The Farman F.121 Jabiru is arguably one of the ugliest aircraft ever. It was, for reasons of safety (it had 4 engines), used by Det Danske Luftfartselskab  in the competition against the Swedish AB Aerotransport. Incidently, both companies are now part of Scandinavian Airlines Systems).

Two Farman Jabiru were delivered to DDL in 1926 from France, and two more were built under license in Denmark by Orlogsværftet.  The aircrafts were scrapped in 1931. The Jabiru had four 180 h.p. Hispano Suiza 8ac water-cooled engines, two in each nacelle. The main passenger cabin accommodated six, and the aircraft had a crew of two.

Specification

Crew: 2
Passengers: 6
Length: 13.92 m (45 ft 8 in)
Wingspan: 19.00 m (62 ft 4 in)
Height: 4.50 m (14 ft 9 in)
Wing area: 81 m² (871 ft²)
Empty weight: 3,404 kg (7,497 lb)
Max takeoff weight: 5220 kg (11,497 lb)
Powerplant: 4× Hispano-Suiza 8Ac, 244 kW (180 hp) each
Maximum speed: 210 km/h (130 mph)
Cruise speed: 175 km/h (108 mph)
Range: 750 km (466 miles)

I have received some 3-Views from a guy in the US, but they are not very detailed. Furthermore, I have visited the national archives who claimed they had some drawings from back when this aircraft was license-built in Denmark.  Unfortunately, what they had was very very old blueprints (that had turned black with age), and they only had a few of them. All I could use was a top-view of the wing.

I found a model of this ugly aircraft at Teknisk Museum in Helsingør the other day. Note that the pilot was sitting in an open cockpit on top of the passenger cabin.

This should be a fun airplane to design. The fuselage is very simple, and so are the wings and the empenage. Only problem, really, is the engine pods. I will start on this airplane real soon.

Scale: 1:10
Length: 1.392 m
Wing span: 1.90 m