Author Topic: OEFFAG D.III "2" & "5" - 7th Kosciuszko Sqn M. Cooper & E. Corsi | Lukgraph 1/32  (Read 14420 times)

Offline Boch

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Hello, everyone!

After a long break from the workshop section, it's time to start a new build. It's been two years since my last workshop thread here, during which I completed six models as part of a larger project. Hopefully, I'll be able to share more details about it soon.

Some of my work has been partially showcased on my social media, which I launched in the meantime. If you're interested, feel free to follow Aces in Scale on Facebook and Instagram. Besides what I'll be posting here, you'll also find short videos covering different stages of the build, complementing the text-and-photo updates. But enough self-promotion - let's get to the real deal!

My passion for both modeling and aviation history has been increasingly focused on the Polish Border Wars of 1918-1921. Over the last two years, I've spent a great deal of time researching this period, expanding my library, and planning my future projects. Among them, I couldn't ignore one of the most famous Polish aviation units - the legendary 7th Kościuszko Squadron. I thought this would be a fantastic topic to kick off a new workshop thread.

Moreover, this is a great opportunity to finally tackle a fully 3D-printed resin kit. The Oeffag D.III, with its relatively simple construction, seems like a perfect choice for my first venture into this type of build. At the same time, I hope to shed light on some lesser-known facts about the lives and service of two key pilots.



The Project
As the title suggests, I will be building two models:
✈️ Oeffag D.III 253.218, side number "5", flown by Merian C. Cooper
✈️ Oeffag D.III (also from the 253 series), side number "2", most commonly flown by Edward C. Corsi

It's worth noting that during this period, aircraft were often shared among different pilots, making it difficult to assign a single "personal" aircraft to any one individual except for higher-ranking officers. Nevertheless, I chose these two pilots because both served as flight leaders within the squadron:
🔹 Cooper commanded the "Pułaski" Flight
🔹 Corsi led the "Kościuszko" Flight





The plan is to display both models on a single base, although that might change as the build progresses.

Workshop Content
This thread will be divided into two main sections:
1️⃣ The historical background, covering pilots, squadron operations, and period context
2️⃣ The actual model build step-by-step construction, detailing, and finishing

I'll be sharing:
📜 Archival photographs
🎨 Illustrations and color profiles
📸 Detailed work-in-progress photos

Research & References
To ensure accuracy, I've been diving deep into available literature on the 7th Kościuszko Squadron and aviation history from that era. Some key references include:

"War Wings over Galicia" - Andrzej Olejko
Articles by Tomasz Kopański, especially "The Last Flight of Cooper" from Kwartalnik Militaria
Interwar articles from "Przegląd Lotniczy" on air battles against Budyonny?s cavalry
"Albatros Fighters" - Windsock
"Die Albatros (Oeffag) - Jagdflugzeuge der k.u.k. Luftfahrtruppen" - Peter Schiemer
"Albatros D.III" - P. M. Grosz
"Albatros D.II & D.III Oeffag" - Petr Ahron Tesar
"Albatros D.I-D.III" - Dave Hooper
"German & Austro-Hungarian Aero Engines of WWI Vol. 1" - Michael Duesing

That's all for now. Looking forward to sharing more updates soon!

See you in the next installments.

Best regards,
Łukasz
« Last Edit: May 14, 2025, 05:43:18 PM by Boch »

Online DaddyO

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Excellent I have one of these on the shelf waiting for me to start on it.  :)

Couple of issues I noted were the rib tapes/stitching which isn't apparent in any AH aircraft photos I've seen and the cockpit layout and seat appear to be standard DIII fare. Looking forward to watching your progress

Paul
There cannot be a crisis today, my schedule is full

Offline RAGIII

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Great choice to build. I am Looking forward to your log!
RAGIII
"A man has to know his limitations": Harry Callahan

"Don't slop it on" Lynda Geisler

Offline Boch

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Thank you for the warm welcome. It's nice to be back. Thank you, gentlemen.

