Hallo this topic about the Bf 109 k variants only.
Updated 2/22/2026
Right now Germany have only one bf 109 k-4 in game how ever there was more bf 109 k built some built and some other claimed to be built !
If you have books talks about Bf 109 k variants feel free to post would be nice to learn more about them !
Bf 109 k variants :
yap
K Series "Kurfürst "
K-4 -The K series was outwardly similar to the late production G series, but there were substantial internal differences with more use of wood in non-structural components and changes in the cockpit and equipment layout. The K series reintroduced a fully retracting tailwheel but this was sometimes fixed in the down position. Small panels to fully cover the wheels when retracted in flight were fitted. All the K series seem to have been fitted with the “type 110” cowling without gun blisters. The engine was a DB605DB/DC with MW 50 water/methanol injection. The armament was an MK108 30mm hub cannon and two 15mm MG151 cannons on top of the engine. All the K series used the Erla cockpit canopy and the wooden tail. The full range of “Rustsatz” kits for additional armament could be fitted and the underwing gondolas with MG151/20 cannons seems to have been commonly fitted. About 1,700 examples of the K-4 were produced.
K-4/AS - Listed in one source as using the DB605AS engine with larger supercharger, but only used on the first few aircraft off the production line as the DB605DB/DC would have given even better performance. Other sources do not mention such a version.
K-4/R2 - Tactical reconnaissance aircraft with Rb 50/30 camera in the rear fuselage. Produced but may never have been used operationally.
K-4/R6 - All-weather fighter and night fighter with autopilot and the Fug 125 “Hermine” homing receiver.
K-6 - The armament was increased; the hub cannon was MK 108 30mm and two additional MK 108 30mm cannons were mounted inside the wings with an alternate armament of 20mm MG151/20 cannons in the wings if required. Over-the-engine armament reverted to two 13mm machine guns. One prototype is known to have been produced and documents hint at several more being tested but the type never saw service.
K-8 - Projected version with the DB605L two-stage engine and an armament of three MK 108 30mm cannons, one mounted in the engine and the other two mounted internally in the wings. No machine guns were carried. Seems to have never been built, not even as a prototype.
K-14 - Possibly the last production version Bf109 to have entered service, the K-14 was said to be powered by the two-stage DB605L (1,700 hp) driving a four-bladed propeller and carry an armament of a single 30mm hub cannon and two 13 mm machine guns. Two are reported to have been operational briefly at the end of the war, although this is disputed and many sources say the K-14 was never produced.
On the drawing boards, the K-14 was to be the last of the Bf-109 lineage produced in Germany. It would have used a DB-605L engine and had two 30mm Mk-108 cannons in the wings. There was talk of one or two being delivered to JG-52 before the end of the war but it is doubtful and probably a clerical error
The Bf 109 k-6 was built and used mk 103 gun which could be useful against ground targets but it’s slower than the bf 109 k-4 because it’s more heavy !!???
could be wrong and was only for the not built Bf 109 K-10
The “MK 103M” ??!!
A specialized, modified version with a reduced-profile barrel—the MK 103M—was developed to fit into the engine mount (Motorkanone) of various fighters,
The Bf 109 K-14 was suggested on the old forums
Art/images :
Found Extra info !
Extra pages :
The Bf 109 K with the DB 605 L has been always controversial, starting from the old myth of two of such variant serving in II/JG 52.
At some point, the engine was considered in a theoretical K-8 or K-10 variant. This is from a folder titled Weiterentwicklung Bf 109 (undated, but most likely from first half 44), also published in some Griehl book
The TLR KTB has a memo over a meeting on 3/4.10.44, where they saw as pretty easy to install three (!) DB 605 Ls on 109 K for experimental purposes in December. Nothing is known of this task, which sounds a bit like wishful thinking, however the T-2 report F-IR-6-RE Survey of Messerschmitt Factory and Functions Oberammergau mentions a mockup DB 605 L found in Oberammergau, so at some point it was more or less seriously considered.
From JaPo book there is a pair of interesting bits:
- A former Avia employee, Mr Jaroslav Prchal, describing the fitting of two-stage superchargers on standard DB 605 Ds. The description seems legit (i.e. detailed enough), but I’ve never seen original documents for such modification. And actually it would have been more useful for the DB 605D to port the Dralldrossel from the 605 L rather than the supercharger…
- The history described in Prien’s JG 53 book, where a Bf 109 K-4 “improved from engine to cockpit” was offered to Julius Meimberg by a DB engineer, and crashed with Ofhr. Severin at the controls. In JaPo book, the improved engine part automatically qualifies it as a K-14 candidate, however we know this machine (W.Nr. 331466) was part of the airframe peformance enhancement program in Memmingen as testing point no. 51 (Truppenaktion, Leistungssteigerung 109 K or better called “lets try to fix the terrible surface finish from factories located in forests with KZ slave workforce”), so that improved part probably refers to the engine cover and not the engine itself.
Polls:
- Yes
- No
- Yes to Bf 109 K-6
- Yes to Bf 109 k-14 (could be fake)
- Nien for Bf 109 k-14
- No
- None should be added
Thanks for reading !
