Me Bf 109 G "Gustav" Variants
- G-0 (Pre-production aircraft, powered by a DB 601E engine)
- G-1 (Pressurized fighter, powered by a DB 605A engine)
- G-1/R2 (Reconnaissance fighter)
- G-1/U2 (High-altitude fighter with GM-1)
- G-2 (Light fighter)
- G-2/R1 (Long-range Fighter-bomber or JaboRei, with 2 × 300 L/80 US gal underwing drop tanks, 500 kg/1,100 lb bomb under fuselage, extended second tail wheel, only prototype)
- G-2/R2 (Reconnaissance fighter)
- G-2 trop (Tropicalized fighter)
- G-3 (Pressurized fighter, as G-1 with FuG 16 VHF radio; 50 built)
- G-4 (Fighter)
- G-4/R2 (Reconnaissance fighter)
- G-4/R3 (Long-range reconnaissance fighter, with 2 × 300 L/80 US gal underwing droptanks)
- G-4 trop (Tropicalized fighter)
- G-4/U3 (Reconnaissance fighter)
- G-4y (Command fighter)
- G-5 (Pressurized fighter)
- G-5/U2 (High-altitude fighter with GM-1 boost)
- G-5/U2/R2 (High-altitude reconnaissance fighter with GM-1 boost)
- G-5/AS (High-altitude fighter with DB 605AS engine)
- G-5y (Command fighter)
- G-6 (Light fighter)
- G-6/R2 (Reconnaissance fighter, with MW 50)
- G-6/R3 (Long-range reconnaissance fighter, with 2 × 300 L/80 US gal underwing droptanks)
- G-6 trop (Tropicalized fighter)
- G-6/U2 (Fitted with GM-1)
- G-6/U3 (Reconnaissance fighter)
- G-6/U4 (As G-6 but with 30 mm/1.18 in MK 108 Motorkanone engine cannon)
- G-6y (Command fighter)
- G-6/AS (High-altitude fighter with DB 605AS engine)
- G-6/ASy (High-altitude command fighter)
- G-6N (Night fighter, usually with Rüstsatz VI (two underwing MG 151/20 cannons) and sometimes with FuG 350Z Naxos)
- G-6/U4 N (as G-6N but with 30 mm/1.18 in MK 108 Motorkanone engine cannon)
- G-8 (Dedicated reconnaissance version based on the G-6.)
- G-10 (Light fighter with DB605DM or DB/DC engine)
- G-10/R2 (Reconnaissance fighter)
- G-10/R6 (Bad-weather fighter with PKS 12 autopilot)
- G-10/U4 (As G-10 but with 30 mm/1.18 in MK 108 Motorkanone engine cannon)
- G-12 (Two-seat trainer version of the Bf 109)
- G-14 (Fighter; standardized late-production G-6; DB 605AM engine, MW 50 boost)
- G-14/AS (High-altitude fighter with DB 605ASM engine, MW 50 boost)
- G-14/ASy (High-altitude command fighter)
- G-14y (command fighter)
- G-14/U4 (As G-14, but with 30 mm/1.18 in MK 108 Motorkanone engine cannon)
Rüstsatz and Umrüst-bausatz (Umbau)
The base subtypes could be equipped with Rüstsatz add-on standard field kits; in practice this meant hanging on some sort of additional equipment like droptanks, bombs or cannons to standard attachment points, present on all production aircraft. Aircraft could be modified in the factory with Umrüst-bausatz (Umbau) conversion kits or by adding extra equipment, designated as Rüstzustand, to convert standard airframes for special roles – a reconnaissance- or bad-weather fighter, for example. Unlike the Rüstsatz field-kits, these modifications were permanent.
The Rüstsatz kits were designated by the letter "R" and a Roman numeral. Rüstsatz kits did not alter the aircraft's designation, so a Bf 109 G-6 with Rüstsatz II (50 kg/110 lb bombs) remained designated as 'Bf 109 G-6', and not 'G-6/R2' – the G-6/R2 was a reconnaissance fighter with MW 50, as suggested by most publications. The Umrüst-Bausatz, Umbau, orRüstzustand were identified with either an "/R" or "/U" suffix and an Arabic number, e.g. Bf 109 G-10/U4.
Common Rüstsatz kits: Bf 109G:
Common Umrüst-Bausatz (Umbau) numbers:
The Rüstsatz kits were designated by the letter "R" and a Roman numeral. Rüstsatz kits did not alter the aircraft's designation, so a Bf 109 G-6 with Rüstsatz II (50 kg/110 lb bombs) remained designated as 'Bf 109 G-6', and not 'G-6/R2' – the G-6/R2 was a reconnaissance fighter with MW 50, as suggested by most publications. The Umrüst-Bausatz, Umbau, orRüstzustand were identified with either an "/R" or "/U" suffix and an Arabic number, e.g. Bf 109 G-10/U4.
Common Rüstsatz kits: Bf 109G:
- R I (ETC 501/IX b bomb rack under the fuselage, fusing equipment for an SC 250 or SD 250 type 250 kg (550 lb) bomb)
- R II (ETC 50/VIII d bomb rack under the fuselage, fusing equipment, for four SC 50 type 50 kg (110 lb) bombs)
- R III (Schloß 503A-1 rack for one fuselage drop tank (300 L/80 US gal))
- R IV (two 30 mm (1.18 in) Rheinmetall-Borsig MK 108 underwing gunpods)
- R VI (two 20 mm Mauser MG 151/20 underwing gunpods with 135 rpg)
- R VII (Peilrufanlage)
Common Umrüst-Bausatz (Umbau) numbers:
- U1 (Messerschmitt P6 reversible-pitch propeller to be used as air brake, only prototypes)
- U2 (GM-1 boost, during 1944 several hundred converted to MW-50 boost)
- U3 (Reconnaissance conversion, in autumn 1943 G-6/U3 adopted as G-8 production variant)
- U4 (30 mm (1.18 in) MK 108 Motorkanone engine-mounted cannon)