Excellent I have one of these on the shelf waiting for me to start on it.  :)

Couple of issues I noted were the rib tapes/stitching which isn't apparent in any AH aircraft photos I've seen and the cockpit layout and seat appear to be standard DIII fare. Looking forward to watching your progress

I don't know if I understand correctly. Do you mean the ribs on the wings? They're not visible in the photos? I've looked through my materials and they're clearly visible. Do you mean the ribs? The reinforcing tapes on the Austrian canvas with spiral patterns?

Regards
Lukasz

Offline AngryJazz

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Looking forward to your build on this! Your work is always stunning  :)
//Ben - @AngryJazz_Models

Online NigelR

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Looking forward to seeing what you do with this, I have admired your work of Facebook.

I don't know if I understand correctly. Do you mean the ribs on the wings? They're not visible in the photos? I've looked through my materials and they're clearly visible. Do you mean the ribs?
There were no rib tapes on Oeffag Albatroses. Koloman Mayrhofer established this during his research when building his replicas. This is why you cannot see rib tapes on the sworl fabric. So you will need to sand off all the rib tapes if you want an accurate representation of the actual aircraft. I've attached a close up of the wing on the replica built by Koloman Mayrhofer. There is a line of stitching on top of the rib stations but no rib tape. Herr Mayrhofer couldn't come to a specific conclusion as to why the factory did this. The quality of their workmanship was very high, so perhaps they felt rib tapes weren't needed or maybe it was just to save time and they felt the service life of the plane would be short so rib tapes weren't needed. If you want to be really accurate you need to sand off the rib tapes and then figure out some way of replicating the stitching. That's beyond me, I will just sand off the rib detail when I build mine.

There will be some "show through" of the ribs if the underside of the wings is covered in CDL but very little (if any) for the sworl-covered surfaces.

Are you going to correct the interior? This kit interior does not appear to be appropriate for a machine with buried guns. 

 

Online NigelR

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I did a bit of digging and found an original photo that shows the wings with the line of stitching visible (but no rib tapes).

I think the stitching would be hard to see on the sworl fabric.....


Offline Allan31

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Every morning I poke around here while enjoying my coffee and I never would think to learn that we can have canvas covered wings with no rib tapes.
The lurking knowledge here is amazing.....
Thanks,
Allan Buttrick

Youth, talent, hard work, and enthusiasm are no match for old age and treachery.

Offline Boch

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Looking forward to your build on this! Your work is always stunning  :)

Thank you  ;) make yourself comfortable with us and relax, I hope I'm up to the challenge.

Looking forward to seeing what you do with this, I have admired your work of Facebook.

I don't know if I understand correctly. Do you mean the ribs on the wings? They're not visible in the photos? I've looked through my materials and they're clearly visible. Do you mean the ribs?
There were no rib tapes on Oeffag Albatroses. Koloman Mayrhofer established this during his research when building his replicas. This is why you cannot see rib tapes on the sworl fabric. So you will need to sand off all the rib tapes if you want an accurate representation of the actual aircraft. I've attached a close up of the wing on the replica built by Koloman Mayrhofer. There is a line of stitching on top of the rib stations but no rib tape. Herr Mayrhofer couldn't come to a specific conclusion as to why the factory did this. The quality of their workmanship was very high, so perhaps they felt rib tapes weren't needed or maybe it was just to save time and they felt the service life of the plane would be short so rib tapes weren't needed. If you want to be really accurate you need to sand off the rib tapes and then figure out some way of replicating the stitching. That's beyond me, I will just sand off the rib detail when I build mine.

There will be some "show through" of the ribs if the underside of the wings is covered in CDL but very little (if any) for the sworl-covered surfaces.

Are you going to correct the interior? This kit interior does not appear to be appropriate for a machine with buried guns. 

 

I misunderstood you, I thought you were talking about the rib bulges, not the reinforcing tapes on the canvas. Either way, it's a very valuable tip, I don't actually remember seeing Oeffag with tapes. I have some better resolution photos at home, I'll also look through books and if I find an interesting photo, I'll definitely post it.

I'll think about how to recreate these stitches, I have a preliminary idea but it will require testing, but I think it could be a nice touch.

I'd also be happy to read about your comments regarding the interior. What's your plan for modification?

I did a bit of digging and found an original photo that shows the wings with the line of stitching visible (but no rib tapes).

