An anderer Stelle angekündigt, hier mehr zum letzten What-if-Großprojekt: der (fiktiven) Hü 324. Dies ist kein Luft '46-Werk im engeren Sinne, da es kein theoretisches Vorbild gibt, aber das Modell gehört zum Genre.
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by
dizzyfugu, on Flickr
Entstanden ist das Ding spontan, als ich in einem Buch über sovietische Militärluftfahrt mehr über die Ilyuschin Il-28 las, bzw. Bilder sah. Die Linien von dem Ding sind so "retro", da ließ sich was draus machen - allerdings kein Jet-Bomber, sondern "was anderes". Ich wollte nicht nur einfach deutsche Hoheitszeichen draufpappen, sondern was Plausibles auf die Räder stellen. Als mir eine Freund ein komplette Cockpit einer Ju 188 anbot (er hat drei Bausätze für einen Ju 488-Eigenbau verwurstet...), hat es dann geklickt.
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by
dizzyfugu, on Flickr
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by
dizzyfugu, on Flickr
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by
dizzyfugu, on Flickr
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by
dizzyfugu, on Flickr
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by
dizzyfugu, on Flickr
Inspiration waren mehrere deutsche Bomberprojekte, etwa die Ju 288, aber auch Arado E 560/2 und E 560/7 und die BMW-Schnellbomberprojekte I & II. Von letzteren kam die Idee, daraus einen Turboprop-Bomber zu machen, was sich dank der massiven Triebwerksgondeln der Il-28 einfach umsetzen ließ.
Zusammen gekommen sind:
* Il-28 von Trumpeter, 1:72:
Rumpf, Tragflächen, Triebwerke, Fahrwerksbeine
* Ju 188 von Itarei, 1:72
Bugkanzel und Teile des Interieurs
* Tu-20 VEB Plasticart, 1:100:
Propeller und deren Aufnahmen, Barbetten auf/unter Rumpf
* B-25 von Italeri, 1:72
Komplettes Leitwerk
* Messerschmitt P.1099B von Revell, 1:72
Heck-Barbette, Hauptfahrwerksräder
Zusammenbau war recht einfach, bis auf die Tatsache, dass der Trumpeter-Bausatz zwar gut detailliert ist, aber kuam zusammen passt. Da war VIEL Spachtel vonnöten. Auch der JU 188-Bug brauchte mehr Aufmerksamkeit als gedacht, denn er ist doch 4-5mm schmaler als der Il-28-Rumpf, zumal die Ju rechteckig, die Ilyuschin aber kreisrund im Durchmesser ist...
1:72 BMW-Hütter Hü 324A-2 (Whif/Luft '46/kit bashing) - WIP by
dizzyfugu, on Flickr
1:72 BMW-Hütter Hü 324A-2 (Whif/Luft '46/kit bashing) - WIP by
dizzyfugu, on Flickr
Im Detail wurde aber einiges verändert, etwa die Cockpit-Ausstattung ohne den Ju 188 Drehturm, dafür aber zahlreiche Periskope für die ferngesteuerten Barbetten, ein komplett neuer Bugfahrwerksschacht musste gescratcht werden, und beim Umbau kam mir dann noch die Idee, einen Kinndrehturm zu integrieren, denn mit der Verteidigung nach vorne wäre es sonst eher mau gewesen (stammt übrigens von einer Matchbox-B-17).
1:72 BMW-Hütter Hü 324A-2 (Whif/Luft '46/kit bashing) - WIP by
dizzyfugu, on Flickr
Der Anstrich und die Markierungen orientieren sich an realen Vorbildern - das Schema (RLM 76/75/22) stammt von einer He 177, die Kennung ist zusammengepuzzelt und fiktiv, wenn auch den Kennungsrichtlinien entsprechend (F3 ist der Code für das fiktive KG 210, "E [rot] V" ist die individuelle Kennung, wobei der rote Buchstabe mit dem V als Kontroll-Code für eine Flugzeug der 11. Staffel steht).
