1
GENERAL INFORMATION
SKYBOY
is European type certificated side-by-side
two-seat ultralight aircraft, conforms to Czech UL-2,
Germany BFU-DULV and other European UL requirements.
SKYBOY
fills FAI UL category for international sport
competition.
In the U.S.A this
SKYBOY EX
version is the
normal Experimental aircraft.
All metal design, light high-wing airplane with braced
riveted aluminum alloy cage structure, composite semi-
monocoque fuselage pod and aluminum boom supporting
conventional tail surfaces. Tricycle landing gear with
steerable nose wheel.
1.1 DESCRIPTION :
Skyboy EX – standard features :
Aluminum alloy basic tubes/riveted beams skeleton with basic composite canopy with gas struts opened gull-wing
doors ( in the basic version without doors ) and rear composite fuselage fairing.
Wings NACA 4412 with forward 2°swept , pressed ribs, composite wing tips, composite leading edge and 40%
ailerons. Ceconite fabric covered wings and tail. Tubes wing struts, aerodynamic struts for option.
Standard main wheels with hydro-pneumatic shock absorbers and mechanical nose brake. Controlled nose wheel.
Hydraulic brakes for option.
Standard dual control with separate joysticks, rudder pedals, and mechanical controlled elevator trim tabs.
ROTAX 582 engine with electric starter, battery, choke, fuel shut off valve and 3-blade ground adjustable
composite propeller.
4-point safety belts, upholstered seat rest and cushion-seat back. Plywood wall kit and aluminum alloy instrument
panel. Composite “sport car” look seat-back for option.
Standard white color Acrylate light finish.
Basic Instrument set includes : Airspeed indicator ∅ 3”
Altimeter ∅ 2”
Fuel Gauge
Rotax / Westach tachometer and cooling fluid temperature gauge
Another aircraft versions :
Skyboy S former European UL version
for lower stall speed with greater wing area and Dacron cowered wing, greater
elevator area, full span ailerons and smaller maximum and cruise speed
. Out of production.
Skyboy UL USA legal FAR Pt 103 ultralight trainer version
of original aircraft with shorter wing, high-lift airfoil P3 with light
leading edge, tube struts, less elevator area and a lot of saving weight changes, to fill USA regulation with take -off weight to 450 kg.