I think the stitching would be hard to see on the sworl fabric.....



Well, would it be possible to notice the threads?

Every morning I poke around here while enjoying my coffee and I never would think to learn that we can have canvas covered wings with no rib tapes.
The lurking knowledge here is amazing.....

I totally agree hehe

Online NigelR

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I'd also be happy to read about your comments regarding the interior. What's your plan for modification?
At the very least I am going to correct the instrument panel so that it is accurate for a machine with buried guns. There are very clear photos in the Datafile of both styles of instrument panel. As for the rest of it, my plan is to put a pilot figure in there to hide the incorrect seat and save me from having to add more framing. I'm also concerned that the brass rods for the wings will be visible through the cockpit, a pilot figure will hide this. 

Offline Boch

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OEFFAG D.III ? THE STARS OF THE WORKSHOP



The time has come to introduce the key subject of this workshop ? the aircraft.

Both miniatures being built will represent the Austro-Hungarian Albatros D.III Oeffag, known in Poland simply as the Oeffag D.III. This was a licensed version of the German Albatros D.III, manufactured in Austria. The two models I am working on correspond to the final production version of this fighter, designated as series 253.

Development of the Oeffag D.III

The origins of this aircraft trace back to the Albatros D.II, which was the first to be produced in the Austro-Hungarian Empire by the Oeffag company. From that point on, the two allied powers took slightly different paths in fighter development. The Germans, maintaining similar engine power, focused on reducing the aircraft?s weight. Meanwhile, the Austrians continuously reinforced the airframe while also developing their own Austro-Daimler engines. As a result, the final version of the Oeffag D.III, the series 253, achieved an impressive 225 hp.

In this way, the "student" surpassed the "master" ? the Austrian Oeffag D.III outperformed the German Albatros, even its later D.Va variant. It quickly became the Austro-Hungarian Empire?s best fighter, proving its effectiveness in combat. During the Great War, it was flown by the monarchy?s top aces, such as Godwin Brumowski (35 victories), Benno Fiala (26 victories), and Frank Linke-Crawford (27 victories).

Polish Pilots on the Oeffag D.III

Many Polish pilots served in the Austro-Hungarian Air Service, flying the Oeffag D.III:

Flik 3/J: Stefan Stec (7 victories, though only 3 confirmed), Stanisław Tomicki (killed in combat against Camels of No. 45 Squadron), Michał Solski, Franciszek Peter (6 victories, an Austrian who considered himself Polish).
Flik 61/J: Antoni Skiślewicz, Henryk Skoczdopole (shot down in combat against Spads), Eugeniusz Roland (an important figure in Polish interwar aviation).
Flik 9/J: Stanisław Bogusz.
Flik 41/J: Maryan Gaweł, Henryk Szeliga.
Flik 42/J: Zygmunt Kostrzewski, Jan Ryba.
Flik 68/J: Kajetan Kosiński (shot down by Canadian ace Gerald Alfred Birks).
Flik 48: Wiktor Zimmerman, likely the first Polish pilot to fly the Oeffag.

The Oeffag D.III in Poland



After regaining independence, Poland inherited a substantial amount of aircraft from its former occupiers. However, most of these planes were outdated or in poor condition. The urgent shortage of fighters forced Poland to seek aircraft from various sources. One such source was the former Austro-Hungarian aviation industry, where Poland had established contacts. The collapsed monarchy was in desperate need of funds, which enabled the signing of a contract for 38 Oeffag D.III series 253 fighters and 67 spare engines.

The main beneficiary of this transaction was the 7th Fighter Squadron "Tadeusz Kościuszko", followed later by the 13th Fighter Squadron. The first fighters arrived in the 7th Squadron in July 1919. From autumn 1919 to spring 1920, the squadron was entirely equipped with Oeffag D.III fighters, a rare feat among Polish units. The availability of serviceable aircraft allowed the squadron to conduct combat operations for over six months without significant interruptions.

Starting in April 1920, the unit began receiving Italian Ansaldo A.1 Balilla fighters, which gradually replaced the worn-out Oeffags. However, both aircraft types remained in service until the ceasefire in October 1920.