Alles (wie üblich) von Hand mit dem Pinsel gemacht, zum Altern gab es einen Hauch schwarzer Tusche und etwas Trockenbemalung, auf dem Schwarz sind Panel-Linien mit verdünntem Dunkelgrau betont, um die Kiste etwas interessanter aussehen zu lassen.
1:72 BMW-Hütter Hü 324A-2 (Whif/Luft '46/kit bashing) - WIP by
dizzyfugu, on Flickr
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by
dizzyfugu, on Flickr
Die Story:The Hütter Hü 324 was the final development stage of BMW's 'Schnellbomber II' project, which had been designed around two mighty BMW 109-028 turboprops. These innovative engines had been developed since February 1941, but did not receive fullest attention due to the more promising jet engines. Anyway, it soon became clear that no jet engine with the potential to drive a bomber-sized aircraft - considering both performance and fuel consumption - would be available on short notice. Consequently, the BMW 028 received more attention from the RLM from 1943 on. Biggest pressure came from the fact that several obsolete types like the He 111 or Do 217 had to be replaced, and the ill-fated and complicated He 177 was another candidate with little future potential, since four-engined variants had been rejected. Additionally, the promising and ambitious Ju 288 had been stillborn, and a wide gap for a tactical medium bomber opned in the Luftwaffe arsenal.
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by dizzyfugu, on Flickr
In may 1943, new requirements for a medium bomber were concretised. Main objective was to design a fast, twin-engined bomber, primarily intended for horizontal bombing, which would be able to carry a 3.000 kilograms (6.600 lbs) payload at 800 kilometres per hour in a 1.500km (900 ml) radius. The plane had to be fast and to operate at great heights, limiting the threat of interception.
Since many major design bureaus’ resources were bound, Ulrich W. Hütter, an Austro-German engineer and university professor got involved in the RLM project and BMW's design team which had been working on appropriate designs. In July 1943, Hütter moved to the Research Institute of the Graf Zeppelin works (FGZ) convened in Ruit near Stuttgart, and as head of the engineering department he was also involved in the development of manned missiles, underwater towing systems and the Hü 211 high altitude interceptor/reconnaissance plane.
Under Ulrich W. Hütter and his brother, Wolfgang Hütter, BMW's original and highly innovative (if not over-ambitious) Schnellbomber designs gave way to a more conservative layout: the so-called BMW-Hütter Hü 324. The plane was conventional in layout, with high, unswept laminar profile wings and a high twin tail. The engines were carried in nacelles slung directly under the wings. The nose wheel retracted rearwards, while the main wheels retracted forwards into the engine nacelles, rotating 90°, and laying flat under the engines. The crew of four (pilot, co-pilot/bombardier, navigator/radar operator and gunner/radio operator) were accommodated in a compact, pressurised "glass house" cockpit section – a popular design and morale element in Luftwaffe bomber and reconnaissance aircraft of that era.
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by dizzyfugu, on Flickr
Construction of the first prototype started in February 1945, and while the aircraft cell made good progress towards the hardware stage, the development suffered a serious setback in March when BMW admitted that the 109-028 turboprop engine would not be ready in time. It took until August to arrive, and the prototype did not fly until 6 November 1945.
Initial flight test of the four A-0 pre-production samples of the Hü 324 went surprisingly well. Stability and vibration problems with the aircraft were noted, though. One major problem was that the front glas elements were prone to crack at high speeds, and it took a while to trace the troubole source back to the engines and sort these problems out. Among others, contraprops were fitted to counter the vibration problems, the engines' power output had to be reduced by more than 500 WPS and the tail fins had to be re-designed.
Another innovative feature of this bomber was the “Elbegast” ground-looking navigation radar system, which allowed identification of targets on the ground for night and all-weather bombing. It was placed in a shallow radome behind the front wheel. Performance-wise, the system was comparable to the USAAF’s H2X radar, and similarly compact. Overall, the Hü 324 showed much promise and a convincing performance, was easy to build and maintain, and it was immediately taken to service.
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by dizzyfugu, on Flickr
Despite the relatively high speed and agility for a plane of its size, the Hü 324 bore massive defensive armament: the original equipment of the A-1 variant comprised two remotely operated FDL 131Z turrets in dorsal (just behind the cockpit) and ventral (behind the bomb bay) position with 2× 13 mm MG 131 machine guns each, plus an additional, unmanned tail barbette with a single 20mm canon. All these guns were aimed by the gunner through a sighting station at the rear of the cockpit, effectively covering the rear hemisphere of the bomber.
