Author Topic: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build  (Read 21006 times)

Offline lone modeller

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #75 on: October 30, 2023, 05:46:02 AM »
Excellent progress on both Ian. Your minor niggles about accuracy will not bother most viewers I am sure.

I was relieved to read that you had misread the palns concerning the bomb apature on the 9: I WILL feel better when in future I make similar mistakes!

Stephen.

Offline Tim Mixon

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #76 on: October 31, 2023, 09:28:09 PM »
Lovely detail work Ian. Both fuselages are really taking shape. 

Offline NigelR

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #77 on: November 01, 2023, 06:52:21 PM »
Fabulous attention to detail. These will be amazing when done.

Offline WD

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #78 on: November 03, 2023, 12:45:34 AM »
Some really nice work, far beyond what I'm capable of at this point.

Warren

Offline IanB

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #79 on: November 12, 2023, 10:45:02 PM »
Thanks Zac - I must admit, I'm tempted to do an Airfix with the original RAF engine as an RFC machine, but I have plenty of others in line.
Excellent progress on both Ian. Your minor niggles about accuracy will not bother most viewers I am sure.

I was relieved to read that you had misread the plans concerning the bomb aperture on the 9: I WILL feel better when in future I make similar mistakes!

Stephen.
It all adds to the fun, doesn't it!    Doesn't it?

Thanks to Tim, Nigel, and Warren for your feedback! Warren, it's only practice. You'd laugh your socks off if you saw pics of my builds when I came back to the hobby around 2011!

Unfortunately I couldn't make it to Telford this year, but that has meant more progress this last week, even though not as much as I'd hoped as I had to go to Dubai for 3 days.

If you are there, I hope you're all having a great time!

As mentioned previously I had to correct the access cutouts by the rudder post and add the tail skid apertures. For the 9 this wasn't a problem, I just filed out the end of the tail with a round jeweler's file then added a tiny piece of plastic stock to close it off. The 4 however needed new plastic. If you remember, I had to thin the tail as it was too deep. This meant the top part of the D section cutout was missing. Simple enough to fix, I just cut the rest off and glued on a piece of sprue. Once dry it was sanded down to the correct shape and then filed as per the 9.

Here's the 9:

Cut out filed and stock strip added



and sanded down



and the 4:

New plastic added and sanding to shape.



sanded, filed out, strip added, and finished.





The D shaped cutouts for the tail skid were drilled then filed out with a half round jeweler's file. I also re-drilled the holes on the 4 as they didn't match up from side to side.

Primer was then applied! Well, not really primer as such, I don't use it. But a coat of Tamiya flat white as a tell-tale coat to see where extra work was needed.





As expected, remedial work was required, but not as much as I had imagined. The 4 nose was the main area - upper and lower seams, as well as the left side where it was grafted on to the fuselage.
Other than that, some minor seam work on both and a final tidy up before......



I used my usual Mister Kit PC10 but for some reason it didn't spray well. Not too bad though so I left it overnight to harden before adding a second coat today which sprayed just fine! I'm running short of PC10 so I'll need to source another supplier as Mister Kit is now defunct.

For the 4 I used Vallejo paints as usual. I ordered a couple especially for this build, Ivory and Khaki. For some reason both are very thick. I've not used Model Colour before, only Model Air, and I've had no problem with those. Anyway, after I worked out how to thin it, it worked fine but I almost messed up big time! I had thinned the ivory but it would still only spray with the needle all the way open. I always mix my pant in the airbrush cup and what had happened was that I was still spraying improperly thinned paint. Up to the point when the properly thinned paint got to the tip, and I still had the needle pulled back - flooding the thing with paint! I muttered something along the lines of "oh bother" and quickly wiped it off with a paper towel. A quick LIGHT respray to remove wipe marks and when checked this morning it was fine!

Phew!

Today I gave the 9 a second coat and masked and sprayed the Khaki on the 4.











A few small touch ups needed on the edges of some of the areas which were cut out (9 radiator, the observers' decking, etc) but nothing major so happy with that!

Time for a beer then.
Thanks for looking in!


Ian

Offline Tim Mixon

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #80 on: November 14, 2023, 09:10:49 AM »
Ian, I am really impressed with your work on both these models. Your printed and scratch built parts look so natural under paint. Eagerly anticipating the next installment. 

Tim

Offline KiwiZac

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #81 on: November 14, 2023, 12:48:05 PM »
I can only echo what Tim said, particularly the excitement for the next post. Brilliant work and nice save with the paint!
Zac in NZ

Offline DaddyO

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #82 on: November 14, 2023, 06:35:38 PM »
Love how both are progressing Tim.  :D

Interesting to note that you prefer not to use primer  ??? Any special reason for this?

Found the same thing with model colour paints, they seem to be pretty thick out of the bottle (which is presumably to make them easier for brush painting?) As you say they dpray oaky when well thinned. Incidentally my favourite paints for spraying at the moment are the Scale 75 artists range (In tubes) squirt a bit in the cup mix with distilled water and off you go. Dry very smooth and no issues with clogging.

Paul
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Offline Tim Mixon

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #83 on: November 14, 2023, 09:17:05 PM »
Ian,
Just as Paul mentioned. The Vallejo Model Air paints are designed for airbrushing without the need for thinning. The Model Color line is designed for brush painting but may be thinned out to airbrush. My experience with Model Color is that it doesn’t bond well to the surface, especially metal surfaces. Be very careful when you mask over it and use a very low tac tape.  I have read but not confirmed that you can add a few drops of Future floor polish or Clear to help with adherence.