Squadron Colors and Markings

The squadron was divided into two flights:

"Pułaski" Flight ? aircraft with red-painted noses.
"Kościuszko" Flight ? aircraft with blue-painted noses.

However, photos suggest that some Oeffags flew without painted engine covers.

The Stars of My Workshop ? Oeffag D.III "5" and "2"

➡ Oeffag D.III 253.218, fuselage number "5"

Flown by Capt. Merian C. Cooper.
This was Cooper?s second Oeffag, as his first was destroyed during an airshow celebrating the anniversary of Lw?w?s liberation.
Green fuselage, wings covered in Austrian "swirl" camouflage, red nose ("Pułaski" Flight), later with a white chevron for better visibility.
Underside of the wings in natural fabric color, squadron emblem on the fuselage, and the number "5" repeated on the upper and lower wings.
Initially had uncovered wheels, later fitted with wheel covers.



Oeffag D.III 253, fuselage number "2"

Flown by Capt. Edmund C. Corsi, leader of the "Kościuszko" Flight.
Fuselage left in natural plywood color, wings identical to "5".
Number "2" repeated on the wings, squadron emblem on the fuselage, wheels without covers.
Metallic engine covers and reinforcements.



What Period Am I Representing?

The models I am building depict these aircraft as they appeared in May and June 1920, when they were deployed to Kyiv as part of a detached flight tasked with covering air raids on Dnieper River crossings. Soon after, both aircraft met their fate ? but that is a story for future workshop updates.



During the hot summer days, pilots removed the engine covers, altering the appearance of the aircraft ? a detail I will include in my models.

Historical Sources

Profiles and information are drawn from:

Tomasz J. Kopański, "7 Eskadra Myśliwska im. Tadeusza Kościuszki 1918-1921"
Tomasz J. Kopański, "Ostatni lot bojowy kapitana Coopera"
Peter Schiemer, "Die Albatros (Oeffag) ? Jagdflugzeuge der k.u.k. Luftfahrtruppen"
Tomasz Goworek, "Pierwsze samoloty myśliwskie lotnictwa polskiego"
In the upcoming parts of this workshop, we will take a closer look at the fate of these aircraft and their pilots.

That?s all for today ? until next time!

Best regards,
Lukasz

Offline Boch

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First Cuts

I always try to plan the early stages of a build carefully, step by step, to avoid surprises. The first focus is on the cockpit?after an initial assessment, I decided to modify the instrument panel and the pilot's seat. Additionally, I sketched out the layout of gauges, controls, and control cables to ensure everything makes sense.



The Oeffag D.III in Polish service had its machine guns mounted lower, below the cylinder line, to reduce the risk of fuel ignition during firing. The kit represents this variant, but the instrument panel is shaped like the one used in aircraft with higher-mounted guns. This means some modifications are needed I'll have to cut out a section and add a brass rod according to reference materials.





The first components are now in hand. I've cut one fuselage from the sprues and divided them between the two models. The fit looks promising, so I'm hopeful that assembling everything won't cause too many issues.



For the cockpit, I've prepared a set of details from Taurus, including switches, gauges, a starter magneto, and a pulsometer. I'll also be using instrument dials from a Yahu panel designed for the Albatros D.V. Wiring will be made from various wires and elastic rigging lines.



The overall detail is really impressive. On close-ups, some minor artifacts are visible, but I think it's all about having the right mindset when working on a model. Expectations should align with technological limitations, so let's zoom in and take a closer look.



That's it for today - until next time!

Lukasz
« Last Edit: March 23, 2025, 05:42:57 PM by Boch »

Offline Kamil Zoszak

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your posts are incredibly written. you have provided a lot of knowledge in them. it makes me very happy. I am waiting for the effects of the construction

Offline Boch

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your posts are incredibly written. you have provided a lot of knowledge in them. it makes me very happy. I am waiting for the effects of the construction

Thank you Kamil,

You must forgive me for the long introduction, but I like to have everything in order, it makes work easier, and for you reading. I promise that soon there will be more modeling and less planning. Of course there will also be a story about both pilots.

Regards
Lukasz

Online NigelR

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It's good to see you making the corrections to the interior. It's a pity that Lukgraph got this so wrong, especially as the information about the interior is so readily available.