Thought I better make a start as it will soon be December 2017

first a little background knowledge of the aircraft.
The He 111Z Zwilling was a design that entailed the mating of two He 111s. The design was originally conceived to tow the Messerschmitt Me 321 glider. Initially, four He 111 H-6s were modified. This resulted in an aircraft with two fuselages and five engines. They were tested at Rechlin in 1941, and the pilots rated them highly.A batch of 10 were produced and five were built from existing H-6s. The machines were joined by a center wing formed by two sections 6.15 m (20 ft) in length. The powerplants were five Junkers Jumo 211F engines producing 1,000 kW (1,340 hp) each. The total fuel capacity was 8,570 L (2,260 US gal). This was increased by adding of four 600 L (160 US gal) drop tanks.The He111Z could tow a Gotha Go 242 glider or Me 321 for up to 10 hours at cruising speed. It could also remain airborne if the three central powerplants failed.
The layout of the He 111Z had the pilot and his controls in the port fuselage only. The controls themselves and essential equipment were all that remained in the starboard section. The aircraft had a crew of seven; a pilot, first mechanic, radio operator and gunner in the port fuselage, and the observer, second mechanic and gunner in the starboard fuselage.
The He 111Z was to have been used in an invasion of Malta in 1942 and as part of an airborne assault on the Soviet cities of Astrakhan and Baku in the Caucasus in the same year. During the Battle of Stalingrad their use was cancelled due to insufficient airfield capacity. Later in 1943, He111Zs helped evacuate German equipment and personnel from the Caucasus region, and during the Allied invasion of Sicily, attempted to deliver reinforcements to the island.
During operations, the He 111Z did not have enough power to lift a fully loaded Me 321. Some He 111s were supplemented by rocket pods for extra take off thrust, but this was not a fleet-wide action. Two rockets were mounted beneath each fuselage and one underneath each wing. This added 500 kg (1,100 lb) in weight. The pods were then released by parachute after take off.
The He 111Z's operational history was minimal. One such machine was caught by RAF fighter aircraft over France on 14 March 1944. The He 111Z was towing a Gotha Go 242, and was shot down.Eight were shot down or destroyed on the ground in 1944.
The Messerschmitt Me 321 Gigant was a large German cargo glider developed and used during World War II. It was developed into the six-engined Messerschmitt Me 323 Gigant.
During the preparations for a possible invasion of Britain during World War II (Operation Sea Lion) it became obvious to the Luftwaffe's Transport Command that there was a need for a larger capacity cargo- and troop-carrying aircraft than its mainstay, the Junkers Ju52.
The Me 263 had a framework of steel tubing provided by the Mannesmann company, with wooden spars and a covering of doped fabric. This allowed for quick construction and easy repair when needed and also saved weight. The Me 263 was redesignated the Me 321 and was nicknamed Gigant ("Giant") due to its huge size.
Its nose stood over 6 m (20 ft) high, and was made up of two clamshell doors. The doors could only be opened from the inside, when ramps would be used to allow vehicles to drive in or out. Compared to the Ju 52, the Me 321 offered a load area six times larger, at around 100 m2 (1,100 sq ft), and could accommodate a gross cargo weighing up to 23 t (23 long tons). The cargo space had been designed to replicate the load space of a standard German railway flatcar, allowing any cargo that could travel by rail to fit into an Me 321. Alternatively, if used as a passenger transport, 120-130 fully equipped troops could be accommodated.
The Me 321 was fitted with a jettisionable undercarriage comprising two Bf 109 tailwheels at the front and two Junkers Ju90 main wheels at the rear and was intended to land on four extendable skids.
Crew: three
Capacity: 130 troops
Length: 28.15 m
Wingspan: 55 m
Height: 10.15 m
Wing area: 300 m²
Empty weight: 12,400 kg
Loaded weight: 34,400 kg
Maximum speed: 160 km/h on tow (100 mph)
Armament
Guns: 4 × 7.92 mm (.312 in) MG 15 machine guns
Well here we go, just a couple of parts assembled so far from each aircraft, firstly the Zwilling.
Then the Gigant, this is going to be a large beast when complete.
Thanks for looking in.
Al
Spal attached the following image(s):