Oh yes, Dutch guns are a real mish-mash of conflicting everything. MO is mostly using info from A.J.Nuyt and Stellan Bojerud on Dutch gun IDs and has a nice cheat sheet from AJ. It looks like guns were Bofors-made Krupp after 1919 and transitioned to HIH Siderius in the late 20s. Siderius relied heavily on Rheinmetall technical input, but also had ex-Krupp employees, so their designs show a lot of Rheinmetallish and Kruppish influences. Wilton-Fijenoord took over Siderius’ corpse, parts, facilities, most people, and went back to Bofors tech support, so things like breeches, recoil cylinder positioning, and such, look different again. According to AJ, all the WF guns used barrels by Bofors. Here’s MO’s cheat sheet.
7,5cm L40 No 1 (Krupp): KL Coastal
7,5cm L40 No 2 (Krupp): ex- Noord-Brabant, KNIL coastal, Gouvernementsmarine vessels
7,5cm L40 No 3 (Krupp): KL Coastal, KNIL coastal, Gouvernementsmarine vessels
7,5cm L30 No 4 (Skoda): (ex) Z-class torpedoboats (2 each)
7,5cm L13 No 5 (Krupp): 1 on KVII, KL coastal
7,5 cm L?? s.auto No 1-3: ?
7,5 cm L55 s.auto No 4: 4 each on Java, Sumatra, 3 each on van Meerlant, Douwe Aukes, 4 on Pelikaan
7,5 cm L55 s.auto No 5: 1 on Pro Patria, 2 on Krakatau (replaced 1929 by s.auto No 4 (from Java and Sumatra?))
7,5cm L55 No 6 (Bofors-Krupp): 2 each on Van Ghent and Evertsen, 1 each on Flores, Soemba, total: 6
7,5cm L55 No 7 (Bofors-Krupp): 2 each on P Hein, Kortenaer, 1 each on V Galen, W de With, total: 6
7,5cm L55 No 8 (HIH Siderius): 1 each on Banckert and Van Nes, total: 2
7,5cm L55 No 9 (HIH Siderius): 2 each on Gouden Leeuw, Prins van Oranje, total: 4
Note-1, at least 17 pieces Krupp 7,5 cm L40 "No 2 and 3" were used on Gouvernementsmarine vessels in the East Indies. Or s. aut No 2 and 3?
Note-2, total number of Bofors-Krupp 7,5cm L55 guns delivered was 35 (Fransson). Some guns may have been used to replace older 7,5cm guns, like the Skodas. Also KNIL by 1940 possessed 25 7,5cm L55 guns, mostly Bofors (the IJA in 1942 captured 14 Bofors 7,5cms on Java alone).
Note-3, No 5 was a very short submarine gun model.
12cm L40 No 2 (Krupp): 1 on Braga,
12cm L40 No 3 (Krupp): 1 on Freijr, Hefring,
12cm L50 No 4 (Bofors-Krupp = Bofors M1924): 4 each on V Ghent, Evertsen, P Hein, Kortenaer, V Galen, W de With, total: 24
12cm L50 No 5 (HIH Siderius): 4 each on Banckert, Van Nes, total: 8
12cm L50 No 6 (Wilton-Fijenoord): 4 on van Kinsbergen
12cm L50 No 7 (Wilton-Fijenoord): 2 on van der Zaan
12cm L45 No 8 (Wilton-Fijenoord): 2x2 each for Callenburgh, Tj Hiddes, Is Sweers, v Almonde, 2x2 for K1-K7, 10x2 for auxiliary cruisers, total: 32
12cm L45 No 8 (Wilton-Fijenoord): 1 each for 4 Callenburgh destroyers, total 4
Note-1, Fransson says Bofors delivered 57 12cm pieces of which 23 twin mounts, while I reach 32 twins and 34 singles.
Note-2, 8 12cm Krupp No2 modernized by Wilton-Fijenoord.
Note-3, KNIL purchased 12cm L40 coastal guns from Bofors in the 1930s.
Note-4, Krupp 12cm No 1 (L40) serving as coastal with KL.
Note-5, 12cm No 8 was known with W-F as L46.
Note-6, all W-F 12cm had Bofors barrels.
15cm L50 No 6 (Krupp): 8 on Java (built for Koblenz fortress)
15cm L50 No 6 (Bofors-Krupp = Bofors M1924): 2 on Java, 10 on Sumatra
15cm L50 No 7 (Bofors-Krupp = Bofors M1925): 3 on FLores, Soemba
15cm L50 No 8 (HIH Siderius), 3 on JM van Nassau
15cm L50 No 9 (Wilton-Fijenoord): 3x2 on De Ruyter
15cm L50 No 10 (Wilton-Fijenoord): 1 on De Ruyter
15cm L50 No 11 (Wilton-Fijenoord): 3x2 on Tromp, 3x2 built for Van Heemskerk
15cm L53 No 12 (Wilton-Fijenoord): 10 each for Zeven Provincien and Eendracht (2 triple, two twins each).
Note-1, actual bore of 15cms was 14,91cm.
Note-2, Bofors delivered 35 15cm guns of which nine twin mountings (Fransson).
Note-3, KNIL also acquired 15cm guns from Bofors directly.
Note-4, actual calibre of No6 was 53.
Note-5, earlier Krupp 15cm models were No 1 (L35), Nos 2,3,4 and 5 (L40), all serving as coastal with KL or KNIL.
Note-6, all W-F 15cm had Bofors barrels.
Note-7, Werkspoor was involved with triple turret construction of 15cm No12.
Fransson is Stig A, Fransson, AB BOFORS KARLSKOGA 350 ÅR, Probus förlag HB, 1996
< Message edited by US87891 -- 6/19/2017 7:12:57 PM >