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Wolfgang Dallach Flugzeugbau D.4 Fascination Siggi’s Aeroplane Works D-4 Fascination DG Aircraft Fascination W.D. Flugzeugleichtbau Fascination UL-JIH Fascination
The Fascination was marketed by WD Flugzeugleichtbau of Heubach, Germany as the Dallach D.4 Fascination. This was an aircraft of mixed construction, including wood, composites and steel components with fabric covering. It first flew in 1996. An all-composites version, the Dallach D.4 BK Fascination was flown in 1999.
The Fascination has a spaceframe fuselage and composite wings covered in Dacron. It is equipped with a retractable undercarriage, wing flaps and a variable pitch prop. It is powered by a Rotax 912 UL or Rotax 912 ULS engine. Price 2009: 84000 EURO 
The Fascination F100 is an advanced version of the ultralight/VLA airplane which was based on the all composite VLA layout of the Fascination (D4BK) by Wolfgang Dallach. During and after his collaboration with Wolfgang Dallach, Jaroslav Sedláĉek from UL-Jih in the Czech Republic made own contributions to the design which finally led to the UL-Jih F-100.
The Wolfgang Dallach Company collapsed and on 1 August 2008 DG Aircraft GmbH took over support of the Dallach "Fascination", "Evolution", "Sunwheel" and all derivatives.
The Czech Kaplice company UL-Jih successfully completed testing the Fascination F100. On December 12, 2007, the craft was weighed in the presence of the LAA’s chief inspector, the German engineer Otto Bartsch, and a representative of the French company J.F. Boudet. The aircraft, together with adjustable propeller and retractable landing gear in operational mode, weighed 294 kg. The hull also passed the stress test with an overall burden of 3265 kg. In July of 2007 the wings were subjected to a fracture test with a 2100 kg load. In 2008 the aircraft will be ready for the French and German market. 2009 Price: 62500 EURO
 Fascination F100
UL-Jih fabricated the Fascination F100 models and claimed sole production and marketing rights both to the D.4 and D.5 when WD Flugzeugliechtbau ceased trading in 2005, though those rights are challenged by Swiss Light Aircraft AG, who build their own versions. The later Fascinations are all-composite aircraft, with a low wing of trapezoidal planform. The ailerons have external balance trim tabs and sealed nosegaps. Inboard, there are electrically operated Fowler flaps. The fuselage becomes slender towards the tail, where the trapezoidal tailplane is set at mid-height, the elevators having a small cutout for rudder movement. The fin is swept but the rudder has vertical edges; it extends to the bottom of the fuselage. The cockpit seats two in side-by-side configuration under a one-piece bubble canopy, lever hinged from the rear; behind the seat backs there is luggage space. Until 2008, all Fascinations had a retractable tricycle undercarriage. The main wheels, mounted from the fuselage on cantilever spring legs, retract electrically outward into the wing and the nosewheel retracts rearwards. The fixed wheel option has wheel fairings. The main wheels have brakes and the nosewheel power steering. A Stratos Magnum 501 ballistic recovery parachute is fitted.
 The Fascination has been marketed both complete and in kit form. More than 200 had been sold by 2006 and 183 appeared on the mid-2010 civil registers of European countries, excluding Russia. The price in 2017 was €89.380 for the F100.
It was reported that Fascination-airplanes (various versions) were flying in countries as remote as Brazil, Australia, and the Philippines.
DN4
Original mixed construction Fascination
First flew 1996
41 built
DN4 BK
Composite construction
Stall: 35 kt / 40 mph / 64 kmh
Cruise: 146 kt / 168 mph / 270 kmh VNE: 157 kt / 180 mph / 290 kmh Empty Weight: 290 kg / 639 lbs MTOW Weight: 450 kg / 992 lbs Climb Ratio: 1600 ft/min / 8,5 m/s F80
Engine: Rotax 912UL, 59.6 kW (79.9 hp)
Wing span: 9.10 m (29 ft 6 in)
Wing area: 10.6 sq.m (115.2 sq ft)
Length: 6.87 m (22 ft 6 in)
Height: 2.10 m (6 ft 11 in)
MAUW: 472.5 kg (1,042 lb)
Empty weight: 297 kg (655 lb)
Fuel capacity: 96 L (25.3 US gal; 21.1 Imp gal)
Never exceed speed: 270 km/h (170 mph, 150 kn)
Cruise speed: 243 km/h (151 mph, 131 kn)
Stall speed: 65 km/h (40 mph, 35 kn) flaps extended
Climb rate: 6.0 m/s (1,180 ft/min)
Range: 1,400 km (870 mi, 760 nmi) with max fuel
g limits: +4.0/-2.0
Certification: VZ
Seats: 2
Fuel consumption: 15 lt/hr
Price (1998): 120 500 DM
Kit price (1998): 76 300 DM
F100
Engine: Rotax 912ULS
Propeller: ground-adjustable DUC, or variable-pitch Woodcomp SR 3000/2W
Span: 9,00 m
Wing area: 10,76 sq.m
Length: 6,65 m
Stall: 35 kt / 40 mph / 65 kmh
Cruise: 132 kt / 152 mph / 245 kmh VNE: 146 kt / 168 mph / 270 kmh Empty Weight: 300 kg / 661 lbs MTOW Weight: 472 kg / 1041 lbs Climb Ratio: 1200 ft/min / 6 m/s Glide Ratio: 10 Take-off distance (50ft obstacle): 690 ft / 210 m Landing distance (50ft obstacle): 1150 ft / 350 m
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