There are both TD and TG
versions available. Both versions could be built as XL for
Fuselage is of
wood truss design with prevalent section 15x15 mm covered with
plywood of 0,8-3 mm thickness. The pilot seat back is inclined
This assures comfort also for 185 cm (6,1 ft) tall pilot in
standard version. The
height of cabine is possible to modify for taller pilot if
necessary (up to 2 m pilot in XL version). The
inside with of cockpit in shoulder place is 54 cm (21,3"). The
plywood tunel with wing and upper gear legs mounts (TD) is under pilot
knees. The baggage compartment of 40 l (1,5 ft3) is
behind removable seatback. Additional baggage compartment could be
made behind pilot bulkhead. The composite cabin hood with
polycarbonate windshield of 1,5 mm thickness opens to the side. It
could be lockable. The NACA inlet for ventilation is on the side of cabine
part wing uses GA 37U-A315 airfoil. It consists of composite main
spar with carbon caps on which are glued ribs made of extruded
polystyren. It is covered with 1 mm plywood. Wingtips are made of
extruded polystyren with fiberglass layup or premolded are vacuum
bagged sandwich. The weight of painted wing half
is 12 kg (27 lbs). Connection of wings to fuselage is made thru
two main and two auxiliary pins. Disassembly of wings takes
5 and assembly 10 minutes. The connection of flaperons to controls
is performed by simple inserting of control pin into slot.
all movable horizontal tail (HT) has anti-servo tab and is
statically balanced. Tails are of similar construction as wings-
on composite spar are attached polystyrene ribs and plywood skin.
Spring trimming is under pilot seat. Disassembly of HT is made
thru disconnection of control and tab rods and pulling out of pin.
The fin has main composite spar with carbon caps and HT hinge.
legs of main gears are made of pultruded fiberglass rods. The
wheels of 12x4 size are braked using mechanical drum brakes. Tail
wheel of 100 mm (4") diameter is controlled via ruder and is
attached to the fiberglass spring.
single piece leg of main gears is made of glass roving/epoxy
composite. It is fixed on the botom of fuselage using 4 bolts to
reinforced structure. The
wheels of 12x4 size are braked using mechanical drum brakes. Nose
gears consists of cantilever leg made of CrMo stell tube 25x2 with
free castering fork made of carbon/epoxy composite. The wheel size
horizontal tail and flaperons are controlled via pushrods and
bellcranks. The flaperon mixer is under seat. The rudder is controlled via
cables of 2 mm diameter.
prototype of airplane is driven by Trabant auto conversion with
120x70 (48"x27.5") propeller fitted directly on the
airplanes are till now driven by Hirth F-33 AS, F-23 AS, B&S
Vanguard 24 HP and Verner JCV-360 engines. It
is possible to use any engine of 24-50 HP power range up to 40 kg
(89 lbs) weight. This criterion fulfil e.g. Rotax 447, Hirth 2702,
Victor 1, 2SI 460 , 1/2 VW etc.
integral tank of 28 l (7.4 US gal.) capacity (34 l optionaly) is placed behind
fuselage firewall. It is made of fiberglass-PVC foam sandwich. The auxiliary electric pump
could be placed on the firewall.
bus is juiced by battery and is charged by alternator. It is possible to place 12 V outlet under
instrument panel for GPS etc.
airplane is fitted with basic flying instruments-airspeed
indicator, altimeter, compass, vario and slip indicator. The EFIS-es
up to Dynon SV-D700 size could be used. There is enough space for
any engine gauges combination. There is place
for COM transceiver and TPD with installing diameter of 57 mm in the instrument panel. The
COM antenna is built in the airframe.
prototype airplane is equipped with rescue system GRS 4/270. The container of system is attached on fuselage
bulkhead behind pilotīs back. The front ropes are attached
on upper engine mount hinges. The auxiliary rope is attached to
fuselage behind cabin.
It is possible to use also other systems in serial version.
If is used light engine is possible to mount rescue system on the
firewall. It is possible to built airplane without rescue system.
|| 64.6 ft2
speed no flaps VS1
speed with flaps VSO
manouvering speed VA
exceed speed VNE
speed at sea level and MTOM***
*valid for plane equiped with
Hirth F-33 AS (28 HP) engine, without rescue system
** Hirth F-33 AS engine
***Hirth F-33 AS
engine and propeller 120x95 (48x37.4)