The Székely IV Parasol of 1913 was designed and built by the Hungarian Mihály Székely (Hungary then part of the K.u.k – Austro-Hungary). A typical parasol wing machine with the pilot and passenger sitting in a nacelle beneath the wing-tractor configuration, with the engine high before the wing and petrol tanks above.
1913 Szekely IV 2-seater “parasol” monoplane received 2nd altitude prize achieving 610 meters.
Span: 36’1″
Length: 28’11”
Weight empty: 521 lbs
Speed: 44 mph
Evolved from the Vidervol-Szaraz VS-1, the Szaraz SD-1A Daphne is a homebuilt aircraft that was designed by Art Szaraz and Bernie Darmstadt for efficiency competitions.
The Daphne is a two place side-by-side configuration strut-braced high-wing, conventional landing gear equipped homebuilt. The fuselage uses welded steel tubing with aircraft fabric covering. The wings are wood, with one-piece plywood ribs. Both ailerons and flaperons have been installed on the design.
The first three examples were built on the same jigs at Art Szaraz’s workshop. At least fifteen were built. At least 26 were under construction by Jan 1970.
Known examples:
N960Z (c/n 1) built by Arpad Szaraz, ff: 1963
N962Z built by Nick Stanich, ff: 2/28/65
N961Z built by B D Darmstadt, ff: 6/18/65
SD-1A Daphne
Engine: 1 × Continental C-85-12F, 85 hp (63 kW)
Propeller: 2-blade
Wingspan: 26 ft (7.9 m)
Wing area: 130 sq ft (12 sq.m)
Airfoil: NACA 4412
Length: 19 ft 7 in (5.97 m)
Empty weight: 820 lb (372 kg)
Gross weight: 1,300 lb (590 kg)
Maximum speed: 130 kn; 241 km/h (150 mph)
Cruise speed: 104 kn; 193 km/h (120 mph)
Stall speed: 35 kn; 64 km/h (40 mph)
Never exceed speed: 148 kn; 274 km/h (170 mph)
Service ceiling: 14,500 ft (4,400 m)
Rate of climb: 1,000 ft/min (5.1 m/s)
Capacity: 2
SDS-1A Daphne
Engine: 90hp Continental
Wingspan: 26’0″
Length: 19’0″
Useful load: 520 lb
Cruise: 125 mph
Stall: 40 mph
Range: 400 nm
The 1936 homebuilt single-place, open cockpit biplane built by Sig Syvrud, was designed by Al Schauss.
Engine: Szekely
Wingspan: 18’0″
Top speed: 90 mph
Cruise: 80 mph
Stall: 35 mph
Seats: 1
A conventional, high-wing, strut-braced tail-dragger powered by a variety of Rotax engines. Built primarily out of tube-aluminium with Stits covering.
The Swiss Aerolight ULM was a two-seater with a Rotax 503. Four sets of plans were sold.
In June 2012 the two occupants of the ULM, including builder Dominique Loup, perished after the crash of their aircraft in the town of Saint-Mathieu-de-Tréviers, about twenty kilometers north of Montpellier. The aircraft had taken off a little earlier from the aerodrome of Peak Saint-Loup.
The fatal accident stopped the development.
The Tango features a composite fuselage with a large cockpit and large doors. The wooden wings are strut braced. The pilot is almost lying down, with a Cessna style steering column.
BTA 4 Tango
Empty weight: 276 kg
Wing span: 10.2 m
Wing area: 12.9 sq.m
Fuel capacity: 75 lt
Certification: vVz
Engine: Rotax 912, 80 hp
MAUW: 450 kg
Seats: 2
Max speed: 220 kph
Cruise speed: 160 kph
Minimum speed: 65 kph
Climb rate: 6 m/s
Fuel consumption: 10 lt/hr
Price (1998): 73,500 DM
Certain versions can operate with a hangglider wing. The parapland version was offered with a Flight Design canopy. The nose wheel was steerable in later versions.
Empty weight: 58 kg
Wing area: 30 sq.m
Fuel capacity: 15 lt
Certification: vVz
Engine: Hirth F-33, 22 hp
MAUW: 48 kg
Seats: 1
Max speed: 48 kph
Min speed: 18 kph
ROC: 2 m/sec
Fuel burn: 3.5 lt/hr
Price (1998): 11 990 DM
The 1929 Swift Aircraft Corp Trainer was a two-place open cockpit biplane.
Engine: 90hp Curtiss OX-5
Wingspan: 33’0″
Length: 24’8″
Useful load: 340 lb
Max speed: 89 mph
Cruise: 75 mph
Stall: 38 mph
Seats: 2
One Swift Aircraft Corp Sport was built, in 1929, registered NX4647 c/n 1000. It was a two-place open cockpit biplane.
Engine: 100hp Kinner K-5
Wingspan: 29’0″
Length: 21’3″
Useful load: 618 lb
Max speed: 115 mph
Cruise: 100 mph
Stall: 38 mph
Range: 620 mi
Engine: Wright J-5
Useful load: 620 lb
Max speed: 132 mph
Cruise: 115 mph
Stall: 41 mph
Range: 600 mi
Seats: 2
The 1928 Swift Aircraft Corp Special was a single-place, open cockpit biplane. Power was a Siemens and Warner engine.
All Aero 