a what if based on the American a-10 for '43.
https://www.sas1946.com/main/index.php?topic=24559.0http://ww2f.com/threads/heinkel-319-a-real-wunderwaffe.47215/

Development
Τhe Heinkel He-319 was undoubtedly the most advanced multi-role fighter to originate from the Third Reich during WW2. This advanced warplane, designed primarily as a night fighter, ruled the night skies over Germany in late 1945 and went on to play a decisive role in the formulation of night ground attack doctrine. The fighter originated from the highly ambitious Ρ.1081/44 RLM programme. The P.1081 specifications were extremely demanding, calling for unheard of performance for an aircraft of its era. The new fighter was designed to satisfy two roles: a primary night fighter (Nachtjäger) and a secondary night attack (Nachtschlacht) role. The large powerful airframe was designed around four of the brand new Jumo 012 turbojets that were developed from the well-known, albeit temperamental, 004Βs used in the Me-262. Thanks to this very advanced powerplant, the relatively heavy (41.000 lbs at full combat load, compared to 15,700 lbs of the 262) He-319 Warzenschwein, as the Ρ.1081 was christened, proved surprisingly nimble and capable even when carrying huge loads. While its top speed, at just over 540 mph, was not exceptional by 1945, it achieved this with full internal combat load and fuel. With full internal and external combat load it could still attain 490 mph and a ceiling of 47,000 ft. which made it a very capable interceptor even against high-flying Allied PR planes. The Warzenschwein’s unlikely advantage, however, was its maneuverability which gave it the edge even against single-engine fighters. Equally important was its survivability, thanks to its secondary role as a ground attack fighter which had endowed it with a robust frame and useful armour for the pilot and the main flight controls.
Armament
The Warzenschwein was extremely well-armed for its day. Its fixed armament included a single 3.7cm Rheinmetall Bordkanone BK 37 under the nose, with a huge, internal, 66-round magazine, used mainly to shoot down bombers and attack ground targets; two 2cm MG 151/20s in a ventral pack with 360 rounds for air-to-air combat and two quadruple 21cm RZ-65 rocket launchers in the wing roots used to demolish structures and attack large targets. Additional external armament included a quartet of Ruhrstahl Kramer Χ-4 guided missiles under the wings and various guided and unguided air-to-ground munitions. The defensive weapons suite was complemented by a virtual sting in the tail, a small, barbette-type turret with twin MG 151/15s linked to an intelligent targeting screen in the cockpit. This allowed the single pilot to continue to fly and aim the rear turret as if he were in a dogfight.
Sensors were not the most up-to-date as there was no room for the large dome of the new FuG 240 Berlin night radar, so the Warzenschwein relied on an improved Lichtenstein SN-2 (FuG 220), together with an advanced version of Naxos.
Powerplant
To protect the engines from ground fire, the four Jumo 012s blasting through twin tailplanes, were mounted on a dorsal pylon. The new engines proved not only powerful, producing more than three times the thrust of the 004Bs, but were also much more robust and safer to use, delivering maximum thrust at only 5300 rpm. They were also 15%more economical than the earlier 004Bs allowing the Warzenschwein the exceptional combat radius of over 950 miles on internal fuel and full weapons load and over 1,400 miles with external drop tanks.
RLM Nomenclature Type Max thrust Weight rpm
Jumo 109-004B Turbojet 8.8 kN (1984 lbf) 745 kg (1642 lb) 8700
Jumo 109-012 Turbojet 27.3 kN (6130 lbf) 2000 kg (4410 lb) 5300
General characteristics
Crew: 1
Length: 53 ft 4 in (16.26 m)
Wingspan: 57 ft 6 in (17.53 m)
Height: 14 ft 8 in (4.47 m)
Wing area: 506 sq ft (47.0 m2)
Airfoil: NACA 6716 root, NACA 6713 tip
Empty weight: 24,959 lb (11,321 kg)
Gross weight: 30,384 lb (13,782 kg)
CAS mission: 47,094 lb (21,361 kg)
Anti-armor mission: 42,071 lb (19,083 kg)
Max takeoff weight: 50,000 lb (22,700 kg) [200]
Fuel capacity: 11,000 lb (4,990 kg) internal
Powerplant: 2 × General Electric TF34-GE-100A turbofans, 9,065 lbf (40.32 kN) thrust each
Performance
Maximum speed: 381 kn (439 mph, 706 km/h) at sea level, clean[199]
Cruise speed: 300 kn (340 mph, 560 km/h)
Stall speed: 120 kn (138 mph, 220 km/h) at 30,000 lb (14,000 kg)[201]
Never exceed speed: 450 kn (518 mph, 833 km/h) at 5,000 ft (1,500 m) with 18 Mark 82 bombs[202][199]
Combat range: 220 nmi (250 mi, 400 km) CAS mission, 1.88 hour loiter at 5,000 ft (1,500 m), 10 min combat[a]
Ferry range: 2,240 nmi (2,580 mi, 4,150 km) with 50 knots (58 mph; 26 m/s) headwinds, 20 minutes reserve
Service ceiling: 45,000 ft (13,700 m)
Rate of climb: 6,000 ft/min (30 m/s)
Wing loading: 99 lb/sq ft (482 kg/m2)
Thrust/weight: 0.36
Armament
Guns: 1× 30 mm (1.18 in) GAU-8/A Avenger rotary cannon with 1,174 rounds
Hardpoints: 11 (8× under-wing and 3× under-fuselage pylon stations) with a capacity of 16,000 lb (7,260 kg), with provisions to carry combinations of:
Rockets:
4× LAU-61/LAU-68 rocket pods (each with 19×/7× Hydra 70 mm/APKWS[203] rockets, respectively)
6× LAU-131 rocket pods (each with 7× Hydra 70 rockets)[204][205]
Missiles:
2× AIM-9 Sidewinder air-to-air missiles for self-defense
6× AGM-65 Maverick air-to-surface missiles
Bombs:
Mark 80 series of unguided 'iron' bombs or
Mk 77 incendiary bombs or
BLU-1, BLU-27/B, CBU-20 Rockeye II, BL755[206] and CBU-52/58/71/87/89/97 cluster bombs or
Paveway series of Laser-guided bombs or
Joint Direct Attack Munition (JDAM) (A-10C)[207] or
Wind Corrected Munitions Dispenser
Other:
SUU-42A/A Flares/infrared decoys and chaff dispenser pod or
AN/ALQ-131 or AN/ALQ-184 ECM pods or
Lockheed Martin Sniper XR or Litening targeting pods or
2× 600 US gal (2,300 L) Sargent Fletcher drop tanks for increased range/loiter time.
Avionics
AN/AAS-35(V) Pave Penny laser tracker pod[208] (mounted beneath right side of cockpit) for use with Paveway LGBs (currently the Pave Penny is no longer in use[citation needed])
Head-up display (HUD)[31]
Anti-armor mission: 252 nmi (290 mi; 467 km) with sea-level penetration and exit, 30 min combat