+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
Some background:
Under the Treaty of Trianon (1920), Hungary was forbidden from owning military aircraft. However, a secret air arm was gradually established under the cover of civilian flying clubs. During 1938, as a result of the Bled agreement, the existence of the Royal Hungarian Air Force (Hungarian: Magyar Királyi Honvéd Légierő (MKHL)), was made known. The army's aviation service was reorganized and expanded.
Late 1938 the army aviation was once again reorganized. Admiral Horthy, the head of state, ordered that the army aviation should become an independent service with effect of 01.09.1939. It subsequently participated in clashes with the newly established Slovak Republic and in the border confrontation with the Kingdom of Romania.
In 1940, the decision was made to unite the Air Force, the anti-aircraft forces, and the civilian air defense organizations under one central headquarters. In April 1941, operations were conducted in support of the German invasion of Yugoslavia and, on 27 June 1941, Hungary declared war on the Soviet Union.
On 01.06.1941, the Air Defense Corps was established, and Lieutenant General Béla Rákosi became Commander of Army Aviation. In effect the Air Force had once again become part of the Army. In the summer of 1942, an air brigade was attached to the Luftwaffe's VIII. Fliegerkorps at the Eastern Front.
At that time, most of the Hungarian Air Force's fighter equipment was of German origin, consisting of types like Bf 109 F and G, Fw 190 A/F, Me 210. But some indigenous designs were under development, too, e. g. at the RMI, Repülo Muszaki Intézet, or Aviation Technical Institute. Its aircraft were primarily (but not exclusively) by László Varga, and as a result, RMI designs were often given the Varga name (in some cases, even when he was not the major designer). But the RMI designation was used in parallel, too.
One of the domestic developments was the RMI-11 'Sólyom' (= Falcon) fighter. This single engine aircraft drew heavily upon the Bf 109 design, but featured some changes and improvements like an inward-retracting landing gear or a bubble canopy. It also incorporated elements from the heavy RMI-8 fighter, a push/pull design with twin tail booms, but the RMI-8’s sole prototype was destroyed by Allied air raids before a serious test program could be launched.
In contrast to the complex RMI-8 the RMI-11 was a small and light aircraft, a conventional but clean design, based on simple shapes for easy, modular production. Most of its structure was made from wood, saving sparse metal whenever possible. Empty weight was, for instance, about 200 kg less than a contemporary Bf- 109 G.
The RMI-11 was driven by a liquid-cooled DB 605 inverted V12 engine, rated at 1.475 hp. Thanks to the low weight of the airframe, the machine achieved a high top speed and an exceptional high rate of climb.
Originally designed as a fast and agile interceptor in the early stages of WWII, the RMI was only armed with two 13mm MG 131 with 300 RPG and two 7.92 mm MG 17 in the outer wings. Two underwing hardpoints could carry up to 100 kg each.
The RMI-11 prototype made its maiden flight in late 1943 and after a basic but successful test program immediately ordered into production – in a hurry, though, and beginning March 1944, Allied bomber raids began on Hungary and progressively increased in intensity.
Production of the RMI-11 gained only slowly momentum, due to material shortages, because the RMI-11was primarily of plywood bonded with a special phenolic resin adhesive that was supplied from German sources. Due to Allied bombing raids on the glue’s original production sites the plywood glue had to be replaced by one that was not as strong, and was later found to react chemically, apparently in a corrosive manner, with the wood in RMI-11’s structure. In November 1944, several RMI-11s crashed with wing and tail failures due to plywood delamination. This same problem also critically affected the German Focke Wulf Ta 154 and Heinkel He 162 programs.
Late in 1944 all efforts were redirected towards countering the advancing Red Army. Soon it was clear that the type needed long range cannons with higher caliber in order to encounter heavy Allied bombers, so plans were made to add heavier German armament. This was realized through an extra pair of MG 151/20 20 mm cannons with 150 RPG, which were added in fairings under the wings instead of the original bomb hardpoints (which were hardly ever used in service at all). During the same refit, the rather ineffective MG 17s were deleted, saving weight and leaving more room inside of the wings for the MG 131s’ ammunition supply (now with 400 RPG)
At that time only about 60 production aircraft had been completed and modified, and production was halted due to the severe structural problems. These machines were nevertheless thrown into service, with repairs and upgrades done at the Hungarian airfields – but the glue problem was a constant operational danger.
Still, all these efforts were to no avail: All fighting in Hungary ended on 16 April 1945, and all RMI-11’s were scrapped after hostilities ended.
General characteristics
Crew: 1
Length: 8.82 m (28 ft 10 ½ in)
Wingspan: 10.58 m (34 ft 8 in)
Height: 4.10 m (13 ft 5 in)
Wing area: 16.82 m² (181.00 ft²)
Empty weight: 1,964 kg (4,330 lb)
Loaded weight: 2,200 kg (4,840 lb)
Max. take-off weight: 2,395 kg (5,280 lb)
Powerplant:
1× Daimler-Benz DB 605A-1 liquid-cooled inverted V12, 1,475 PS (1,085 kW)
Performance:
Maximum speed: 640 km/h (398 mph) at 6,300 m (20,669 ft)
Cruise speed: 590 km/h (365 mph) at 6.000 m (19.680 ft)
Range: 850 km (528 mi)
Service ceiling: 12.000 m (39.370 ft)
Rate of climb: 17.0 m/s (3.345 ft/min)
Wing loading: 196 kg/m² (40 lb/ft²)
Power/mass: 344 W/kg (0.21 hp/lb)
Armament:
2× 13mm MG 131 (.51 in) machine guns in the wings,400 RPG, plus 2× 20mm MG 151/20 (.51 in) machine cannons, 150 RPG, in external underwing fairings.With the cannons deleted up to 8× 15 kg (33 lb) or 2× 50, 100, or 150 kg (110, 220, or 330 lb) bombs under the wings
The kit and its assembly:
This is a serious kitbash and a totally fictional aircraft - and you are IMHO an expert modeler if you recognize what basically went into it!
