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Rob de Bie

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About Rob de Bie

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    Tenax Sniffer (Open a window!)

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    The Netherlands

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  1. Nukes under NATO Thunderstreaks

    Jari, excellent, many thanks! It confims that the B28 could be mounted under a standard-looking inboard F-84F pylon. If anyone has more information on nukes under NATO F-84Fs, please let us know. For example, was that asymmetric configuration used by other countries too? Rob
  2. Nukes under NATO Thunderstreaks

    Over on Britmodeller there was a short thread on the F-84F in combination with the Mk 7 nuke. The poster asked also asked about the NATO countries. I consulted the book 'Jachtvliegers' by former Dutch 312 squadron F-84F pilot Steve Netto. It's the first Dutch book that openly stated there were (are) nukes at Volkel air base. The writer gives a six-page account of the Cuba crisis, during which he stood on nuclear alert with 4, 8 and then 12 Streaks. He reports several times that the weapon was a B28. That surprised me, I had always associated the Streak with the Mk 7. I never read about the combination of an F-84F with a B28, but considering his very serious tone, and the deep impression that it made on him, I don't think he would remember that wrong. Also, something had always puzzled me, but it starts to make some sense now. The Volkel-based 311 and 312 nuclear strike squadron Streaks mostly flew with an asymmetric drop tank configuration, always leaving the left inboard pylon free, obviously for the nuke. Here are two examples: But that empty pylon never was the type unique for the Mk7. So why would they do that? I'm starting to think now that the absent Mk 7 pylon indicates that indeed a different nuke was used. I guess the B28 could be mounted under a 'standard' pylon, since it's a lot smaller than the Mk7. Or to be more specific, maybe a pylon that looked like the standard fuel tank pylon, but wired for the nuke. The book 'Gestaag Gespannen' reports that 311 squadron became the first non-US strike squadron in 1960. This book reports that the weapon used was the Mk7, it does not mention the B28. It also has a photo of the last 312 squadron F-84Fs leaving Volkel for Eindhoven in 1965, appropriately in the 'Volkel' asymmetric fuel tank configuration. I also checked 'Thunderstreaks en Thunderflashes in Nederland', but as usual it is very vague on the subject of nuclear weapons. So we're talking about the 1960 to 1965 period specifically. I would guess the USAF used the Streak in the nuclear role up to roughly 1960, switching over the F-100. Other NATO countries got strike squadrons only after 1960 since 311 squadron was the first in 1960. Maybe that could explain the difference in the weapons used? Does anyone know more on this subject? Rob
  3. Looking for computer-aided magnifier

    Recently I took a simple and cheap USB camera apart, and to my surprise it had an adjustable focus inside. The lens above the image-sensing chip was threaded, and had quite a focus range. I can make it focus at maybe 10 mm distance, and read the text of tiny decals. For example the ones on the ailerons and flaps of this tiny UAV model. I was amazed, and it's great fun to play with. Maybe it works for your problem. Rob
  4. I'm doing a detailed drawing of the Pander Postjager from 1933. Details of the lower side of this aircraft are rather sketchy. For example, I cannot figure out the various hatches for control system access. But I do see a window under the fuselage. I think it is for the driftmeter, but I'm not 100% sure. The radio operator, seated behind the two pilots, had a driftmeter, that is all I know. He was seated on the left, and could lean to the right to view down the driftmeter. What I can deduce from very oblique photos, there's a window of roughly 250 x 200 mm (10 x 8 inch), on the right side of the centerline. My main question is: what kind of window in the fuselage bottom would a driftmeter from that era require. Does anyone know? Thanks in advance! Rob
  5. Smelly resin concern

    Older Verlinden resin had a distinctive gasoline-like smell, and there was nothing wrong with it, that's just how it came. Maybe it can be traced back to whether it was (is) a TDI or MDI-based polyurethane resin. How would you describe the odor? Rob
  6. Just for completeness, here are the Esci 335 gallon (top) and Italeri 275 gallon (bottom) 1/72 tanks. The Italeri tanks are slightly fatter, 9.5 mm diameter instead of 8.9 mm, or a 14% larger cross-section area (which is what you see). Rob
  7. MiG-29 9.12

