EC-1 of 1927-1928 was “convertible” light parasol monoplane; the cockpit could be open or closed.
Inter-Wars
Elias Elias-Stupar
Elias-Stupar was twin-engined cantilever civil biplane.
Elias XNBS-3
XNBS-3, tested August 1924, was large twin-engined bomber with steel-tube fuselage and wooden wings.
Elias EM/EO “Marine Expeditionary”
In 1922 Elias made first of seven EM/EO “Marine Expeditionary” two-seat biplanes (wheels or floats).
Elias, G. & Brothers Inc
USA
Formed in 1881 but made aircraft only after First World War, at Buffalo, NY. By 1929 had made nine experimental types for U.S. air services and Post Office, as well as armament types for the Air Corps. In 1922 made first of seven EM/EO “Marine Expeditionary” two-seat biplanes (wheels or floats). XNBS-3, tested August 1924, was large twin-engined bomber with steel-tube fuselage and wooden wings. Elias-Stupar was twin-engined cantilever civil biplane. EC-1 of 1927-1928 was “convertible” light parasol monoplane; the cockpit could be open or closed.
EKW C-35
In 1934, the Swiss air arm, or Fliegertruppe, called upon the EKW (Eidgenossische Konstruktions Werkstätte, or Federal Construction Workshop) to design a new airplane that could combine the roles of fighter, reconnaissance and tactical support aircraft. EKW’s efforts to fulfill such a difficult requirement produced two very different blueprints. One, the C-35, was a sturdy but conventional two-seater biplane first flown in 1935. The other was the C-36. The Swiss government judged the C-35 a surer prospect for swift development.
The biplane was fast becoming outmoded, and within 3½ years the Swiss government accepted the fact it had probably ordered the wrong aircraft. Two prototypes and 88 production C 35s were built, the first in 1936 and the last eight being assembled from spares in 1942. Of similar mixed construction to the C.V E, the C 35 was powered by the 860 hp Saurer built Hispano Suiza 12Ycrs, with a 20 mm (0.79in) cannon firing through the hub of the three blade fixed pitch propeller. Two 7.5 mm (0.295 in) machine guns were fixed under the lower wing, and a third was aimed by the observer after folding forward the canopy over the rear cockpit. A bomb load of six 100kg (220 1b) bombs could be carried. The C 35 served until 1949.
Span: 13.0 m (42 ft 712 in) Length: 9.3 m (30 ft 4 in) Gross weight: 2500 kg (5512 lb) Maximum speed: 340 km/h (211 mph)
EFW DH-4
1919; 60 built, a DH-3 replacement
DH-5A a higher-powered version of 1928, with steel-tube fuselage (22 built).
EFW (Eidgenössische Flugzeugwerke) / F+W / EKW / Eidgenossische Konstruktions Werkstätte / Federal Construction Workshop / Eidgenossiches Flugzeugwerke / Elbe Flugzeugwerke / Fabrique Federale D’avions
Eidgenössiche (Constructions) Werkstätte was formed at Thun early in First World War. Made aircraft to designs of A. Haefeli, who was earlier with Farman and Ago. First was DH-1 pusher (six built in 1916) showing Ago influence; DH-2 was tractor which went into production as developed DH-3 (110 of these two-seaters built). DH-4 was fighter prototype of 1918; DH-5 (1919; 60 built) a DH-3 replacement; DH-5A a higher-powered version of 1928, with steel-tube fuselage (22 built). To a government specification of 1934 it built the C-35 multipurpose two-seat biplane as a replacement for the Fokker C.V-E, which it resembled, and which the company had produced jointly with Dornier since 1932.
The Eidgenos¬sische Konstruktions Werkstatte (EKW) built the Fokker C.V E under licence.
EKW (Eidgenossische Konstruktions Werkstätte, or Federal Construction Workshop) became EFW.
In 1932 Dornier production was resumed in Germany. The Swiss factory subsequently became the Eidgenossisches Flugzeugwerk. Founded 1934 as government-run R&D organization, with manufacturing, maintenance and upgrading capabilities. In an official specification of 1934 the company had designed the C-36 monoplane.
Newly named EFW, it revived the design in 1938 and built 160 as C-3603. Of C-3604 development, only 13 were built.
EFW began in 1955 manufacturing the Ilyushin Il-14P under licence, as well as development of the Baade 152.
After the war became responsible for Swiss license production of various foreign aircraft for Swiss Air Force, including the British Vampire, Venom and Hunter (under Hawker Siddeley contract), several versions of French Mirage and US F-5E/F combat aircraft, plus French Alouette III helicopter. Produced C-3605 as turboprop conversion of wartime C-3603 fighter-bomber, used for target-towing.
Adopted F + W title in 1972 from former EFW and two other used names. Subsequent work has included assembly of Hawk trainers, Hornet fighters, component production for Airbus and McDonnell Douglas airliners, manufacture of missiles, and more.
Later became a subsidiary of the European Aeronautic Defence and Space Company (EADS),
Eber H Van Valkenberg Aircraft VM-11
The 1927 VM-11 was built at Bettis Field, McKeesport, in association with Clifford Ball and D Barr Peat. It had a four-place cabin and open cockpit at the rear. It was registered N1540 c/n 11, which was later changed to N2972.
The VM-11 crashed on 3 November 1927.
Engine: 180hp Mercedes 6
Wingspan 38’2″
Length: 24’6
Seats: 5
Eber H Van Valkenberg Aircraft Co
McKeesport PA and Toledo OH.
USA
Airplane builder circa 1927-8. Eber H Van Valkenberg Aircraft Co began building a three seat monoplane with side-by-side seating in a rear cabin and a forward cockpit that could be open or enclosed. It was sold to Dr Leland E Phelps of Toledo c.1928, who rebuilt and expanded the plane as a four place cabin. It was never flown when called the Van Valkenberg. It was licensed as Phelps Monoplane #1 and also seen as Phelps Z-281.
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