! Can't wait to see this progress especially when you get to the painting stage.



Paint isnít too long away now, so progress will slow significantly as the weather here is no good at all for paint. Still, spring is just around the corner...

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Post #77630, posted on 02-17-2021 GMT-5 hours    
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Laurent :
Is it me or are the windows next to the middle one a bit too long?




I think youíre right - Iíll need to do a few tweaks before committing to paint.

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Post #77646, posted on 02-21-2021 GMT-5 hours    
We've had the first glimpses of spring down here in Kent today so I've given the DC-8 a splash of primer:

DSC_0004 by Thomas Probert, on Flickr

DSC_0002 by Thomas Probert, on Flickr

DSC_0006 by Thomas Probert, on Flickr

There's a few minor blemishes to address, but overall it's come out ok!

If the weather continues to warm, I may be able to start in the main colours...

Tom

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Post #77663, posted on 02-23-2021 GMT-5 hours    
Good work! Which primer did you end up using?

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Post #77671, posted on 02-23-2021 GMT-5 hours    
Starting to look the piece Tom! I am way off the painting stage on mine, but then again I decided to go down the fiddly-bit road...

Have you test fitted your gear yet?

George
Auckland
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Post #77672, posted on 02-23-2021 GMT-5 hours    
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LH707 :
Good work! Which primer did you end up using?



I'm using Halfords automotive paints for this one out of a rattle can. Therefore, this is standard Halford's grey primer - it'll need a gentle rub down before top coats.

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Post #77673, posted on 02-23-2021 GMT-5 hours    
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gebbw :
Have you test fitted your gear yet?



Only when sorting the engines - however all seemed to be ok for the mains, with the nose gear being on the short side so I think I'll probably make my own.

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Post #77676, posted on 02-23-2021 GMT-5 hours    
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Tom Probert :
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LH707 :
Good work! Which primer did you end up using?



I'm using Halfords automotive paints for this one out of a rattle can. Therefore, this is standard Halford's grey primer - it'll need a gentle rub down before top coats.


God it, thanks.

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Post #77726, posted on 03-03-2021 GMT-5 hours    
This build is going to be moth-balled for the time being as the weather here in south-east England just isn't warm enough yet for spraying to commence. As I write this it's about 6 degrees and bucketing down, so until things improve I'm putting this in the loft. Hopefully, warmer and drier days are on their way...

In the meantime, I have an AIM DC-10 in 1/72nd scale I may dig out and continue with...

All the best,
Tom

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Post #77737, posted on 03-03-2021 GMT-5 hours    
Good work Tom as always. I know your situation, I have not done much further work on my build either. But look forward to seeing you pick this up again soon.

George
Auckland
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Post #77914, posted on 04-02-2021 GMT-5 hours    
Tom,

I can't wait to see the results when it finally warms up and you can get some paint and decals on her.

Kind regards,
Dutch

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Post #77929, posted on 04-04-2021 GMT-5 hours    
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Dutch :
Tom,

I can't wait to see the results when it finally warms up and you can get some paint and decals on her.

Kind regards,
Dutch



Hi Dutch,

Weíve had some warmer weather and Iíve actually got the corroguard sections on the wings done. Iím now starting work on the metal areas such as the rest of the wings and lower fuselage. However, cold weather is forecast for the next few days so no more progress likely.

Iím itching to get going again on this build but really donít want to ruin it by the painting process causing me headaches.

All the best,
Tom

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Post #78019, posted on 04-19-2021 GMT-5 hours    
Evening all,

There was a bit of delay with this build due to the need for good weather for outside spraying. I'm a big fan of the Halfords paint range as outlined above, but†you need warm, sunny and relatively windless days to get results with these paints - thankfully spring has sprung here in Kent and I've been busy getting the Mighty-8 painted.

Paints used were Halfords Aluminium as a base for the natural metal areas, and then Citroen Arctic Silver for the the slightly darker metal areas to offer a but of contrast. White was Appliance White which is my 'go to' for white finishes. The bright light in these pictures mean the varied metal finish isn't all that visible, but I can assure you it's there!

DSC_0099 by Thomas Probert, on Flickr

DSC_0101 by Thomas Probert, on Flickr

DSC_0104 by Thomas Probert, on Flickr

DSC_0105 by Thomas Probert, on Flickr

DSC_0110 by Thomas Probert, on Flickr

DSC_0107 by Thomas Probert, on Flickr

I'm going to fit the landing gear next and then make a start on the decals.

All the best,

Tom