    In 1992, I color checked MiG 29UB "80' at Damgarten air show. Damgarten was at that time an operational Russian air force base in the former East Germany. The MiG is pictured here: https://www.netairspace.com/photos/UNKNOWN/Russian_Federation_Air_Force/Mikoyan_Gurevich_MiG-29/Damgarten_Closed/photo_9096/ The camouflage was 36375 and 34233 (the flat version on 24233 on my fan deck). Dielectrics and radome were 26132. Landing gear legs and wheel well interior 36375. The wheels were a green color that could not be matched with an FS595B, it's roughly a mix between 34227 and 34138. 'My' 24233 and 'your' 34227 are very close on my FS fan deck, so I think these are the right colors for an early MiG29. Rob

    It's not a direct answer to your question, but I recently mixed the color of a MiG-25R from book photos. After five tries I ended up with Humbrol 2+47+221 in a 1:3:1 mix ratio. It resulted in a color close to RAL 5021 Wasserblau, I noted afterwards. Maybe it's of some use. Rob
  9. My first progress since 2014...1/48 have blue master

    Looks excellent! From time to time I continue the struggle with my Pegasus 1/72 kit. The most recent discovery is that the vertical tails are completely wrong. Rob
  10. You're right that the quantities are really small compared to professionals working with it day in day out. So I guess I'm safe :-) Rob
  11. Casting resin with overhang narrow shapes?

    Vacuum casting equipment has become a lot more affordable, at least for a simple set. Here's what a Dutch supplier offers, for example: https://www.formx.nl/tools/vacuming-and-pressure-equipment/index.php I use a polycarbonate vacuum desiccator too. You can buy these at lab supply companies, mine was ~75 euros. Rob
  12. Casting resin with overhang narrow shapes?

    I'm pretty sure all of these molds are one-piece, without a seam, otherwise vacuum casting does not work. So it's not a question of a smart seam line. I would guess they use some sort of filler pin, that is pulled out before demolding. This creates a smaller cross section of the mold part inside the exhaust so it can be pulled through the nozzle opening. The pin itself needs a hole, otherwise any entrapped air will eject the pin during the vacuum casting. Rob
  13. Last week I painted a small resin model with a fresh tin of Humbrol 18 Orange. As is pretty standard with modern Humbrol, it is fairly translucent, and I had to apply many coats (in one session) to get good coverage. But afterwards I noted that I can still see the resin colour peeping through. I have a small collection of Humbrol Authentic paints, that I got as a gift. Some of them lack a sticker on the lid, and instead they have been painted with the paint inside the tin. That makes it difficult to identify them properly, so I have no qualms using them. It seemed like an interesting experiment to base-coat a similar resin model with an orange Authentic colour, and then overpaint it later with modern Humbrol 18. The airbrushing experience of the orange Authentic colour was nothing less than amazing: the paint covered in one sweep with my airbrush! This was something I had never seen or experienced before. I was so baffled by the experience that I asked a house-painter about it. His main point was that the pigment in this old paint was likely a lead-based one, and that modern orange pigments were much less opaque. When I asked why the manufacturer wouldn't add more pigment to compensate, he said you can only go to a certain level before the paint properties (drying time, scratch resistance, glossiness, etc) start to suffer. Makes sense to me. So that would explain the differences in covering power of these old and modern paints. The 'but' part came to mind later: can I safely sand this model? Or is it likely that I will create lead-laden sanding dust? I will sand it wet of course. Rob
  14. Designing your own decals

    Here's my list with ~50 Alps custom printers: https://robdebie.home.xs4all.nl/models/decals.htm#custom Not all are active most likely, so you have to shop around a bit. Personally I'm very curious about the new printer of http://www.indycals.net/ that can do white too. 40$ for a Letter sheet, or 4$ per vertical inch. The owner prints his own decal line on this printer too. Rob
  15. Designing your own decals

    Thanks for the compliment! I spent a lot of hours on it, but I liked learning to understand that strange printer :-) Rob