After first operational experience, this defence was beefed up with another remotely-controlled barbette with 2× 13 mm MG 131 machine guns under the cockpit, firing forwards. The reason was similar to the introduction of the chin-mounted gun turret in the B-17G: the plane was rather vulnerable to frontal attacks. In a secondary use, the chin guns could be used for strafing ground targets. This update was at first called /R1, but was later incorporated into series production, under the designation A-2.
Effectively, almost 4.500kg ordnance could be carried in- and externally, normally limited to 3.000kg in the bomb bay in order to keep the wings clean and reduce drag, for a high cruising speed. While simple iron bombs and aerial mines were the Hü 324's main payload, provisions were made to carry guided weapons like against small/heavily fortified targets. Several Rüstsätze (accessory packs) were developed, and the aircraft in service received an "/Rx" suffix to their designation, e. g. the R2 Rüstsatz for Fritz X bomb guidance or the R3 set for rocket-propelled Hs 293 bombs.
Trials were even carried out with a semi-recessed Fieseler Fi 103 missile, better known as the V1 flying bomb, hung under the bomber's belly and in an enlarged bomb bay, under deletion of the ventral barbette.
1:72 BMW-Hütter Hü 324A-2/R2; "F3+EV", XI./KG210 Deutsche Luftwaffe, Châteaudrun, April 1946 (Whif/Luft '46/kit bashing) by dizzyfugu, on Flickr
The Hü 324 bomber proved to be an elusive target for the RAF day and night fighters, especially at height. After initial attacks at low level, where fast fighters like the Hawker Tempest or DH Mosquito night fighters were the biggest threat, tactics were quickly changed. Approaching at great height and speed, bombing was conducted from medium altitudes of 10,000 to 15,000 feet (3,000 to 4,600 m). The Hü 324 proved very successful, striking against a variety of targets, including bridges and radar sites along the British coast line, as well as ships on the North Sea.
From medium altitude, the Hü 324 A-2 proved to be a highly accurate bomber – thanks to its "Elbegast" radar system which also allowed the planes to act as pathfinders for older types or fast bombers with less accurate equipment like the Ar 232, Ju 388 or Me 410. Loss rates were far lower than in the early, low-level days, with the Hü 324 stated by the RLM as having the lowest loss rate in the European Theatre of Operations at less than 0.8 %.
BMW-Hütter Ha 324A-2, general characteristics: [/u]
Crew: 4
Length: 18.58 m (60 ft 10 in)
Wingspan: 21.45 m (70 ft 4½ in )
Height: 4.82 m (15 ft 9½ in)
Wing area: 60.80 m² (654.5 ft.²)
Empty weight: 12,890 kg (28,417 lb)
Loaded weight: 18,400 kg (40,565 lb)
Max. take-off weight: 21,200 kg (46,738 lb)
Maximum speed: 810 km/h (503 mph) at optimum height
Cruising speed: 750 km/h (460 mph) at 10,000 m (32,800 ft)
Range: 3.500 km (2.180 ml)
Service ceiling: 11.400 m (37.500 ft)
Rate of climb: 34.7 m/s (6,820 ft/min)
Powerplant
Two BMW 109-028 ‘Mimir’ turboprop engines, limited to 5.500 WPS (4.044 WkW) each plus an additional residual thrust of 650kg (1.433 lb), driving four-bladed contraprops.
Armament
6× 13mm MG 131 in three FDL 131Z turrets
1× 20mm MG 151/20 in unmanned/remote-controlled tail barbette
Up to 4.500 kg (9.800 lbs) in a large enclosed bomb-bay in the fuselage and/or four underwing hardpoints.
Typically, bomb load was limited to 3.000 kg (6.500 lbs) internally. 
Thema: What if? 1:72 BMW-Hütter Hü 324A-2/R2 Bomber [Whif/Luft'46/Kitbashing] (Gelesen 7257 mal)