Tim

Offline PrzemoL

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #84 on: November 14, 2023, 10:28:20 PM »
You truly should be happy with the results. Great job all around!
Ash nazg durbatuluk, ash nazg gimbatul,
Ash nazg thrakatuluk, agh burzum-ishi krimpatul.

Offline NigelR

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #85 on: November 15, 2023, 12:01:39 AM »
Lovely work all round! You did well with the Vallejo Model Colour, the pigment is not as fine in that compared to Model Air so can be troublesome to spray even when thinned.....

Offline IanB

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #86 on: November 15, 2023, 01:40:11 AM »
Ian, I am really impressed with your work on both these models. Your printed and scratch built parts look so natural under paint. Eagerly anticipating the next installment. 

Tim

Much appreciated Tim, especially as I've seen some of your work  so that's quite a compliment!
I had no issues at all with adhesion. I used standard Tamiya tape for masking and had no problems when I removed it.

I can only echo what Tim said, particularly the excitement for the next post. Brilliant work and nice save with the paint!

Thanks Zac!

Love how both are progressing Tim.  :D

Interesting to note that you prefer not to use primer  ??? Any special reason for this?

Found the same thing with model colour paints, they seem to be pretty thick out of the bottle (which is presumably to make them easier for brush painting?) As you say they dpray oaky when well thinned. Incidentally my favourite paints for spraying at the moment are the Scale 75 artists range (In tubes) squirt a bit in the cup mix with distilled water and off you go. Dry very smooth and no issues with clogging.

Paul

To be honest I've never seen any need for primer. The only time I did use it (on the Airfix Roland) it was a disaster. I couldn't sand it as it was like a rubber glove. In the end I literally peeled it off! I don't wash the kit either.

I did, however, have a slight moment with the choice of colour for the 4. I know I bought specific colours for it but then I moved apartment and it all got packed together. I think I bought a green-brown for it, but I applied some if that to a test piece to compare and I think I prefer the khaki. Pics of surviving/restored aircraft show either brown or green or both depending on lighting and camera angle. Since the Datafile describes a mustard greenish khaki I'll stick with what I have and maybe darken it a little with a gloss coat.
I was not happy with the 9 either after closer examination, so I lightly sanded back some areas and resprayed it today.
Much happier with it now!

Ian


Offline IanB

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #87 on: November 19, 2023, 05:03:00 AM »
Further techniques have been practiced.

I have a silhouette cutter which I have not yet used, and I need to create some masks for both aircraft - the number 3 and bars for the 9, and the number 6 for the 4. I have therefore spent a few hours over the last couple of days trying to figure out how to make that happen. I imported copies of profiles for both aircraft so I could trace the details, and then cleaned the tracings up as some of the edges were not correct. I think I have them pretty much done now, but if anyone knows an easy way to create a border around a letter or number please shout! I tried reducing the size but that of course doesn't work, and I can't offset from a trace. I think I may have to draw freehand over the trace and then offset from each line separately to get what I want.

Anyway, here's what I have so far...



Thanks for looking in!


Ian

Offline IanB

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #88 on: November 25, 2023, 09:24:26 PM »
 In the end I gave up on the white border for the number 6 on the fuselage. Two reasons: I couldn't get the cutter to cut such a thin slither of mask, and also it can't be seen against the pale background anyway! I'm not sure why none of the profiles I've seen have the white border on the upper wing, where it would help visibility, but they don't so I'll stick with that!

On another note, I realised today that I haven't completed one single model this year, and these certainly won't be done by the end of December. 

Must do better next year!

As mentioned above, this last week or so has been spent getting the masking sorted and the fuselage markings painted. 

Here are the 2 masked up and ready to paint.



It took a while to get the masks straight, and even then I think one side of the 4 is very slightly off. The 9 was fairly straightforward.







The 4 then got a splash of colour





You can see on the second pic that the 6 has a very slight forward lean to it. It's staying like that! The photos also show the red much brighter than it really is due to the dark colour of the background.

I then had to start thinking about painting the cockpit padding and the straps that hold the upper decking on the 4. That is where my habit of "leave it until later" caught up with me.

I had noticed long ago that the rear strap was very indistinct and not well moulded, and had decided to replace it with a .25 x .5mm strip of Evergreen. The front strap wasn't there at all. Of course, they should have been added long ago, and certainly before I painted it!
Plonker.

Anyway, the decking between the cockpits was rubbed down and the strip was applied.



After repainting, I noticed that the paint on the left side was chipped and hadn't been sanded down properly, so it had to be rubbed down again. At the same time, I took the opportunity to reduce the thickness of the "straps" slightly by sanding them down.



It was then painted again!



That is much more representative of the correct shade of red. I used Tamiya Flat Red.

Today I finally got around to painting the coaming and the new straps.





I think that's about it for the fuselages for now. The next job will be to sort the wings out. I've already thinned the Pegasus ones and removed all the surface detail. They will need to be marked up and drilled for the struts and rigging holes, then masked and painted. I also need to add pins to mount them and attach the centre panel on the 9. A gravity tank will also be needed for the 4.

Noe of that will happen tomorrow as I have to work in the morning. The afternoon and evening are also spoken for as a friend offered me a free hospitality ticket for the F1 GP, which of course, I accepted!

Have a great weekend folks, and thanks for looking in!


Ian

Offline NigelR

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Re: Airfix DH4 with Blue Rider DH9 conversion, and Pegasus DH4 double build
« Reply #89 on: November 27, 2023, 07:39:39 PM »
Superb work, these are looking really good. Lovely attention to detail.

On another note, I realised today that I haven't completed one single model this year, and these certainly won't be done by the end of December.
That's a good reason for doing 1/32 - if you only build one a year, at least you have something quite big to show for it! ;)