This build was inspired when I recently bought an RS Models Nakajima Kikka jet fighter, the double seater kit. As a bonus it comes with two fuselages: effectively, it is the single seater kit with an extra sprue and a different canopy. Looking at the Kikka's profile I found that it HAD to be converted into a piston engine aircraft, with a liquid-cooled engine. Wings and anything else would come from the scrap box, but it should become a sleek fighter aircraft, a late WWII design.
From that, things went straightforward:
● Fuselage from a RS Models Nakajima N9J1 "Kikka", front end cut away
● Wings from an Revell Macchi C.200 Saetta
● Stabilizers from an Art Model MiG I-210 fighter
● Canopy from a late Supermarine Spitfire (Special Hobby, IIRC)
● Nose/engine and radiators from an RS Models Ki-78
● The propeller was scratched from single pieces/blades and the Ki-78 spinner
● The landing gear is a Ki-78/C.200 parts mix.
I settled for the Ki-78's radiator installment on the rear flanks because it is a unique feature and simply does not hamper the sleek side profile. I also thought that this might have been a smart solution for modular production - fuselage and wings could be completed separately.
The Ki-78 engine had to be widened considerably to match the Kikka’s trapezoidal fuselage diameter, putty and major sculpting resulted in a relatively smooth and subtle intersection. As per usual, an axis construction for the propeller was added, too, so that it can spin freely. Mating wings and fuselage necessitated a new cockpit floor (which acts at the same time as landing gear well interior), and a 3mm bridge at the wing roots had to filled – but that was easy.
The cockpit interior was outfitted with spares, the Spitfire canopy needed some small styrene wedges under the windshield to make it fit onto the Kikka fuselage.
Things went rather smoothly until I fixed the wings to the completed fuselage. However I placed them, it looked odd – too far back, and the nose stood out; too far forward, and the tail was too long. Somehow, proportions did not match – only slightly, but it bugged me. So far that I eventually decided to shorten the fuselage – after having completed it, radiators already in place and everything sanded even. I made a vertical cut behind the cockpit and removed ~7mm of length – and suddenly the aircraft looked good! Needed some extra body work, but the aircraft looks much more balanced now.
The underwing fairings for the cannons were late additions, too. I wanted to keep the fuselage clean, with no nose guns, but adding heavier armament turned out to be tricky. The fairing solution was inspired by a real-world Fw 190 Rüstsatz which featured two MG 151/20 apiece. I had appropriate parts from an Academy Fw 190 left over, so I sliced these up and narrowed them for a single cannon each, and this was the right size for the slender aircraft. All gun barrels were created through heated and pulled-out styrene tubes.
Painting and markings:
Deciding what this aircraft was to become was tougher than building it! With its clearly German origin it had to be a WWII Axis type, but I did neither want a German nor a Japanese aircraft, even Italy was ruled out – all too obvious. With Hungary and its RMI designs I eventually found a good potential origin, and this also allowed a rather "colorful" livery. With the Hungarian background this kitbash became the RMI-11.
The paint scheme was inspired by an experimental Hungarian camouflage in Green, Gray and Brown, seen on a Bf 109G. I could not find color indications, but in the end I settled for three RLM tones for the upper sides, RLM 71, 75 and 79, coupled with RLM 76 for the lower sides. All tones are enamels from Modelmaster's Authentic range, panels and leading edges were slightly emphasized with lighter shades. As a small design twist I added a wavy, medium waterline on the fuselage sides.
Interior surfaces were, lacking any reference, kept in RLM 02. In order not to be too fanciful, the spinner became black with a green tip (RLM 62), and the blades were painted with a mix of RLM 70 (Black Green) and Black, for a very dark and dull green tone, Luftwaffe style.
The yellow markings correspond to German Luftwaffe markings of the late WWII era, the yellow 45° “V” under the lower left wing was introduced in the Balkan region in 1944, it was also carried by Luftwaffe aircraft in this conflict theatre.
The flashy decoration on all tail surfaces disappeared at that time on real aircraft (only small Hungarian flags were carried on the tail rudder), but I still incorporated the full national insignia because it's unique and a colorful contrast to the rest of the aircraft.
Most markings belong to a real Hungarian Bf 109G (from a Print Scale aftermarket sheet), I just scratched the national markings on the fuselage and the yellow markings (all cut from stock decal material) and parts of the Hungarian flag insignia on the tail: the tips were painted with red, the white and green bands were cut to measure from a Frecce Tricolori sheet.
A light black ink wash was applied and some dry painting added with gray and black (for soot and exhaust stains), for a lightly weathered effect. As final step, everything was sealed under matt acrylic varnish (Revell).
A quickie, done in just a week, but with a very convincing look. One might recognize Bf 109 F/G, Ki-78 and even He 100 features, but none of these aircraft really matches up with the RMI-11 at second glance, there are too many individual differences. If it gets you wondering – mission accomplished! ;)