new savage shock cub
After 13 long months of designing, planning, calculations, tests, and much fascinating work, Zlin Aviation has finally unveiled their new airplane - THE SHOCK CUB.
THE NEW FUSELAGE FRAMEWORK
The design set off from the fantastic Savage Cub-S, reinforcing and refining the Fuselage Framework, increasing by several centimeters the cockpit height, improving the accessibility and the general ergonomics on board, which now offers excellent improvements. We have increased the surface of the already generous Cub-S Elevator and Rudder, fundamental elements in the “ultraslow” flight. The Stabilizer vertical travel, due to the new Jack Screw Trim System, has been increased to balance the new Hyper Stol Wing angle of incidence. Finally a series of optionals aimed to a weight reduction up to 25 kg are available since now for our new Airplane as for all the other Savage. Since today, on request, the Cockpit can be decorated with Carbonfiber datails, such as, Instrument Panel, the new Floorboards, the Kevlar reinforced light weight Seats. New Throttle levers are installed in the baseline. The basic Engine Mount for the Rotax is a dynafocal type and the Engine Cowling can accommodate up to 180 hp engines such as Lycoming / Titan or other make, on request.
THE NEW LANDING GEAR
The Landing Gear is totally new, already reinforced in the basic series and is equipped with ultra-performing Shock Absorbers in three points. The Front and Rear Suspensions innovative Design shows an unimaginable shock absorbing capability and the Drop Tests have shown that with a weight of 1000 kg and an height of 120 centimeters the structure keeps its full integrity. Landing on a bumpy surface it will never easier. The Landing gear position has been generously moved forward to allow an exceptional breaking capability without the risk of overturning. The weight increase due to this improvement versus the Cub S is very small ( 4 kg about).
THE NEW WING
The Wing is totally new and, obviously, is one of the most important feature of this new Airplane. The new Wing is equipped with new customized Hyper Stol profile. The new Spars, together with many other structural improvements, have allowed us to test the wing up to above 700 Kg MTOW x 6g (Ultimate Load) with no residual permanent deformations. The attachments to the Fuselage have been radically revised and structurally improved. The wing tip is shaped for the best contribution to Lift in its area and, on request, is available also in Carbonfiber. Its contour allows the Ailerons to keep their efficiency to extremely low speed. The innovative new “Double Slotted” Flaps, with a surface 70% larger than the baseline, can be equipped, on request, with our in house developed mini vortex installed inside the vane. The new Wing, equipped with the innovative Double Slotted Flaps, has made possible to increase tremendously the Lift Coefficient providing excellent performance in landing. The pitching Moment generated by the New Flaps allows the Pilot to “see” exactly the landing area, as the nose will be lower than usual, with the final positive consequence of an improved safety for this kind of flying. The Ailerons surface as been increased by 40% to allow the Pilot to keep full control authority at extremely low speed at the approach / stall. The Wing Braces sections have been beefed up where necessary and the weight increase, including all the structural improvements, is limited to 7 kg per wing. The Fuel Tanks capacity has been increased to 110 liter (on request). The new Wing, can be equipped with extra light Carbonfiber Slats with a total weight increase of less than 5 kg (optional). This device has been extensively developed and tested in Alaska with the aim of minimizing the Cruise Speed reduction (-3 mph) and, at the same time, through pivoting according to the airflow, slowing down the Airplane to unbelievably low speed. Being fixed and not extendable with spring mechanism, there is not risk of having an half Wing with Slats extended and an half Wing with Slats retracted at the approach, in turbulence, during turning or sideslip, or near the ground. With the Slats a different type of landing can be performed, with the nose very high on the horizon, ridiculous approach speed and contact with the ground with the tail wheel first . This type of landing, defined by us as “competition”, allows spectacular and ultra short stopping spaces, since the Pilot, adequately trained, can contact the ground with pre-activated brakes, thanks to the new forward position of the Main Landing Gear which will avoid any tendency to the overturning. The braking action will also by amplified by the Main Landing Gear damping System which, dissipating the energy due to the high vertical deceleration, will subtract longitudinal kinematic energy to the Airplane and reduce to a minimum the necessary landing distance. With just a relatively small head wind it will be possible to have virtually vertical landings which make the Airplane even safer in its natural habitat. Finally is very important , in the Bushflying and in this kind of landing, the general visibility. This is why the Pilots tandem configuration is believed by the professionals to be the one really valid in extreme conditions and it is not difficult to get an understanding of the reason.
SAFETY FIRST OF ALL
The new Slats make spin, in practice, almost impossible, while make easy to control and less dangerous stall. In fact the Shock Cub stall is so unnatural and its stall angle of attack is so high that would never be reached by chance or by error at the approach. All this becomes an additional safety for the Pilot. From this standpoint, in fact, if to an aerodynamic profile “spin proof” are added a structurally improved Wing, a Fuselage structure more robust, an iper-energy absorbing Landing gear and well sized Bush Wheels, besides of really small landing spaces, the Pilot will benefit of a favorable situation in all the most critical phases of flight, namely approach and landing, independently from the kind of flight, standard or extreme Bush Flying, or from his ability. Finally, in the remote instance of a descent with the optional ballistic parachute, the impact will be less problematic because of the Airplane damping system, a factor that should not to be undervalued. Our new Shock Cub offer this and much more. We could have illustrated it helping your fantasy visualizing operative situations full of emotions but we choose to leave to each one of you the freedom of imagining, after this reading, the infinite possibilities that this new Zlin Aviation Airplane will offer you and not to take away from you the taste of imagining these innumerable, but never the same, scenarios following your preferences and wishes.
Shock Cub represents for sure, to conclude, a new way in the world of the “Ultra Slow” but not forgetting the possibility of enjoying a respectable Cruise Speed when is needed for moving from “a dream to the next one” in your Flight Plan. All fine, in fact, “Who cares about speed? Nothing is like a Shock Cub!”.
EngineRotax 912 ULS 100hp
Fuel tank capacity68lt (18 Gallons - Optional 30 Gallons)
PropellerTwo blade wooden prop 183cm (72")
Wing span900cm (354,3")
Height225cm with Alaskan Bw 29" (88,5")
Wing surface area15,21mq (163,7sq/ft)
Wing chord169cm (66,5")
Cabin width69cm (27,1")
Undercarriage width with Al.Bw 26"238cm (93,7")