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At the end of the 1980s, the Polish company Margański & Mysłowski Zakłady Lotnicze decided that there was a gap in the aerobatic glider market - the good old all-wood SZD-21-2b Kobuz 3 constructed in the 1950s was no longer enough to breathe. So in 1991, designers Edward Margański and Jerzy Cisowski, supported by Jerzy Makula (at that time three-time world champion in aerobatic gliding) come up with the new Swift S-1, a modern all-composite aerobatic glider with an incredible twisting speed (only 4 s) capable of handling overload +/ -10g. The reward came almost immediately - Jerzy Makula won his fourth FAI Glider World Champion title that same year. And now you can enjoy flying with a half scale model of this wonderful 2400mm span glider powered by a powerful AC motor!
The hull of the model is made of highly resistant EPO foam (extruded polyolefin) with thorough internal carbon reinforcements. In the bow is installed a C3548-750 AC electric motor with a folding 11x8" propeller and a KAVAN R-50SB regulator with a powerful BEC power stabilizer needed to power the 4 powerful micro servos on board. The cabin cover is removable, fixed with a pin at the front and a magnet at the back. In the bow you will find enough space for the drive battery and receiver. The rudder and elevator servos are stored in the keel, the rudders are controlled by short straight wire rods.
The wing of the EPO foam model is two-part with carbon beams, the protruding parts of which also serve as a wing coupling fitting into the duralumin bushings in the fuselage. The wing halves are secured in place with a plastic screw. The ailerons over the entire wing span (reinforced with carbon tubes) are controlled independently by two servos with short straight wire rods.
The tail surfaces are also made of EPO foam with carbon tube reinforcements. The horizontal tail surface is attached to the fuselage with a pair of screws for easy assembly and disassembly.
The model is powered by a class C3548-750 AC motor with a 50 A KAVAN R-50SB regulator.
For power, you will need a four-cell LiPo with a capacity of 2200-2700 mAh with a load capacity of at least 30C. Choose the specific type so that the correct position of the center of gravity works best for you without further importation.
To control the model in an emergency, you can also use a four-channel computer RC set without special functions - in the basic design, the ailerons are connected to only one channel using a Y-cable. The ideal is, of course, to use at least a six-channel computer RC set allowing independent control of the ailerons by two servos and their mixing in the role of an aerodynamic brake (both ailerons deflect upward in agreement), which even the affordable Radiolink AT9S or AT10II or Futaba T6K or T10J can do today. In this case, it is necessary to replace the Y-cable of the ailerons in the fuselage with two (15-30 cm) extension cables. Of course, the manual includes a thorough table with proven default rudder deflection settings (including mixes) to easily prepare the Swift for flight.
ARF set includes: finished fuselage, wing and tail surfaces from EPO foam with installed engine, propeller, governor and 4 servos, instructions.
| Span [mm] | 2405 |
| Length [mm] | 1300 |
| Weight [g] | 2000 - 2050 |
| Wing area [dm 2 ] | 45 |
| Controlled functions | S,V,K(2),M |
| Difficulty of construction | S0, S1 |
| Difficulty of piloting | P2 |
Drive and RC equipment:
| Engine | *C3548-750 |
| Regulator | *KAVAN R-50SB |
| Propeller blades | *11x8" |
| Accumulator | KAVAN 14.8V 2200 mAh 30/60C or KAVAN 14.8V 2600 mAh 40/80C |
| Serve | *4x GO-17MG |
| RC kit | min. 6 computer channels |
| *) Part of the ARF set | |
