Encyclopædia Wingardiana

G1 (1936): The original Grünjacke, later dubbed G1, entered service with a 750 hp engine, featured an open cockpit, and a 20mm cannon and two 7.92mm machine guns for onboard weapons, clustered around the nose.

G2 (late 1939): The first overhaul of the design did away with many of the disadvantages of the original. It implemented an enclosed full-visibility cockpit and provided upgrades in the form of a 1,000 hp engine and two 12.7mm machine guns built into the wings, to replace the lower calibre ones.

G3 (mid-1942): Besides the expected powerplant improvement (1,250 hp), the G3 revision sought to enhance the potency of the Grünjacke's single cannon, employing the new Krauser FK41 platform and its 30mm calibre.

G4 (late 1943): Represented the second major overhaul of the aircraft. It integrated an all-new streamlined airframe for higher speeds and range, plus a single-piece bubble canopy and an efficient 1,500 hp engine. The weapons configuration was revamped as well, and now comprised two 20mm cannons mounted in the engine cowling and four 12.7mm machine guns in the wings.

G5 (1946): The final variant of the Grünjacke maintained its predecessor's armament and received primarily a substantial power increase in the form of the Falken Sturmvogel 1,800 hp engine, in addition to minor improvements to its aerodynamic qualities.

Crew: 1 pilot

Length: 13.1 m (43 ft)

Wingspan: 14 m (46 ft), folded 6 m (20 ft)

Height: 4.77 m (15 ft 8 in)

Empty weight: 7,250 kg (15,984 lb)

Max. takeoff weight: 11,921 kg (26,281 lb)

Powerplant: 1 × Falken Doppelmäher turboprop engine, 4,000 hp (2,983 kW)

Maximum speed: 600 km/h (373 mph) up to 3,000 m (10,000 ft)

Range: 1,520 km (944 mi, 821 nmi)

Service ceiling: 7,600 m (25,000 ft)

Guns: 4 × 20mm Krauser BK45-2 cannon, mounted in the wings

Other: combination of bombs, torpedoes, mine dispensers, unguided rockets, and gun pods