Messerschmitt Bf 109K
Messerschmitt · Germany · first flew 1944 · fighter
The final production Bf 109 mark, the K-4 was the fastest, with a DB 605D and MW-50 water-methanol injection, identified by its taller rudder, retractable tail wheel, and standard Erla Haube canopy.
Recognition (WEFT)
| W — Wings | Low-mounted, tapered |
|---|---|
| E — Engines | 1 × piston, nose-mounted |
| F — Fuselage | 8.85 m fuselage |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Taller, broader rudder with a more squared top compared with the G's rudder — a clear silhouette change in profile view
- Retractable tail wheel (most K-4s) replaces the fixed tail wheel common on earlier marks — visible as a flush fairing when retracted
- Erla Haube clear-view canopy and cut-down rear spine standard from production, giving an unobstructed rearward view
Against the G: taller rudder, retractable tail wheel, and invariably the Erla Haube canopy. In silhouette the K's tail unit is visibly taller than the G's, even when both have the bubble-style glazing.
Specifications
- The Messerschmitt Bf 109K has a length of 8.85 m (29 ft).
- It has a wingspan of 9.92 m (33 ft).
- Its maximum speed is 727 km/h (452 mph).
- Typical crew: 1.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
Entering service in October 1944, the K-4 was intended to standardise production and restore the Bf 109's competitive edge over late-mark Spitfires and P-51Ds. Numbers were limited and it arrived too late to alter the air war's outcome.
Variants
K-4 was the primary production variant; the K-6 and K-14 were experimental with heavier armament.
Where you'll see it
No confirmed airworthy K-4 exists; the type is represented by a handful of museum airframes and the ongoing restoration projects in Germany and the USA. The taller rudder is the field mark even in photographs.
Related aircraft
- Messerschmitt Bf 109 G-10
- Messerschmitt Bf 109 K-4
- Messerschmitt Me 263
- Messerschmitt P.1101
- Arado E.580
- Bell XP-77
- Blohm & Voss BV 155
- Curtiss SC Seahawk
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